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Instructions for the DIY 3000 Mkiv Phone Version

Checkout our latest item from the wasteland!

NOTE: This kit should fit most common cell phones up to 177mm x 88mm x 18mm. Please verify that your phone fits before ordering!

This kit is meant to be easy to build and easy to use. We print this very cleanly to make the process of finishing quick and painless.

Please verify that you have the following parts before continuing.

In addition you will need foam from 10mm - 20mm thick for padding around the phone.

Clean Up and Fitment

Remove any brims, tabs, or support material. You can find instructions for working with 3D printed items here:

Please read that section then come back after cleaning up the parts.

After you have cleaned up the parts test fit them to make sure everything fits properly.

Use the following pics to see how it all fits together.


You will want to test fit this to your forearm before continuing.

If your forearm fits nicely or is too small then you will not need the spacer. Instead you will use padding to make it fit your arm.

You will use the short wide clasp.

If your forearm is too large then you will need to use the spacer and the long clasp.

Glue the spacer to the top half of the vambrace.

Apply glue along the edge shown here.

Align the spacer with the outer edge of the top half.

Clamp or otherwise secure the spacer.

Wipe off any excess glue.

Wait for the adhesive to set.

Note: If you end up with a gap sprinkle some baking soda in the gap. Wipe off any excess soda, then soak the baking soda with super glue.

It should harden very quickly then you can sand off the excess.

This will result in a very strong connection and it will fill the gap.

Preparing for Paint

At this point you need to decide how you want to move forward.

If you want a top quality prop you will need to smooth out the print lines. There are several methods.

  • Sanding - It is possible to finish the kit with several iterations of sanding, priming, and then sanding again. This is the fun way, but we don't recommend you have that much fun! This method will weaken the item.

  • Fillers - Technically it is possible to use fillers thick such as Bondo, wood putty, ect. but you probably shouldn't. In our experience this method results in much more work than is necessary.

  • Resin Coating - The best way to finish our kits is to coat them with resin. This allows for smooth surfaces, adds a significant amount of strength to the prop, and can even add a little weight. All of our kits were designed to be used with resin not sanded and primed! Learn more about resin here. 

If you prefer a quicker build and are ok with some imperfections then you can simply sand any rough spots with 150 grit then sand the rest of the prop with 220 to scuff up the surface. Its now ready for primer.


After smoothing, or scuffing the surface you are ready for primer. Apply a thin layer of primer over the entire kit. Start with 220 grit sand paper and sand the entire kit. At this point you can paint the prop but you will have some scratches and print lines showing.

If you are wanting a premium surface then you will need to do several iterations of primer and sanding. Gradually increasing the grit of the sand paper each time.

When the item is smooth enough for you then you are ready for paint. There are numerous tutorials showing how to paint props so we will not reinvent the wheel. The search engine is your friend!!!


The tape holder is friction fit, the indexing pins hold it in place and act as a pivot.