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brandonh
- Is there a place with a bunch of pictures of assembled Simpsons? I recall seeing ones from MF NY but I can't seem to find them now. Trying to understand the wiring process.
I have a few on Flickr. However, that's the original GUS design, and the new arms will be strung differently. . .
Simpson Set
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brandonh
- Are any more basalt beds available? If not available pre-cut, do you have any supplier links?
- What is your preferred "1/2" Flatstock" material for the top and bottom?
Nicholas will have to answer the question about basalt beds, since they're custom cut to the Reuleaux triangle shape. There's no reason why a circular piece of something wouldn't work fine, though. And the prototypes have nice quality plywood for the top and bottom, nothing special.
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brandonh
Not hot end; was wondering about the extruder. I see the answer in the BOM now - MBE extruder. Can't believe this thing is bearingless - has to add drag.
Based on short but painful experience I don't recommend the QU-BD extruder block. Print something else - Airtripper, or whatever suits you.
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brandonh
I see now, the peg drops in. There's definitely room to minimize this (which I'm sure you know, but I'll list some ideas before making the mods):
Testing with a freshly printed arm and the tuner from the prototype, I think it would easily fit if the roof of the cutout were sloped at 45 degrees from the inside to the outside. However, my printer was able to bridge the gap very cleanly, and it would also be possible to just reduce the height of the cutout by about 9 mm and leave it square. It could be a bit narrower too, maybe 2 mm on each side.
As for the 608 holes, everything is printing cleanly, much better than the prototype when we had an unheated bed. Keeping the arm from warping seems to also make the hole stay more circular. The bearings just about fit in without heating, but I know better than to try that (the part will definitely split). If I get some time later I'll put the first arm pair together. . .