DBOT gantry now 600gr lighter

[o_lampe]

Hi guys,
when I built my DBOT 3 years ago, I wanted to add mgn12 rails. But my CAD skills were pretty low, so the first attempt was very bulky and heavy.
Now I've re-designed it and it is around 600grams lighter than before. The angled steel bracket to mount the Titan and the 2020 crossbeam had the biggest impact on the scale. (literally )

The hotend bracket still has some details I want to change, but I'll post the final design on thingiverse after some real tests.
A short drytest with 180mm/s printspeed was succesful, without the need to tie down the printer.

[oliof]

Very nice! Some people worry about free hanging linear rails not being constrained and possibly causing problems, but I think that worry is overblown.

[o_lampe]

@oliof
Right, the original D-Bot even uses 2040 extrusion here...
But it also depends off the hotend-weight.

I have the option to add a 10mm Carbon tube parallel to the rail.
Weightless design and extra strength were needed.
I'll give it a try, when the printer is running again.

[whopping pochard]

@oliof I have some cheap rails that are pretty curved in the pitch axis. They flatten right out when bolted down to extrusions. I suppose this is not news to anyone here but probably extra important not to cheap out on the X rail if it’s unsupported.

[o_lampe]

@whopping-pochard
Good point, I'll make a testprint with a part placed along the rail in question. It's also a good ringing test.
The belts are all on one side, I hope that keeps the extruder-mount from twisting, too.