Most of the concept works, except that the central connector is too weak to be 3D printed. I need to come up with something other than a snap joint. 🤔
Most of the concept works, except that the central connector is too weak to be 3D printed. I need to come up with something other than a snap joint. 🤔
This looks cool, any pics of it in action?
The connector joining the two halves of the axle broke, so the axle is in two pieces. 😩 I might be able to join them together with glue, but I have to be careful not to get the whole thing stuck. 🙈
Nice. What printer are you using?
It says Prusa i3 mk 3, but it might have been upgraded to the mk 4. 🤔
The Nextruder layout sure looks like a MK 4
Could be one of the 3.x mid-upgrades. They offer a few different options depending on what features you want.
This is what it looks like inside. The bottom part originally has an extension that hooks into the top part, but it was too brittle and snapped off.
Is there a way to use a nut and bolt embed? Or even just adding a cavity in the shaft to put a metal rod inside.
My next plan is to use a screw-in design with the BoltFactory extension in Blender. I was hoping to 3D print the whole thing. 🤔 extensions.blender.org/add-ons/bolt...
You have the layers working against you here, since especially with a thin shaft, it’ll always be weakest on planes parallel to the print bed. If you can print a square or hexagonal shaft laying down and then insert that, it’ll likely be a lot stronger since the layers are going lengthwise.
Yea. I wanted a ball bearing to fit in the middle, but I'm removing it to make the shaft thicker with the screw-in design.
Hope it works out! Bumping up the infill on the shaft and maybe switching to gyroid could help too. Good luck!
Thanks! 💖