scratch build Robocop ED-209 by RandomDesign

[RandomDesign]

Next up, is the top part of the leg piece.

 

 

The inner part that will hold everything together was 3D printed in filament.

 

 

The other parts will also be molded in silicone and the cast in resin. But first, all parts were printed in PLA or Resin and made a test if everything would fit.

 

 

 

The side panels are needed 4 time, also in a metal tone, so I was going to use the same technique as for the other parts.
So I started with the basic post processing.

 

 

 

After I was happy with the result, I again made a two part mold.

 

 

 

Then, I the 4 parts that I needed were cast, polished and weathered with metal wax again.

 

 

 

[RandomDesign]

As its shown in the 3D model, on the side will also be a detail flap part be attached.
So I resin printed the template.

 

 

It was also made in the cold cast technique. Cast, polished and weathered.

 

 

 

 

Finished again with some cylinder head screws for even more details.

 

 

The part for the back section, I first printed in PLA. But, I didnt wanted to spend so much time with sanding, so I just resin printed the part again.

 

 

Some slight sanging and spray filler, and this part was already done and ready for the paint job.

 

[RandomDesign]

For the long rails that will hold the last part of the legs, I made a resin printed template first.
This was then slightly sanded and prepared for mold making.

 

 

Cause of the size, I opted again for a two part mold. So, I started with a clay up of the first half.

 

 

This time, I went with a stronger silicone. Mold Star 30 from Smooth On to be exact.

 

 

Those parts also should be in the same metalic look like all the other metal parts. Cast and polish.

 

 

 

The most upper part is a mixture of resin casts and PLA prints.

 

 

The PLA parts were sanded, filled and prepared for painting.

 

 

 

The rings were cast, in the cold cast technique. For the mold box, I used a cheap yoghurt container.

 

 

 

Like the rails all parts were cast and then polished.

 

Edited Tuesday at 02:48 PM by RandomDesign

[RandomDesign]

And now lets go for the last section of the leg part.

 

 

The middel section was printed in PLA. Sanded, wet sanded and prepared for painting.

 

 

 

I needed the cylinders 8 times in total. So I also went with a silicone mold and resin casting.
First, I printed the template and processed it until I was happy with the result.

 

 

To save silicone, and for a better handling later, I 3D printed a moldbox. That way I only needed a small amount of silicone between the template and the mold box.

 

 

Saving weight, I roto cast all the cylinders. So, I just poured resin into the mold and rotated it until it was cured.
That way, I ended u with a very light weight cast. The inside was filled with some expanding foam to give the cylinder a little more structure.

 

 

 

After cutting down the excess material, all cylinders were polished and weathered.