Lead Screw backlash adjusting tool- DIY

Thanks to Jeff I was able to make this and successfully adjusted my (ahem) nuts.

I had a 1 foot piece of 1.5" galvanized pipe, and although welding would be quicker, there is some fume danger** there and it was raining outside. So with Jeff's measurements I popped open Fusion 360...wait I am a hobby guy, I don't have fancy stuff like that! I mean I popped open paint, excel and the snipping tool and got to work! :) It occurred to me that I should measure it in metric too because the the numbers are dead on in a lot of cases. I used the lathe and the mill to make the end caps but it all could be done on the mill. I like to use my angle grinder handle on shop made tools when it makes sense, just drill and tap M8 thread and instant handle!



SHARP Nut Adjuster.PNGSHARP Nut Adjuster1.JPGSHARP Nut Adjuster2.JPG

**Also PSA, Don't ever weld something after using chlorinated brake cleaner, it can create phosgene gas which will seriously maim or kill you!
 
Bookmarked. I need to adjust the backslash on mine. Need to see if it is similar procedure for my Wells-Index.

Had an issue where the machine pulled the part and ruined it. I know, pilot error, but it showed me than the table slides more that necessary…
 
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wachuko said:
Bookmarked. I need to adjust the backslash on mine. Need to see if it is similar procedure for my Wells-Index.

Had an issue where the machine pulled the part and ruined it. I know, pilot error, but it showed me that the table slides more that necessary…
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Need to use backlash eliminator when climb milling. HTH
 
OTmachine said:
Need to use backlash eliminator when climb milling. HTH
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That is why mentioned being user error... but I need to validate if the nut or screw (or both) have excessive wear... it just slides too much. I will document findings in my ownership thread.
 
Janderso said:
I contacted Sharp to price the tool required to adjust the backlash on my Sharp TMV mill. Would you believe $800 with shipping?!!!!
There is no access to measure the locking ring or the adjustment ring.
I ordered the rings in order to make the tool.
With the pipe and rings, I’m saving $650.
These mills are BP clones on steroids. Some components are completely different.
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hi, i am looking for a spec sheet on these nuts to be able to make the tool, does someone here have the dimensions and could possibly email them to me . the photos when i try to print come out blurry and cannot see the numbers. Thanks
 
Would this also work for Jet JTM-2??
Inquiring minds want to know!!
 
prpacheco said:
hi, i am looking for a spec sheet on these nuts to be able to make the tool, does someone here have the dimensions and could possibly email them to me . the photos when i try to print come out blurry and cannot see the numbers. Thanks
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Did you click on the photo to enlarge it? They're very legible on my screen.

GsT
 
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