Tamra
The lathe is a basic 7 x 12 mini lathe.
Converted with stepper motors on the Z axis (saddle) and X Cross slide.
The lathe uses a system called ELS (Electronic Lead Screw) now renamed RELS (Russian ELS) which is not full on CNC.
Basically the steppers are connected to a control box with a LCD display and select buttons,
By paging through the various screens it?s possible to cut any pitch of thread,?
be it internal/external, and select either manual or automatic (meaning hands free) machining.
Any angular tapers including Morse Tapers pre loaded into the control.
All is Arduino based driven, and new any additions needed, for Example I needed to cut a 0.45 mm pitch screw, this is?
easily added to the stored library in the control box.
Our good friend Richard UK (moderator) was the mastermind of the RELS and I know he is busily working on a newer version?
to be evaluated soon.?
I am not electronic wise savvy, but I cal always help in the mechanical end of a mini lathe digital conversion.
Printer rods, basically a typical mild steel, chrome plated.Very easy to machine, produces good finishes, concentric, and
sizes can range from? 2 mm dia up to 8 mm dia. within 0.01 mm of true size.
if you see any old printers that have been discarded, I suggest you strip down for at least the rods.
I use printer rod frequently to make instrument pivot screws.
My error Elkhart Indiana.
Conn was a very famous name in the US for musical instruments, Selmer again was one of the best makers in Paris France.
They got together I think in 1980?s to form an alliance, possibly more of a commercial deal than anything else.
I have owned both Conn and Selmer saxophones , totally different tones, it?s to do with the thickness of brass sheet they use during manufacture.
I have been repairing be it part time instruments for over 25 years, most challenging is the soprano saxophone,?
a lot of keys, pads, springs etc etc in a small area. I always take photos during repair, just in case I cannot remember how
it all goes back together. I have been lucky so far, LOL but I play most brass and woodwind instruments so I test?
after repairs before I pass back to the customer.
Hope of interest
John
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John
John Lindo