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Myford super 7 Positioning servo's on Spindle and main infeed

Complete rebuild and conversion.

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Andrew Davies 416/01/2019 13:23:05
49 forum posts
56 photos

A little late in the day, but I have had to get the bottom saddle ground. As the main bed was re ground it has dropped the saddle with respect to the under side of the bed. Due to this when you clamp up the bottom plate onto the saddle there is movement between the saddle and bed. I am also going to rind the saddle face that moves on the bed.

I have over ground the sable and will set up with some 0.02mm shim.


Andrew Davies 416/01/2019 13:29:00
49 forum posts
56 photos

After a lot of research I have come up with a cost effective a belt for the for the cutter. This works with the existing Sherline pulley. 4 MM Green Polyurethane Round drive belting

This comes in open strips and is welded with a small amount of heat. Done test and the joint is very strong.


Edited By Andrew Davies 4 on 16/01/2019 13:32:32

Edited By Andrew Davies 4 on 16/01/2019 13:38:23

Andrew Davies 416/01/2019 17:09:30
49 forum posts
56 photos

Shims cut for bottom saddle all from 0.02mm brass.

Waiting for saddle to come back. Not sure how many I will need. Easily cut with a shard blade.

Not sure of the width, I will wait for the saddle to come back before I cut.


Edited By Andrew Davies 4 on 16/01/2019 17:13:41

Edited By Andrew Davies 4 on 16/01/2019 17:14:57

Andrew Davies 417/01/2019 17:18:18
49 forum posts
56 photos
Bottom saddle dead stop ground away to fit around new ball screw bearing mount.
This is adjustable and is a mechanical stop to stop you hitting the tooling and damaging it.
Andrew Davies 420/01/2019 12:04:53
49 forum posts
56 photos

Someone has asked how I did the lettering in yellow. This is simply kitchen towel, rolled up, tapped and a flat pushed on it. Sooooooo easy. Needs about 3 coatings.

Andrew Davies 431/01/2019 14:24:10
49 forum posts
56 photos

Timing belt for spindle just arrived, fitted this morning.

Andrew Davies 431/01/2019 14:34:29
49 forum posts
56 photos

Got a 3/16th key for the shreline head stock. Sherline stated 3/16th but this is too big.

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