Member postings for Jeremy Upton

Thanks everybody for their input, I think I may have gleaned my answer from all the responses and some interesting info from those who have seen them cut firsthand.

I don't think posting the photos will glean much information really, You need to see them in the flesh and compare to good gears. The ones purchased from ebay 99% sure are genuine, looked identical to my existing myford ones, same machining marks, casting same etc.

I was also thinking about skimming the O/D on the worst gear as a quick fix but on closer inspection the worst gears have lost/flattened profile on the teeth. I think the final decision will to buy one or two new gears from RDG to replace the worst gears. Also on a side note the bore of the gears are not particularly accurate anyway which limits the accuracy you can set the mesh.

Thanks again for all your input and responses.

Thanks for the responses so far. I understand the "mesh" is not overly important for thread cutting and am familiar with the principles etc. Some of the gears purchased will also be used for power feed. A few of the gears out of the set bought on ebay are so worn that they bottom out on the root of the gear and still give significant backlash, so can't really adjust the mesh/clearance. Instinct is not to use a worn gear with my existing "good" gears.

My thought process was that people seem to hanker after the original/vintage Myford gears and I wondered why or what the advantage was.

Also I was questioning the quality of the original Myford gears, whether there was any significant variation in quality and also the quality compared to replacement ones offered by RDG.

Thanks.

Hi all, first post on here, albeit been lurking for a while.

I have have a Myford ML7R which when purchased did not come with a full set of standard gears. Having managed most of my threading up to this point with taps and dies. I have a couple of projects in the pipeline which will require me to threadcut the components. I have a few questions about sourcing the gears, as I purchased a used genuine vintage Myford set off an auction site only to find nearly half of them appear to have a lot of wear/loose mesh.

Anyhow, here are my questions.

1. Am I correct in assuming genuine ML7 Gears are cast steel not hardened?

2. RDG stock replacement gears, they look similar to "new" Myford ones without the paint, probably machined from bar not cast. Has anyone got experience of these?

3. Any advantage using genuine/vintage ML7 gears?

4. How accurate are the genuine/vintage gears cut, are they pretty much always spot on or do they vary? Wondering with this used set I bought is just the "norm" for old Myford gears.

Thanks in advance to anyone who can answer my questions.