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Re: Unimat 3 Headstock Pulley Plastic & Aluminium (Toothed belt caution)


 

Hello:


On Sun, Aug 7, 2022 at 06:50 PM, Bob T wrote:
... normal lead screw is LH ...
Yes.
I'm still waiting for my M8x1 LH tap which would seem to have been lost in the mail.

... the method that I went for ... ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?????????????????????????????????????????????????????????????? ... requires a RH thread on the lead screw.
Now I get it.

... have 4 lead screws two each LH and RH thread metric and imperial ... ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ??????????? ... can do almost any thread. ?
I have both the thread cutting gears (150 250) and the lathe threading attachment (150 250) with a 1.0mm follower.
They came with the U3 package when I purchased it but have not had a chance to use either of them.

For the tipe of work I have always done, I am very comfortable using taps and dies.
And found the lathe threading attachment cumbersome/complicated to set up.

The thread cutting gears attachment seems to be a much better option in case I need to cut single point threads.
At the? moment I am still in the process of setting up my work space and getting the tooling I need to actually be able to make the tools I need.? 8^¡ã

My present problem is reducing the carrier feed backlash which is why I was interested in Clive's modifications.

Thank you very much for your input.

Best regards,

JHM

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