Myford ELS modification

[Geoff RogersParticipant @geoffrogers81118]

hi all

I have recently fitted my Myford Super 7 (large bore) with a Rocketonics ELS package.

Fairly straightforward and most useful.

with thanks to Dave Senior regarding the emergency stop set.

[John HaineParticipant @johnhaine32865]

Nice. Now you could go full CNC. Though a ball screw on the X axis would help.

[Geoff RogersParticipant @geoffrogers81118]

thank you John,

ball screws would icing on the cake, but are a job too far at the moment.

I am finding the set up, using the existing leadscrew and cross slide screw, good enough.

main purpose of fitting the equipment is screw cutting and tapers.

[David SeniorParticipant @davidsenior29320]

I hope you find it as useful as I do with my Raglan installation. It is a joy to use, and I keep finding other aspects I had never considered.

For instance, last week I needed to wind some springs for the atmospheric inlet valves on an 1899 Panhard & Levassor car that I help out with at our local museum. I wasn’t exactly sure what I needed, so I played! 1mm piano wire, electronic control of the feed per rev, manual handle to turn the spindle. Start with 3 turns at 1mm pitch to give a good close coiled start, then 10 turns at 4.0mm pitch, then 3 more turns at 1mm pitch again. Clip off the excess coils, and test it. If required, try another with, say, 10 turns at 3.7mm pitch. Dead easy to change the pitch to whatever you want just by twiddling a knob.

 

[BazyleParticipant @bazyle]

Probably helpful for someone if you could say what size steppers and voltages you are using for x & Y, and reduction ratios as you are using belt drive.

[DellParticipant @dell]

I have it on my Myford ML10 mainly because I struggle holding handles for any length of time due to gout in both hands & anyway I would struggle to do an elliptical taper by hand.

[Geoff RogersParticipant @geoffrogers81118]

one thing I really like is that when an operation is set up, it can be started and left to it.  Means I can go and do something else!!

A real boon when cutting internal threads and blind boring.

Dell – the elliptical taper looks good and as you say probably not achievable (and certainly not repeatable) without the CNC set up.

Bazyle – for information on the stepper motors etc it would be best to the Rocketronics web site (https://www.rocketronics.de).  They provide a variety of packages, depending on the lathe size (by weight).  Usual disclaimer.

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