Hi
I have owned my Myford ML7 for about 5 years now and have got to know the machine pretty well. Up to now I haven't bothered (or needed) to do any screw cutting. The set up that the lathe came with gives a fairly fast lead screw speed, I'm sure of the exact speed, but too fast for a power feed when turning.Over the weekend I decided to have a go at getting my head around setting up the gears. I have the book THE MYFORD SERIES 7 BY IAN BRADLEY so sat down and had a good read. Now I must admit that maths is not my strong point but fortunately the book has a clear explanation and decent drawings. More importantly it has tables already worked out for you up to 120tpi and slightly beyond which gives feed per revolution of .0037 That should do it I thought so out in the workshop I dug out the box of gears that came with the lathe only to find they won't fit, they are not Myford
A quick order to RDG Tools (usual disclaimer) on Sunday saw me with 6 new gears arrive on Tuesday, good service that. Set the lathe up tonight and cut a bit of scrap steel with the power feed. Its a great improvement on what it was but I feel the feed is still not fine enough. Here's the question, are there any Myford owners out there who know of a set up that would suit, i.e. much slower feed or someone who could work the maths for me.
Cheers
Rich
I have owned my Myford ML7 for about 5 years now and have got to know the machine pretty well. Up to now I haven't bothered (or needed) to do any screw cutting. The set up that the lathe came with gives a fairly fast lead screw speed, I'm sure of the exact speed, but too fast for a power feed when turning.Over the weekend I decided to have a go at getting my head around setting up the gears. I have the book THE MYFORD SERIES 7 BY IAN BRADLEY so sat down and had a good read. Now I must admit that maths is not my strong point but fortunately the book has a clear explanation and decent drawings. More importantly it has tables already worked out for you up to 120tpi and slightly beyond which gives feed per revolution of .0037 That should do it I thought so out in the workshop I dug out the box of gears that came with the lathe only to find they won't fit, they are not Myford
A quick order to RDG Tools (usual disclaimer) on Sunday saw me with 6 new gears arrive on Tuesday, good service that. Set the lathe up tonight and cut a bit of scrap steel with the power feed. Its a great improvement on what it was but I feel the feed is still not fine enough. Here's the question, are there any Myford owners out there who know of a set up that would suit, i.e. much slower feed or someone who could work the maths for me.
Cheers
Rich