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Table of Contents
Head with gas mask
Materials used for printing
- For every part except the ears: LWPLA (ColorFabb) from 3Djake
- For the ears: Filaflex foamy TPU from 3Djake
Materials used for post processing/painting
- For all things black: Vallejo Model Air Black RLM22 (V71057)
- Primer: Vallejo Surface Primer USN Light Ghost (70615)
- Varnish: Vallejo Model Color Gloss Varnish (V70510)
Headshell
To reduce weight the headshell and all other components (except for the ears) were printed using LW-PLA (lightweight PLA). This pla foams up above a certain temperature, which reduces its density greatly. There is a tradeoff of course, because as the density reduces so does the strength. Although in my experience even at 50-60 % weight (compared to “solid” PLA) it's still pretty tough and flexible.
My typical post processing sequence for PLA prints is as follows. Keep in mind this is just what I do CURRENTLY, and this is an ever evolving process and I do not claim this to be the best orcorrect way to do it!
- Remove brims, burrs, and strings
- Coarse initial sanding using 240 grit paper (dry)
- Glue what you need to glue together, if there are multiple parts to combine
- Second coarse sanding using 240 grit paper (dry)
- Spray with filler and let it dry (spraycan)
- Sand with 400 grit paper (wet)
- Spray with filler and let it dry
- Leave to dry
- Sand with 600 grit paper (wet)
- Spray with filler and let it dry
- Sand with 800 grit paper (wet)
- Optional: Spray with filler and let it dry
- Optional: sand with 1200 grit paper (wet)
- Spray primer (airbrush) and let it dry
- Spray colour pass 1 and let it dry
- Spray colour pass 2 and let it dry
- Optional: Spray colour pass 3 and let it dry
- Optional: leave to dry
- Spray varnish pass 1 and let it dry
- Spray varnish pass 2 and let it dry
- Optional: Spray varnish pass 3 and let it dry
- Optional: Leave to dry for 24 hours
You may need to repeat one or more of these steps (especially during sanding) depending on the print, and how fine of a finish you'd like.
Ears
The ears have been printed without any infill, with 2-3 outlines (need to check). They then recieved a grey primer (Vallejo, 2 layers) and then were painted black(using Vallejo air black, again 2-3 layers). Finally they recieved 2-3 layers of glossy varnish. I used an airbrush for all of the paint layers.
