The PolargraphSD case
The PolargraphSD has a case made of 16 laser cut acrylic parts. The case is not strictly necessary, but the touchscreen on the Polarshield is susceptible to a static electricity issue that makes it unresponsive. It's a temporary problem, but it's damn annoying and very hard to fix.
- The parts can be got here from https://github.com/euphy/polargraph_models/blob/master/casev2/flat2/polargraph_case_parts_basic_v2.2.pdf, designed to be cut from 3mm material. The part are held together with 10mm long M3 bolts and nuts.
- Snap the first part into place. It's fragile, and is a snap-fit.
- The part snapped on.
- Added faceplate, driver plate and other LCD holder.
- Put this sub assembly together upside down, and introduce the board to it upside down too.
- Slide the back into place. The metal tabs from the PSU jack are slightly long, so bend them over, or snip them off before adding this back part.
- M3 nuts go into the slots. I use tweezers to place them.
- The top plate goes on and holds most of the pieces together. Two 12mm M3 bolts (and washers) complete this stage.
- The part here has a notch on the top end, that a nut fits into.
- More nuts and bolts to hold this end piece (as well as the base) on.
- A U-shaped piece surrounds the PSU jack on the Polarshield.