Slip Guages, and Setting a Quick Change Tool Post to Centre Height

This topic has 12 replies, 9 voices, and was last updated 27 February 2017 at 16:39 by Howard Lewis.

Viewing 13 posts - 1 through 13 (of 13 total)

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26 February 2017 at 23:15 #286158
David Cambridge
Participant
@davidcambridge45658
I’ve bought myself a set of slip gauges from ebay, so I’ve been entertaining myself making another YouTube video, using the gauges to measure lathe centre height, and making myself a reference bar for setting QCTP centre height.

David
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26 February 2017 at 23:15 #8582
David Cambridge
Participant
@davidcambridge45658
26 February 2017 at 23:42 #286160
Nick Hulme
Participant
@nickhulme30114
I think gauges should be slid and not snapped apart?
26 February 2017 at 23:45 #286162
Emgee
Participant
@emgee
Posted by Nick Hulme on 26/02/2017 23:42:03:

I think gauges should be slid and not snapped apart?

plus 1 for that.

Emgee
27 February 2017 at 00:07 #286163
David Cambridge
Participant
@davidcambridge45658
Which is the great thing about this forum, plenty of helpful people and plenty to learn. Suitable annotation added to video! Thanks Chaps

David
27 February 2017 at 08:16 #286181
Ian S C
Participant
@iansc
Slip gauges should be wrung together, and slid apart.

Ian S C
27 February 2017 at 08:58 #286185
Nick Hulme
Participant
@nickhulme30114
That looks like a nice set, what brand are they?

Now you have gauge blocks you can shop for an accessory set

– Nick
27 February 2017 at 09:03 #286187
Neil Lickfold
Participant
@neillickfold44316
The most important part about slip gauges is keeping any form of abrasive off them. To clean them, use only materials that can be used to clean glass lenses without scratching. A lot of paper towels are actually very abrasive and will do damage to the slip gauge surfaces. In home workshops, slip gauge sets can be just so handy to have at times for so many things.

Neil
27 February 2017 at 09:09 #286189
Curtis Rutter
Participant
@curtisrutter61973
For setting centre height I've always just measured up against dead centre on the tailstock (as long as the lathe has been set up accurately) only takes a few seconds each time and has always been spot on.
27 February 2017 at 09:47 #286196
Vic
Participant
@vic
I made a gauge for tool height setting. I mostly only use it for my Tangential tool now though as my carbide tooling has been permanently set by gluing a slips to the bottom of the tool holder.
27 February 2017 at 09:49 #286197
Vic
Participant
@vic
27 February 2017 at 10:26 #286208
Brian H
Participant
@brianh50089
I enjoyed the slip gauge video, apart from the annoying background noise that makes it difficult to hear, especially if ones hearing is not 100%

Brian
27 February 2017 at 16:39 #286312
Howard Lewis
Participant
@howardlewis46836
Two comments:

Boxes of slip gauges (Matrix – Coventry) used to contain a piece of chamois leather with which to wipe the slips,. (Paper towels can be abrasive, and we are dealing with items mirror finished to better than a millionth of an inch.

At the Sentinel Works of Rolls Royce Oil Engine Division, our ex Sentinel Instructors advocated the clean ball of the thumb as an alternative, before wringing the slips together, or separation by rotating them.

They also drummed in to us ALWAYS to use the Protective slips on each side.

Howard
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