My version of the Prusa i3

Hi,
I've just finished my first DIY 3D printer build, it was inspired by Toms3D Dolly cheapest 3d printer build although I wasn't trying to make it as cheap as possible.


Here is a YouTube video with a fly around the printer Youtube

All went well initially but I'm now struggling to get a repeatable Z height, it's a pain!

It looks like a solid build so you shouldn't need a Z height probe.

I use this z-stop off thingiverse and use the "paper thickness test":
[www.thingiverse.com]

I add a long nylon nut to the bolt and that is the fine adjustment on the home position. On the bed the home position is fixed and the other 3 have springs.
I use hex bolts and nylock nuts. Using a hex driver you don't need downward pressure on the bolt and therefore get a better feel of the paper dragging, the nylocks stop things from loosening up.

I rarely need to adjust the Z height, probably check it once every 30 prints.
To adjust I home X and Y, move the head and bed a little, home the Z and adjust the long nylon nut if needed. Then move the head/bed and check the other 3 corners using a hex driver to adjust if needed.