Even if I had to deal with a few setbacks, the work went forward quite smoothly and pretty much the way I had imagined it. However, some serious precision work was necessary to make the parts as accurate and clean as they turned out to be, which was no easy task at all! As you can see in the pictures below, I shaped the wooden raw material with knives, saws, files and of course different kinds of sandpaper until I was satisfied with the results, while permanently applying coats of primer in between to reveal rough spots and other blemishes yet to be smoothed out. The most useful tool in this process? My caliper, which I used to continuously measure the thickness of the ribs, the spacing between them, etc. Without it, the parts undoubtedly wouldn’t have turned out this nice.

Of course, the pieces are not 100% symmetrical or exactly like my schematics, but I’m very pleased with the results nonetheless. The three parts I made in this manner are the ribbed middle section as well as the two back pieces. I decided to do the latter ones separately so I could make seamless resin castings of them later by using a one-piece silicone mold for each in contrast to a two-part mold for a bigger piece, which would possess a seam line by default.

So, without further ado, here are the pictures. First, the finished parts:

The original prop and my schematics for comparison:

And here are some progress pictures:

Very useful for making flat surfaces truly flat: a belt sander.

Humble beginnings…

Expanding the grooves.

Cutting deeper to match my schematics.

Some filing action to accurately shape the ribs.

Splash coat applied to reveal all kinds of blemishes.

The final cut to trim the piece from the excess wood.

The next part of the probe I want to tackle is the tip of the tool, which I will have to scratch build since I wasn’t able to identify the nose hair trimmer part that was originally used for this purpose.

Keep watching the blog for more updates. If you want to catch additional info between my blog entries, follow me on Twitter: @trekprops!

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For what it’s worth, here’s a look at the test piece I was playing with to get accustomed to working with a lathe:

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As with most of these props, it was used as a medical instrument as well as an engineering tool. However, with this one, the scientific use was seen more often.

Here are some screenshots from “Star Trek: Captain’s Chair“:

And here are two shots from the “It’s A Wrap”-Auction where two of these were sold:

Lastly, here’s the sequence of the lights from the show:

Even if it’s not very clear in the animation above, I know that the last LED of the sequence is green whereas the rest of the lights are of a warm yellow/orange color.

Using these references and with some help from people in the know, I was able to figure out proportions and measurements for this prop. Also, I learned that the tip was taken from a nose hair trimmer and the ribbed middle part was loosely based on a Star Wars lightsaber handle. The back piece was custom made from aluminum.

Here are some schematics I put together:

This drawing will be the basis for my replica. The dimensions should be pretty accurate to the original.

The next step will be to manufacture the ribbed middle section as well as the two back pieces. I will try to accomplish this by turning these parts from wood.

Stay tuned for more progress pics in the coming weeks!

Any questions or suggestions as to how I should proceed with this? Or do you know which nose hair trimmer model was used for the tip of the Neutrino Probe? Leave a comment and let me know!

Related Content:

1. Work In Progress: Neutrino Probe – Main Parts
2. Work In Progress: Neutrino Probe
3. ODN Scanner
4. Work In Progress: ODN Scanner – Part II (Molding)
5. Work In Progress: ODN Scanner – Part I (Scratch-build)

Here’s a closer look to the resin parts that come with the kit:

First up: Wash these parts in warm, soapy water to get rid of any mold release agent that might still be sticking to them. You need to get it off completely because it can prevent primer and paint from adhering to the surface properly.

Parts cast in resin are most times rough when they come out of the mold and have to be sanded smooth before processed further. In this case, the pouring of the resin created a ridge in the “walls” of the body shell. This is the area that will later be glued together. Here’s a close-up:

In order to make it possible to glue the parts together, you have to sand those areas smooth. I use a large piece of sandpaper mounted on a board to accomplish this.

The parts that come with the kit have already been pre-sanded, but you’ll still have to do some fine-tuning to fit the parts together perfectly.

Be careful not to sand too much material away – keep in mind that the electronics have to fit inside! Keep measuring the thickness of the two shells aligned to each other with a Caliper to make sure the prop will be equally thick on each corner.

Here’s the result:

Before continuing with the body, let’s pay some attention to the inner workings of the scanner first! Here are the electronics that are included in the kit:

Since the LEDs alone are not wide enough when placed next to each other, use some 1.0 mm styrene to act as spacers between them. This way, the width will be more accurate to the original prop.

This step can be quite tricky! Use some fast setting super glue and rough up the LEDs as well as the styrene with sandpaper or a file. When done, the glue will bond easier to the material.

Update: Since I wrote this tutorial, I’ve improved the set of electronics and am now using a LED bar instead of five seperate LEDs. Thereby the aforementioned (very elaborate) step in construction can be dropped:

Also, I am now using other super-bright red LEDs as the one shown here.

Next you’ll have to cut out all the windows out of the resin parts. Let’s start with the one for the front LEDs. As you can see in Part II, I specifically designed the silicone mold to create a particularly thin layer of resin in this area. That way this step is easily done with a sharp X-Acto knife.

Although the area of thin resin is fairly large, be sure not to create a window that is too big, because you wouldn’t want to have any gaps later. Keep comparing your assembled LED bar with the window to ensure a tight fit. Of course, if you want a bigger window, feel free to do whatever you think looks best. Gaps can be filled with putty later if needed.

Use a small jewelers file to smooth the edges. If necessary, use some spot putty to resculpt any imperfections here. Primer the part to reveal any blemishes and keep working until they are removed. When the electronics are installed, any work on this window will be very difficult, so complete it before the installation!

Next you need to cut out the battery door. The best place for it is in the handle on the backside of the prop. The opening can be conveniently hidden under one of the styrene parts that will be added later.

To determine the dimensions of the opening, simply measure the battery holder which is included with the kit. Then, cut out the matching styrene part using the included templates and place it on the handle.

Hint: Use spray glue to attach the templates to the styrene before cutting. This way the shape will be accurate and the paper can be easily removed in warm water.

Trace the outline of the detail piece and add the measurements of the battery holder like this:

The resin in the handle is approximately 5 mm thick, so you’ll need something more effective than an X-Acto knife this time. You can get good results if you drill four holes in the corners of the layout and then use a fretsaw to cut out the door.

This is the result.

Use a small and flat file to clean the shape of the door.

Now, the openings for both the trigger and the top LED have to be drilled. When doing that, it’s important to align the resin halves perfectly and to be careful not to bring them out of alignment during the drilling process.

For the trigger, simply drill a hole of 4 mm in diameter in the middle of the recessed area on the handle. Test fit the trigger and extend the orifice if necessary before continuing!

To determine the location of the opening for the top LED, use the template of the head piece, which will be added later. You can also use this and other pictures in this tutorial as a reference.

You’ll have to make sure that the electronic components have enough room inside the body to perform their function. To do this, you’ll need to dremel some of the material away.

This is where the battery holder will be put. You’ll have to align it to the door in the other body half, which will be placed on top of this one to enable easy access to the batteries. Again, use the dremel to create some more room if necessary.

This is how the electronics are arranged inside the prop:

To attach all of the components permanently into the resin shell, use a strong putty, for example a 2-component polyester putty which I use in my builds.

As you can see, all of the LED components are placed very near to each another. In case of the green running lights, this is on purpose and not a problem. But as far as the super-bright red LED is concerned, there is a problem with the close proximity to the green LEDs: Light bleeding. To make sure that the red LED doesn’t light up the green ones next to it when activated, you’ll have to putty up the entire area around the green LEDs and use black masking tape around the red LED.

When inserting the LEDs into the window, be sure not to make them flush with the front of the resin body. There needs to be some space for a piece of the included translucent plastic to go in there later.

When the electronics have been successfully installed and tested, the resin body can be permanently sealed. First, use 5 minute epoxy glue to attach the resin body halves to each other. Then, putty up the seam lines and sand them smooth when the putty has dried.

This is the most elaborate part of the buildup. Use primer to reveal any blemishes in the finish and remove them with spot putty and sandpaper until they’re all gone. Be sure to mask all LEDs and the trigger to protect them from sanding, puttying and priming!

Next, the head piece needs to be attached. Before you do that, sand a good portion of the top array off so that it will have the original thickness afterwards when the styrene is in place. Use the templates to cut out the shape and then use 5-minute epoxy to glue it on.

Again, putty the edges and use sandpaper to round them. Try to make it look as if the part was integrated into the overall shape of the prop from the beginning. As before, repeat the puttying, sanding and priming until the result is acceptable.

When everything is done, it’s time to paint!

You don’t want to glue the greeblies onto the paint later, so mask off all areas which will be enhanced with details. Then, paint the entire body with PK 7173 or a matching equivalent.

Don’t forget to drill the holes for the battery door screws!

When the paint has fully dried, mask off everything but the handle and the top scanner array and paint them with PK 7179 or a matching equivalent.

After this is done, remove the masking tape and continue with the last step.

Here all of the detail parts at a glance. For the emitter, shorten the acrylic rod to a length of approximately 12 mm and cut it in half. Sand the flat side of it to achieve a frosted look and a light diffusion effect.

Here are the color codes for the greeblies: Handle details, front ribbed piece and one of the small top details: copper metallic. The other small top detail: red. Rim strips and pointed front detail: PK 7179 or matching equivalent. Square additional detail on pointed front piece: beige. If you want, you can also paint the screws in the same color as the handle details to blend them in.

Again, use 5-minute epoxy or CA glue to attach the greeblies.

Screw the battery door in place after inserting two AAA batteries.

Fit the translucent plastic into the front LED window and insert it.

Cut out the display graphics that you wish to use and test fit them. When your display graphic fits the recess perfectly, use some thin double-sided adhesive tape to glue it inside. You can also use spray glue for this.

That’s it, your ODN Scanner is finished!

Now, go ahead and scan away!

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Because the finished prop was supposed to contain an electric circuit with a super bright red LED and five green sequencing lights, the mold had to be done in a way so that the later resin casting is hollow. This could only be achieved by doing two resin halves which were then put together. This circumstance didn’t make the task of molding the prototype any easier…

Here’s again the finished master model just like it was about to be duplicated. To reveal small imperfections, I already applied some coats of primer and then repaired whatever didn’t seem right.

Since both halves of the cast resin parts should be as symmetrical as possible, I marked the middle of the body using a pencil. This helped me to accurately shape the clay bed later.

Next I had to make sure the work surface was leveled. This is checked best using a spirit level. If the work surface is not leveled now, the seam line of the two resin halves will not be straight later and they won’t fit together.

The next step is the most difficult and time consuming part of making a two part mold: The master model has to be half embedded in clay to create the first half of the mold. The above mentioned marking on the body of the prototype now helped me.

Be sure not to use just some material for this but non-reactive clay to avoid inhibiting the chemical reaction of the two silicone rubber components. To ensure that, I use a clay that doesn’t contain any sulfates and is oil-based. It works very well together with the additive cross-linked precision casting silicone I use.

The master model has be mounted evenly on the work surface. I achieved that by sticking chunks of clay under it to stabilize it:

Next up is the task of shaping the clay bed. I started by putting material close around the prototype body and then worked my way away from it.

Now the mold box had to be created. It determines the final size of the mold. Most people use styrene or wood to construct this box and seal the corners with clay but I found that LEGO bricks work very well because they can be re-used every time to create boxes of different sizes and the buildup of the box is fast and easy..

Now comes the tricky part: The important thing is that exactly half of the model has to be embedded in the clay. This just alleviates the buildup of the kit later. Also very important is the fact that the clay needs to be aligned exactly to the body. There mustn’t appear any gaps between the model and the clay. This could be repaired later, but it’s easier to do it right here. So, precise modeling work is in order here!

Of course, the entire inside of the mold box has to be filled with clay. As you can see here, I first did this only roughly and then did the fine tuning later to get the surface smooth and to close all the gaps between prototype and clay.

Still quite some work to do here!

The next picture shows a pretty good progress on the clay bed. To do the shaping I use a putty knife which makes it easy to reach tricky areas, for example corners.

Remeber to wear gloves! Otherwise the clay will get stuck under your fingernails which is quite uncomfortable. Furthermore, the clay will get dirty rather quickly if it is exposed directly to your fingers even if you washed your hands before!

Here’s the result after a lot of work: The surface is now very smooth and there are no more gaps anywhere.

Next I used a pen shaped tool to create several small indentations in the clay around the model. They will later become pins as the silicone flows into them and cures. The other mold half will then again show these troughs and both halves will be perfectly aligned to each other.

This is important for creating solid castings by pouring the resin into the mold while both halves are closed. Even though this was not the type of casting I wanted to do, I nevertheless chose to implement this step because it’s not possible to add it later.

After I had enlarged the mold box up to the desired height, I was ready to pour the mixed silicone rubber into it:

The deepest areas have to be filled with rubber first to avoid air bubbles. For the same reason you should pour a thin stream so that bubbles cannot occur in the first place and those created by the mixing of the silicone components can break.

When the prototype is completely covered with silicone, you need to add at least one more centimeter in height to make sure the “base” of the mold is thick enough.

After the silicone has cured, the entire mold can be turned around, …

… the LEGO bricks can be dismantled and the clay can be removed. Be careful not to move the master model in any way. Note the above mentioned pins in the silicone.

Remaining clay residue has to be removed.

Most silicones are self-seperating, which means that the master model won’t get stuck to the rubber so it can easily be demolded. This however isn’t the case when silicone is poured onto silicone. In this case, the two rubber parts would bond together and become one piece.

So, to avoid enclosing the prototype into a solid block of rubber, I had to apply a release agent to the first mold half. I used vaseline for this, which I brushed on carefully. Don’t be stingy with the release agent! The more you apply, the easier the demolding process will be. Remember to mask the master model off to avoid blemishing it with brush marks which would be transferred to the new mold half.

After I had removed the masking tape, I repeated the above pictured step of pouring the silicone into the mold, waited until it had cured, demolded the prototype and disassembled the LEGO frame. Here’s the result:

The silicone mold is now finished and ready to be used for resin casting. However, if I had used this mold as it is to cast parts, they would have been solid just like the master model. This however, wasn’t my goal. I wanted to create two resin shells in which I could install electronics. So, I had to do a little more work on this mold to make that happen.

In order to get hollow resin shells I had to find a way to displace the resin that I would pour into the mold halves. The first step to achieve this was to use clay again to shape “walls” which had exactly the thickness that I wanted for the resin pieces later. Everything that I made out of clay here, would become resin later.

Note the recess for the LEDs!

Next, I placed wooden slats with screws in them over the mold. The screw heads had the purpose to attach themselves to the silicone rubber I was about to pour into the clay lined mold. This way I would have a comfortable handle to place the inner silicone displacement piece inside the mold later.

Here’s the result of this rather complex mold making process: two two-part mold halves (front side and back side, only one half is pictured) which produce two resin shells that fit exactly together (well, more or less since there’s always some excess resin that needs to be sanded off).

The development of the two most important parts for the ODN Scanner kit is thus complete and the buildup of the hero prop can now begin!

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With every building project, there’s one essential question: What material am I gonna use? Well, in prop building there’s most of the time only one answer to this question and that is “styrene“. Styrene is nothing more than sheets of plastic which is available in several thicknesses. It is also used in other model building efforts, for example architectural models.

So, the first step of building the prototype was to cut out all of the needed pieces from styrene (I used styrene with a thickness of 1 mm). After I had determined the shape of these parts by drawing a blueprint, I printed them out and glued them onto the sheet of styrene using spray glue. Next up was cutting the pieces which I did using a sharp precision knife. After scorching the sheet two or three times, they can easily be broken off along a straight edge.

After that it’s no problem to remove the paper from the styrene. If it doesn’t come off easily, simply put it in luke warm water for a few minutes. Then, the edges of the styrene parts had to be sanded lightly to create clean edges. The opening which would later become the display window proved to be especially difficult. A lot of sanding work was necessary to achieve really straight lines and rounded corners. Very useful in this step was sanding under running water which requires a special kind of sandpaper but results in very little dust and a very smooth edge.

Here are all 24 seperate pieces which I marked with the respective codes to know which one belonged where.

To see if these pieces could fit together to result in the object of my wishes, I did a test fit and glued them together using removable masking tape:

Styrene is best glued together with a special plastic glue which joins the parts permanently:

I filled the inside of this open box with putty to gain additional material for the later sanding process of the corners and edges. I wanted to prevent creating a hole in the body which I would not be able to close again.

After I had closed the body, I sanded the hole object roughly to remove all of the sharp edges and corners.

Next up was the handle. Here I also did a test fit first to determine how I would have to glue the pieces together. Because the handle would have been too thin consisting of 1 mm styrene, I glued two identically shaped parts together to make it thicker.

To perfectly fit the handle onto the main body, I actually attached the respective parts to it while glueing them together.

As you can see, the edges of the handle were very raw. Because of this I again had to use putty and a lot of time to give the handle a sleek shape and a smooth surface. The complex form obviously didn’t make this easy for me. However, the time was well spent as you can see here:

Fits like a glove! However, the main body being curved and the inside of the handle being straight, small holes were visible in between which again had to be filled and sanded smooth.

After that, the complete body had to be sanded very carefully to make every surface smooth and to achieve the desired degree of roundness on all edges and corners. Because silicone rubber transfers each and every imperfection to the mold very rigorously, the master model has be as perfect as the final kit or prop is supposed to be. Mistakes made here are being carried all the way through to the final product and then have to be corrected on each casted part anew. So, a lot of work can be saved here by thinking everything through and doing things right.

I here fabricated one set of greeblies, which are normally being put on as the last step in the buildup of a prop, to see what the final look of the prop would be:

In the same way I did the handle, I also made the scanner array on the top of the prop above the recessed display area. This way I could simply plunge it on and then attach it.

Even if it doesn’t look that way, the construction of such a prop from scratch using the methods shown here is a lot of work! Sanding is by far the most time consuming task because you always spot another small blemish which has to be repaired or areas you are not satisfied with. Also, the whole process requires a lot of patience because it just takes very long if you want to do it right. Anyhow, the effort is well worth it especially when you see yourself making progress and getting the project somewhere.

So far, so good. The master model is finished. Next is Part II in which I describe how I made the silicone mold.

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This excitement of mine led to a passion for engineering tool props. As a matter of fact, this is what brought me into the hobby of prop replicas in the first place! Even as a kid I always wanted to have these little blinking devices, so why not build them myself now?

Since these types of props are not very prominent within the Star Trek universe – Phasers and Tricorders for example are more dominant – it is rather difficult to get any information regarding them. So, there’s only one method to get some reference material: To watch episodes and capture as many screenshots as possible.

Here are some reference pictures I have collected for the ODN Scanner:

Version 1: Early seasons of DS9 – color scheme 1 – medical application.

Version 2: Late seasons of DS9 – color scheme 2 – engineering application.

Version 3: Late seasons of Voyager – color scheme 3 – engineering application.

As seen on the pictures, these kinds of props often don’t have a “fixed” field of application. Because of this, they can be seen in the hands of an engineer as well as in sickbay.

In the Star Trek universe, the explanation for this is simple: All of these devices are composed of modules, so they can operate in different configurations and with a different programming to perform various tasks.

Production-wise of course, the prop department has a certain amount of these “miscellaneous” props in storage and then decides which one suits the requirements of the script best. If necessary, they sometimes repaint it to make it look a little different.

This is also why these types of props usually don’t have an “official” name. Therefore I had to make one up which would correspond to the shown usage scenarios of this prop: The ODN Scanner (ODN = Optical Data Network). I chose to ignore the medical usage here.

Using my reference pictures, I could then draw the following illustration, which also contained the final dimensions. Although some minor details are different from the finished product, the most important features are outlined here:

Careful planning is very helpful in this hobby.

This replica is a so called hero version. This means that it’s not just a painted chunk of resin but a hollow shell with working electronics inside. In this instance, there is a running light with five green LEDs above the display and a super bright red LED on the top side of the scanner. This brings the prop to life, increases the authenticity and is just so much more fun!

The traditional color scheme for Starfleet equipment: PK 7173 & PK 7179

Several greeblies add authenticity to this engineering tool: Styrene, clear plexi.

This prop can be seen in “Deep Space Nine” as well as in “Voyager”…

… and also had a short appearance in the show “Borg Invasion 4D” in Las Vegas.

I also made the display graphics myself…

… and got it printed on high quality photo paper.

This so called hero version contains an electronic circuit, …

… which lights up 5 green running LEDs and one super bright red LED.

The button to activate the lights is located on the handle.

The batteries are installed into the handle, …

…which can be opened to replace them easily!

Here is a flash animation to show the scanner in action:

The glowing LEDs are not simulated but actually photographed! The speed of the running light matches almost exactly the real thing.

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The kit consists of the resin cast body and some tape which is added in the end. And that’s all there is to it, really.

Here are some detail shots of the casting:

And here is a picture of the original for comparison:

When I first tried to cast this prop up, I had a lot of trouble with air bubbles in my castings. Then I learned how to improve my technique of mixing the two resin components by adding them together and then pouring them from one cup to another several times instead of stirring them. So, very few air bubbles were left to be filled.

To fill the bigger holes I used a two-component polyester putty which is normally used in the automotive sector. It cures very quickly (within 30 minutes) and can be sanded very easily.

Here are two of the biggest bubbles already filled:

Next is sanding. This is the most elaborate step in any prop building project. You will spend a lot of time grinding and sanding. So, sandpaper is essential here.

Remember to “go through the grits”. This means that you should start with a higher grit sandpaper to roughly shape the object and then move to lower grit numbers to make the surface smooth. Be careful not to remove too much material in the beginning, because it’s much easier to remove a little more instead of adding something.

In the next picture you can see that I used a high-grit sandpaper to process the larger air bubbles first. The hole is still visible. Also, there is still putty which doesn’t belong there.

The tip of the instrument is next: Here I also filled a smaller air bubble and sanded it smooth going from high to low grit numbers.

I decided to drill a hole into the tip, because that’s how it is on my original aluminum prop. Also, it adds a lot of authenticity.

Sandpaper is not only used to sand down any left over putty, it is also necessary to remove other flaws that resin castings might have, for example the seam line. It occurs along the body where the two mold halves meet and is inevitable. Certain professional casting techniques however can reduce the seam line to an extent where it’s almost not visible anymore.

Reality is, that you should inspect every square centimetre or even millimetre of your prop and process it with sandpaper or putty. Sometimes however, sandpaper is not the first choice, for example when it comes to fine details or structures. In this case you should have several different small files handy to handle that.

For bigger kits or larger areas you can also use power tools like a belt sander. But be careful: These tools don’t allow the same control over your work as a manual job does. Before you know it, your project could be ruined because you removed too much material or you slipped and damaged something. Also, the risk of injuring yourself is a lot higher, so take the appropriate steps to protect yourself!

Now, if you think that the prop surface is smooth and you repaired all of the defects, apply the splash-coat (a coat of primer) to reveal any previously invisible imperfections: scratches, blemishes, pinholes.

Allright, there’s still a lot to do here!

To remove such small defects, I use a spot putty. It’s not necessary to mix it from two components which makes it very easy to use right out of the tube. I chose to use a red spot putty because it’s easily visible during the application as well as during sanding. Since it will be painted over later anyway, it won’t affect the final finish.

Here you can see the areas covered with spot putty:

After I had applied spot putty to every visible scratch, pinhole etc., I then again used sandpaper to once more remove any excess putty by “going through the grits” until the beige color of the resin becomes barely visible again. However, don’t take off too much – you don’t want to change the overall shape of the prop.

This is how the result looked like:

Now, another coat of primer was in order. After it had dried, I again took a hard look at every part of the prop. Normally there are still pinholes etc. left after this “second splash-coat”.

This is repeated until the prop body is absolutely perfect. Of course, the term “perfect” depends on what the person who is building the prop is regarding acceptable. Me, I’m a perfectionist and I probably do this way too often. Remember: The final coat of paint doesn’t hide any defects, but makes them even more visible!

A very important aspect here is patience. It can be quite unnerving to apply another coat of primer only to discover that there are still scratches or pinholes left. However, once they are all repaired, you can tap yourself on the shoulder knowing that you did everything possible to make the prop perfect.

Now that the surface was completely flawless, I could apply the final coat of primer. One last checking look: Is there still a… No, thank god it’s just a shadow!

After the primer had completely dried, I moved on to the paint. I used a chrome paint containing real aluminum particles to create a highly realistic approximation. Silver spray paint is also suitable for this. A little trick helps to prevent ugly paint blobs: Place the can in warm water for ten minutes. The heated paint will then be dispersed a lot finer.

One precept of painting is to apply several thin coats and let them dry before applying the next instead of spraying one thick coat. It’s alright if the primer is still visible after the first coat! Be patient, even if you want to finish the prop soon. You don’t want to ruin it during the last step by causing “paint noses” occurring due to too much paint, do you?

Once the painting process was finished and the paint was dry (again, you should rather wait a little long than ruining the prop), I could add the greeblies which was the last step in this buildup.

In this case, the greeblies are nothing more than differently colored grip tape cut to shape and attached at the correct areas (see illustration).

The last step is to paint the tip golden. Of course, I had to mask off the rest of the prop to protect it. I used crepe tape for this because it can be removed easily. Anyway, to avoid any risk of damaging the base paint, I only masked a small area at the tip and wrapped a paper napkin around the rest of the prop.

The prop is finally finished! Here’s how the result looks like:

Here are some comparison shots I did with the original aluminum version which served as a master model here:

There’s almost no difference visible on the pictures. The chrome paint is not quite as shiny as the real aluminum, but that was to be expected. Unfortunately it also tends to get even duller when handled.

Anyway, I think the result is very good and satisfying.

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Because of this, “Star Trek: Captain’s Chair” is a true treasure chest for me as well as probably for many other prop enthusiasts. This software enables you to not only move freely on the main bridges of the Enterprises 1701, 1701-D, 1701-E, the Defiant and Voyager, but also to look at all of the control panels, use them (!) and have a look at several props that are lying around. There are 360° panorama views of above mentioned rooms and all of the props so that you can look at them from all angles.

In this manner, I found the Sonic Driver lying on the rear work table on the Defiant’s bridge next to a hand phaser, a phaser rifle, several PADDs and some more tools:

I’ve always liked the look of this tool: A Simple, symmetric shape and a very high-tech appearance intensified by glossy metal.

To keep that look, I decided to do a replica of this prop entirely from metal. Aluminum was the logical choice for that since it is relatively soft and easy to work with. The first step was to have a look at the Quicktime VR file and to study the side view of this prop. Next, I translated this information into an illustration showing the outlines of the general shape with all its details. Then I added some colors to the drawing and supplemented it with “virtual greeblies”. Finally, I rendered a 3D view of the prop to evaluate its overall appearance.

When I was satisfied with the result, I took this data to a local machinist who converted the template into a real metal body and turned it from aluminium with great precision.

To finish it off, I then applied some carefully cut grip tape and some golden paint to the tip.

And this is how the end result looks like:

Being made from solid aluminium, the prop has a nice weight to it…

…and is cool to the touch…

…just as a real heavy duty tool should feel!

Note the picture subtitle in “Captain’s Chair”: “Measure tetryon particle flux fields”. I’m sure I’ll find such a field somewhere around the house…

Note: I made a silicone rubber mold from this prop to cast resin copies of the original. Here is a link to a tutorial on how to turn one of those castings into a prop.

Related Content:

1. Tutorial: Sonic Driver
2. ODN Scanner
3. Cardassian PADD
4. Mobile Holo-Emitter
5. Work In Progress: ODN Scanner – Part II (Molding)