Split block QCTP

[AdrianRParticipant @adrianr18614]

I know the merits of plunger vs wedge have been gone over before, but I found this QCTP on ebay.

It seems such a simple design, and easy to make but I can't decide if would lose too much rigidity?

Does anyone have experience of this type?

In the advert it is described as a Tes Toolpost, what does TES mean?

Edited By AdrianR on 09/05/2021 12:00:35

[AdrianRParticipant @adrianr18614]

[Paul LousickParticipant @paullousick59116]

I have not used one of these but it should be fairly rigid when the clamp screw on the side is tightened to close the dovetail.

An internet search has lots of similar toolholders using a wedge screw to clamp tools instead of the slot. Details to make your own shown here. **LINK**

This version with the slot is a simpler version and should be just as good.

Paul

Edited By Paul Lousick on 09/05/2021 12:35:09

[not done it yetParticipant @notdoneityet]

They are OK, but just not so quick as the usual types.

[Dave WoottonParticipant @davewootton]

Adrian

If you wish to make your own QC toolpost its worth having a look at the design by the late John Stevenson, very rigid and not much more work to make than the one pictured. I made two sets (on the night shift!) for friends who have Drummond M lathes, even unhardened they are still in regular use many years later. The drawings are available free on the net and can be resized to suit most machines, Just search Stevenson toolpost.

Dave

[AdrianRParticipant @adrianr18614]

Thanks for the replies guys, the John Stevenson design looks interesting too.

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