I opened the bracket the same like you showed me, but i still have 8mm left. I checked motors dimensions and pulleys dimensions all seems ok. Where that difference could come from? Maybe you are using different pulley?
Attachment 18921
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I opened the bracket the same like you showed me, but i still have 8mm left. I checked motors dimensions and pulleys dimensions all seems ok. Where that difference could come from? Maybe you are using different pulley?
Attachment 18921
The one in my drawing is 20.6 mm and it is exactly the same like in any drawing you could find on internet with nema 23 dimdnsions. Double standard?
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Is your measurement just to the end of the key in the shaft?
http://cnc4you.co.uk/resources/Stepp...1B%203.1Nm.pdf
My motor shafts don't go all the way through the pulley and have been running fine for years.
If it is more than half way into the pulley and the grub screws have a good lock onto the shaft I don't see any major problems.
Just looked at my Z axis and it looks a little like this.....
http://uploads.tapatalk-cdn.com/2016...717ca50bda.jpg
Shaft is 3/4 the way in the pulley and held on with 2 off M3 grub screws @ 90° to each other...
http://uploads.tapatalk-cdn.com/2016...bf67805a6d.jpg
Plate thickness is 3mm so 17mm pocket machined out the plate.
So do we actually need that thickness of a plate if anyway we are machining almost all the through the thickness?
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It has to have some inherent stiffness to stop any bending forces from the belt, I had it 20mm thick as it came out the same sheet as the rest and I needed the thickness to put the M8 bolts into....
So in my case i have it 10mm and attaching it to the other plate with M6 screws. Is that allright?
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Is there any chance that somehow i have blocked my posts, so others cant see it? The same with massages? Or people just doesnt respond as much as i would like? :D
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