Lead Screw backlash adjusting tool- DIY

[Janderso]

For those that need these specs.
16 TPI

 

[Old96er]

Thanks so much!

 

[Janderso]

Thanks so much!

Looks like 16 TPI

 

[Old96er]

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!





**Also PSA, Don't ever weld something after using chlorinated brake cleaner, it can create phosgene gas which will seriously maim or kill you!

 

[wachuko]

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…

 

[OTmachine]

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…

Need to use backlash eliminator when climb milling. HTH

 

[wachuko]

Need to use backlash eliminator when climb milling. HTH

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.

 

[prpacheco]

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.

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

 

[finsruskw]

Would this also work for Jet JTM-2??
Inquiring minds want to know!!

 

[GeneT45]

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

Did you click on the photo to enlarge it? They're very legible on my screen.

GsT