This is a herringbone (a version of the double helical) gear rack and pinion, remixed from a single helical rack and pinion by janssen86. The doubling up of the helical teeth removes the axial thrust of a single helical gear and also helps keep the gear centered.
I printed a test print prior to using this as a component of a bigger project, but found that both I and my kids also enjoyed this as a fidget toy! There is something quite satisfying about how nicely the pinion stays on track on the gear.
No supports needed. I printed at 0.20mm resolution with a 0.40mm nozzle. Note that in the current version (not the one I printed) the pinion prints upside-down relative to the rack. This is deliberate, as the bottom side gets squashed a little, and this should symmetrize the squashing. The squashing made my test print not align so nicely. I should do another test print at some point.
You like Cults and you want to help us continue the adventure independently? Please note that we are a small team of 3 people, therefore it is very simple to support us to maintain the activity and create future developments. Here are 4 solutions accessible to all:
ADVERTISING: Disable your AdBlock banner blocker and click on our banner ads.
DONATE: If you want, you can make a donation via PayPal here.
WORD OF MOUTH: Invite your friends to come, discover the platform and the magnificent 3D files shared by the community!