Thread: steady rest fun

Nice Job. I am going to play with my my steadies soon. What RPM were you using for this job? How often did you have to lube the steadies?

Brendan

Thanks .... Having done one, at least I know I can make more ACME cross feed screws if the need arises . Next thing is, making the bronze ACME nuts to suit the screws I must buy some of the proper 12l14 steel, instead of using unknown grade stuff salvaged from old printers MIKE

Originally Posted by 19brendan81

Nice Job. I am going to play with my my steadies soon. What RPM were you using for this job? How often did you have to lube the steadies?

Brendan

Brendan, I was using 60 rpm . I lubed both the screw and the steady often ( I used neatsfoot oil on the thread ) as I was cutting it . One thing I found out , is that the fingers on the steady need to be centred on the shaft accurately , otherwise problems will arise . The 8 tpi ACME cutters I bought on EBAY , not sure but I think they are carbide , they do work OK despite the low rpm. MIKE

I tried an acme nut once. Used ali for practice. Bit more forgiving. It sure focuses the mind into a small space. Have fun.

Thanks Mike.

I did wonder if the carbide would cut well at those RPMs...my carbide threading inserts arent real flash at subsonic speeds. Obviously yours worked well though as the finished result looks good.

How do you center the fingers accurately?

Brendan

Originally Posted by 19brendan81

Thanks Mike.

I did wonder if the carbide would cut well at those RPMs...my carbide threading inserts arent real flash at subsonic speeds. Obviously yours worked well though as the finished result looks good.

How do you center the fingers accurately?

Brendan

Brendan , yes I was surprised at the finish I got too . With the steady fingers > If you draw a line from the centre of the fingers ..you want that line to intersect the centre of your work piece shaft . ... Hope that explains it . I have just taught myself from trial and error