A question. What should the difference in height of the two round bars be?
I’m going through ground down M5 nuts and printed frame braces at a prodigious rate.
14mm
Is that the gap or the distance between centres?
I kept all sides loose, then added the carriage, and kept moving and snugging until the carriage was moving smoothly, and the bars were parallel with the horizontal support structure.
I had thought that to just wanted to make sure I got the ballpark right to design the rod carriages. Working backwards from a hot end carriage is a plan I can live with. 100 M5x12 so far and I’ve run out again. Should have worked out how many beforehand but I’m enjoying the journey.
This spacer might help: https://drive.google.com/folderview?id=0B1rU7sHY9d8qVnp2WWxxZTFCNVU&usp=sharing via @Eclsnowman
Vertical spacing for rotating rods is 20mm, and 14mm for non rotating rods. I change bearing holder on one axis to align the rods base on the frame. Will post it for anyone want to try.
@Richard_Mitchell I see that you use non self-aligning bushing. Interested to know how this work out for you. Keep us posted.
I’m also using 8mm rods for both rotating and non rotating because the whole design is smaller. Hopefully I can knock another centimetre or two off the dimensions when I can do motion testing.
I don’t suppose there’s a design I can base the xy blocks on for 8mm rods and bronze bushes anywhere?
@Richard_Mitchell 8mm bronze self align bushings have the same OD as the 10mm. No changes needed for the printed parts.
Ok. I see you are using plain bushings.
Just trying to use the simplest cheapest parts I can, after all I have a 3D printer so I can do rapid prototyping 