Tolerance, Wedge and remixed parts

thingiverse

I made these modifications because I had 624 space with a bit loose tolerance and I used tube OD15mm/ID13.5mm, plus the joints are completely loose. The internal space for passing wires was also modified from 1.7mm to 2.0mm in order to make it easy to assemble servo wires. And at least, the penholder version two, I added an option to rotate up to 30 degrees. I saw in an author's picture that he had already done it but didn't provide us with the modified file, so I made that modification myself and changed both sides to 4mm (at the original, one side is 4mm and the other is 5mm). I hope this can help someone assemble this great drawbot design better. See you!