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Member postings for Simon Grist

Here is a list of all the postings Simon Grist has made in our forums. Click on a thread name to jump to the thread.

Thread: Colchester student feed issue
03/09/2019 09:39:32
Posted by Ian Parkin on 03/09/2019 09:08:32:

The feed shaft will only rotate if the gearbox is set

the only one that doesn’t matter is the metric/imperial selector

and forward /reverse lever needs to be set to one or the other

but the feed shaft will /should always rotate if the above is done

Sorry just reread your post it will only run when the main spindle is turning

motor turning may have a clutch

Edited By Ian Parkin on 03/09/2019 09:10:39

It doesn't have a clutch, so just to be clear, if the motor/chuck is turning, so should the feed shaft?

It all seems ok in the apron, no worn gears or anything, I think I need to assemble everything properly and then see if it all works. for some reason the interface between the feedshaft and the cross feed was not meshing properly.

03/09/2019 07:44:03


I am in London in the UK, I got a diagram from the Colchester spares company and have now stripped the apt and the 2 feed shafts, it wasn't too mucky but the feed half nut is very worn. Just to be clear, should the feedshaft, the one with the keyway in it be turning all the time the motor is running? Anything I should look out for in the apron that would stop the power cross fed? I will post some pics in due course. Thanks

28/08/2019 13:31:34

Hi All

I have just joined the forum as I recently bought a Mk1 (1953/54) Imperial Colchester Student. This will probably be the first of many basic question posts!

I have replaced the motor and added a VFD but I am having trouble engaging the sliding/surfacing feed, it will go into sliding feed only moving away from the chuck and when engaged in surfacing it just clicks and feels like something is worn or misaligned.

Does anyone have a diagram of this type of apron? I can only find the later plunger type.

The other issue I have is that the levers on top that change the gears seem to easily drop out of engagement, even under no load, is there something I can adjust to fix that?

Thanks in advance for any help.


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