neoblood3d wrote:2n2r5 wrote:neo... did you install it with the boss nut still in place?
Yes I did. I pressed a 5/16th nut into the box from your design and bolted it down at the four corners using the preexisting holes around the original boss nut. I considered removing the original nut but figured I'd try it as is first. At first I had the 4 small nuts too tight and froze everything but after a small adjustment everything worked nicely and I tightened down an additional nut on each of the 4 bolts to lock the each first nut in place. My first run after the new mod was added was quite a bit smoother than stock I don't think you could get it much nicer. I've only run a couple tests but I will post pictures when I get home from work today.
Please do! I am curious. The slop nut is functioning more as anti-backlash I think. That is actually kind of an interesting way to install it. Maybe that is the way to go with the 5/16" nut.
EDIT:
I just got my aluminum test bed in the mail. I put the 5/16 slop nut on it at quickly realized something. All the vertical play in the rod was gone. If you leave the the slop nut that 1/8 turn loose like it wants to be then put the cover over it, the cover pulls down on the slop not restricting the Z movement. It still seems able to wobble in the x-y but that is kinda what we want. The only thing that would make it better would be more and freer movement in the x-y.
I have a few under powered Y replacement motors that I might try to put the 5/16 rod back on to test it out. Neo, can you include some pictures of your setup also. It wouldn't be necessary for me to revert if you have already done this. Thanks
SD3 w/ mods:
Glass bed with QU-BD heat pad upgrade, threadless ballscrew w/ 8mm smooth rod, spectra line belt replacement, lawsy MK5 extruder, Lawsy replacement carriage, E3D hotend, Ramps 1.4 w/ reprap discount controller, DRV8825 drivers, 12v 30A PS, Acrylic case, Overkill Y-idlers, Filament alarm, Extruder fan + more.