Extra large D-Bot almost done 380x380x500

I ended up using as much metal bracing as possible instead of the 3d printed parts (All printed parts were made with PETG). Also, I replaced the z axis wheel mounts with OpenBuilds aluminum plates / eccentric spacers and it's super stable now. Still waiting for my aluminum plate / silicone heating pad to come in the mail, but I've done some test (no filament) prints and everything looks to be running well. I did notice a lot of vibration in vertical extrusion near the x/ y motors (due to how tall I made it). I added some 45 degree bracing on the sides and it removed most of the vibration.

I hope to be printing in PLA (no heater) this weekend!

Edited 1 time(s). Last edit at 11/30/2016 09:47AM by Tmprof.

That looks really solid. Nice Job!
I avoided ABS as well for now. No heated bed for me.

How do you attach the diagonal cross bracing like that?

Looks like just a bolt and nut locking it in by friction.

Quote
Mikk36
Looks like just a bolt and nut locking it in by friction.

Oh yeah, you're right. I didn't quite see that.