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I built a 3D printer that uses a 20mm ballscrew. The ballscrew is connected to a Nema 23 motor. I have the BK and BF bearings.

Sorry I am not at the moment at my PC with the designs so here is...

You asked "Why is the BK mounted to a thin strip of sheet metal?"
My BK's have holes front and top BK 10 bearing fixed side | Flickr - Photo Sharing!. I wanted to keep the back of the machine...

This is the design. I am wondering if I did it wrong with the motors at the top and the rods hanging off them
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The photos show how I attached the nut and how the nut looks. I screwed it...

Is everything supposed to rest on the nut? I screwed on the nut, the side that seems to have an integrated washer towards the bearing housing. I held onto the bearing housing and turned the...

Another question. Can I just place the BK on top of the rod and then the nut over it and screw the nut in and while I screw it in, it will press the BK down or will I damage something like that if...

So if I sand off a micron or two too much I am not going to ruin my whole machine then. How much weight can a 20mm ballscrew with a BK and nut normally take before it deforms seriously? I assume at...

What is supposed to carry the weight? The pressed fit bearings, or the spacer or the adapter to the motor or will they all just share the weight over time?

All I can think of is to sand off the...

How do I press fit the BK? I will burn the rubber if I heat up the BK in the oven. Do I need to buy dry ice to cool down the rod?

I am building a machine I want to kickstarter and it will be a...

Hi

The ballscrews that I ordered arrived today. Actually the second batch because the first batch was cut completely wrong. The guy thought 14 is the same as 41

So my question is, this new...

Cool. So if there is a gap after assembly I might just print something like a sleeve or a big washer to fill the gap

Hi

This is my second post, including the welcome post :)
I have been reading the forums alot, especially the huge post the one user made to explain ballscrews. I can't find the URL now

I am...

Hi

I have been 3D printing for about a year now and I started looking at building a CNC mill to make PCB's for my printed projects. I found this site and I have been reading alot about CNC...