Denham Lathe crash :>(

[Roger ClarkParticipant @rogerclark]

Posted by John MC on 02/08/2023 13:49:44:

Good to see that repair has been arranged.

have you checked for any other damage. Distorted gear teeth? What would trouble me most about this sort of mishap is distortion of the bed, not unkown with this sort of crash.

Easy to check with a precision spirit level. If you don't have such a thing then see if the lathe still turns parallel when its up and running again.

All checked and ok, these lathes are built like a tank and very unlikely to twist under stress.

Roger

[Howard LewisParticipant @howardlewis46836]

Well Done all!

Glad that friendshipo still holds good in theThree Counties, to slove your problem

Howard (ex Herefordian ).

[Roger ClarkParticipant @rogerclark]

Posted by Howard Lewis on 02/08/2023 17:12:09:

Well Done all!

Glad that friendshipo still holds good in theThree Counties, to slove your problem

Howard (ex Herefordian ).

ex Herefordian?

You traitor

[Howard LewisParticipant @howardlewis46836]

Had to leave for Shrewsbury to be an Apprentice at Sentinel Works..

Still return very occasionally to volunteer at The WaterWorks Museum, so still love the old place.

Changed a lot since I left, They had only been talking about the new river bridge since before I was born, so it was good to see it!

You can take the man out of the City, etc

Howard

[Roger ClarkParticipant @rogerclark]

Posted by Howard Lewis on 02/08/2023 18:25:54:

Had to leave for Shrewsbury to be an Apprentice at Sentinel Works..

Still return very occasionally to volunteer at The WaterWorks Museum, so still love the old place.

Changed a lot since I left, They had only been talking about the new river bridge since before I was born, so it was good to see it!

You can take the man out of the City, etc

Howard

City still desperately needs a bypass though to relieve the traffic on the Ross – Leominster route

Roger

[Howard LewisParticipant @howardlewis46836]

Hi Roger,

Yes turning across from Victoria St into Barton Rd can be a nightmare.

3 hour drive; 2 hours to worcester than an hours hard drive for the last 30 odd miles!

But good company and things at the Museum.

Never manage to find enough opportunity to pop over to next door to HSME. Always welcomed when I do.

Howard

[old martParticipant @oldmart]

Keep us posted on the progress of your repairs please.

[Roger ClarkParticipant @rogerclark]

Will do, sahould be collecting a newly made mandril tomorrow morning. I will need to do a couple of 3/16" keyways and then it's the rebuild.

Roger

[Howard LewisParticipant @howardlewis46836]

Spolendid, a successful outcome is within grasp

Howard

[Roger ClarkParticipant @rogerclark]

Collected replacement mandril from Simon

And milled the keyways out

Strangly the key on the outside of the head was quite slack in the change wheels so I'm making up a replacement key to fit.

Roger

[Howard LewisParticipant @howardlewis46836]

Hurrah!

Before long, the wheels will, literally, be turning again!

A really good outcome.

Howard

[Roger ClarkParticipant @rogerclark]

Ok so reassembly starts

Mandril inserted into orifice

Chuck spindle inserted feeding it through the main gears and gear on left that meshes with the Mandril

Chuck spindle re-inserted feeding it through the main gears and gear on left that meshes with the Mandril the right way round

Front bearing retaining cap fitted

cont. in next post

Roger

[Roger ClarkParticipant @rogerclark]

Cont. from last post

Top on to avoid bits falling in.

Fit cover for the belt pulleys and clutch spring, this is a real PITA as there is minimal room where the cover has to be held in one hand and the belts wrangled over the clutch spring and the double pulley especially as it's a heavy casting.

Then it's the change wheel train and support plates to fit and adjust, I did run the lathe berforhand to check correct meshing and change of speeds, and then run up the gearbox and check all speeds and leadscrew and feed, all works as expected.

Just need to fit the covers and we're back in operation

Roger

[Howard LewisParticipant @howardlewis46836]

Marvellous!

What a feeling of satisfaction!

Howard

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