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Scuddy

Scuddy Dual Z Upgrade Kit for the Ender 3

by Scuddy Feb 25, 2019
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Do you have the PSU relocation bracket for Ender 3 Pro?

Sorry, I do not.

Great design! I just got my first Ender 3 today (been rocking a cr10s for a few months, figured my next one can be a bit smaller).

I don't suppose you could do a quick alternate for the top braces that use a 608zz bearing instead of a 688? I happen to have about 14 spare 608s lying around and wouldn't mind using them instead of buying more.

608 measures 8idx22odx7h whereas 688 is 8idx16odx5h

608s are standard skateboard bearings, so they're easy to come by.

Thanks in advance, either way!

This is really neat idea, Do you notice any improvement in print quality? any lagging in the z stepper?

The biggest improvement will be in the dimensional accuracy and tolerance of printed parts. I have not noticed any lagging by the Z stepper. But I spent a lot of time making sure the lead screws were aligned with no binding.

This is a very interesting idea. I had also looked at doing the linear rail upgrade for mine as well. I think that mixed with your dual lead screw mod it would increase the accuracy by a bunch. I'll definitely keep this in the back of my head and maybe start acquiring the parts necessary. the only question I have is the holder you mention you use from someone else, their model description is a bit confusing for me at least, what does it do and why is it necessary for your mod?

Almost all stock Ender 3 printers come with misaligned lead screws. If your x axis gantry doesn’t drop on its own when the stepper motor is off, it’s an indication your lead screw is binding or you brass nut is too tight. Use calipers to take measurements (from the front of the vertical printer frame to the back of the lead screw) at the top, middle and bottom. Note the difference in measurements.

hmm well crap I'll have to check that when I get home. Thanks haha. so that other part allows adjustment of the motor from the frame?

never mind I pulled up the 3d model of it and see where it goes. that's pretty neat. I'll have to print that too. thanks!

Yes. It’s slotted and lets you adjust the stepper motor front to back.

Got it thanks! I'll be checking this out when I get home. I have to work on stuff anyways, I just upgraded to the MKS gen L board and tried to print copper fill. the extruder had a hell of a time kept clicking, hopefully the vrep is just under what it should be. also need to do the steps for the new drivers.