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  #31  
Old Mon 15 February 2016, 20:11
Tom Ayres
Just call me: Tom #117
 
Bassett (VA)
United States of America
I went with 3/8", honestly I haven't noticed any backlash, not saying there isn't but not noticeable.
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  #32  
Old Mon 15 February 2016, 22:45
Nikonauts
Just call me: Nikonauts
 
Johore
Malaysia
Tom,

Owh, wow... That's only about 9.5mm.

I'm getting skeptical towards the manufacturers literatures.

----------------

Reish,

Thank you. I did read that thread before (and other threads that mentions about belt/pulley on this forum). I will re-read it again.
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  #33  
Old Wed 17 February 2016, 12:28
Nikonauts
Just call me: Nikonauts
 
Johore
Malaysia




Received raw material for Slide Plate, Hold Down Stub Shaft and Bearing Support Base.

The plate is 6mm x 102mm x 570mm DF2 (equiv. to AISI O1).
Cost is MYR60 (US$15)

The solid roundbar is 25mm x 250mm S45C.
Cost is MYR5 (US$1.25)

The thing is, the plate is rusty.... and the thickness is exactly as required in the drawing.

What's the many micron should I ask the machinist to remove?
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  #34  
Old Wed 17 February 2016, 16:26
Tom Ayres
Just call me: Tom #117
 
Bassett (VA)
United States of America
Just enough to clean up, I'd say a couple of thousandths of an inch. If the plate is being used for the z slide only the edges are critical for the bearings (which will be beveled leaving only a 1mm flat edge) otherwise I'd say sand it with a sander enough to knock of the bulk of rust and move on, paint it if you must.
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  #35  
Old Mon 29 February 2016, 10:56
Nikonauts
Just call me: Nikonauts
 
Johore
Malaysia
Guys,

While waiting for more parts to arrive, I tried to design my reduction pulley system.

It seems like the combination of my 34HS9801 motor with 25mm HTD pulley will cause about 17mm of the pulley bore surface not having contact with the shaft surface.

Assuming that the set screw hole center is exactly half the length of the pulley hub, that's as far as I can push it into the shaft, 1mm deeper then the set screw would miss the flat part of the shaft.

Could this cause a problem?


Last edited by Nikonauts; Mon 29 February 2016 at 10:59..
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  #36  
Old Wed 02 March 2016, 04:36
MetalHead
Just call me: Mike
 
Columbiana AL
United States of America
Look up rust removal fluids like Evaporust

https://www.evaporust.com/evapo-rust-rust-remover

http://www.wikihow.com/Remove-Rust-from-Metal

Soak for a while and use a scotch bright pad/steel wool to clean the surface, rinse with water and cover with primer (oil if not painting)
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  #37  
Old Wed 02 March 2016, 07:32
Nikonauts
Just call me: Nikonauts
 
Johore
Malaysia
Quote:
Originally Posted by MetalHead View Post
Look up rust removal fluids like Evaporust

https://www.evaporust.com/evapo-rust-rust-remover

http://www.wikihow.com/Remove-Rust-from-Metal

Soak for a while and use a scotch bright pad/steel wool to clean the surface, rinse with water and cover with primer (oil if not painting)
Didn't know such solution exist... Thank you sir.
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  #38  
Old Wed 02 March 2016, 11:55
Fox
Just call me: Fox
 
Amsterdam
Netherlands
I made an insert foe the pulley on a lathe with same motors, but i think you are fine. Use a little loctite 603 on the shaft pulley when in doubt when you nwed to remove you can heat thw shaft a little to remove pulley. Shaft is ok with a little heat.
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