These carriages are a remix from Haydn Huntley’s carriages for 2020 extrusions. https://www.thingiverse.com/thing:2183355
The magballs and precision-built the carbon fiber, zero-backlash, magnetic arms are available from Haydn Huntley’s website: http://www.MagBallArms.com
The primary change is to use the 15mm Delrin V-roller wheels from Think3DPrint3D, which best fit onto 3mm M3 bolts. https://www.think3dprint3d.com/deltaprinter-parts/V-roller I’ve also added a spot for 2.5 bolt to be used as an end-stop trigger.
These carriages have 45mm rod spacing, to use with the effector below: https://www.thingiverse.com/thing:2741790
Per carriage, you will need:
3 of the above V roller wheels.
3 M3x25 bolts
6 M3 flat washers
3 M3 nyloc nuts to secure the three axles.
2 3/8" ball studs (from Haydn Huntley - see above).
2 M3 nyloc nuts to secure the ball studs.
2 M3x35 SHCS for the belt tightener.
2 M3 nuts for the belt tightener.
1 M3x35 SHCS for preloading the carriage wheels
1 M3 nyloc nut for preloading the carriage wheels
1 M3x20 SHCS for the vertical post for the lower G2 belt attachment
1 M3x12 bolt for upper G2 belt attachment
1 M3 nyloc nut for upper G2 belt attachment
2 M3 nuts for the vertical post
1 M3 washer for the vertical post
1 M3 nut to secure the vertical post
1 M2.5x12 hex for end-stop trigger
Assembly order is as follows:
For each of 3 wheels in the carriage:
M3 25mm bolt
(printed plastic spacer)
For each of 2 magballs
For the belt holder bolt
20mm M3 belt holder bolt
For the pre-tension bolt 35mm
35mm M3 bolt
The OpenSCAD file is included along with the STL files in case you wish to make changes.
Printed in Raptor PLA, which is a modified PLA. Annealed in the oven for extra strength and temperature resistance, although I don't think that was needed for the carriages.