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Split block QCTP

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AdrianR	09/05/2021 11:47:21
613 forum posts 39 photos	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
Paul Lousick	09/05/2021 12:33:46
2276 forum posts 801 photos	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 yet	09/05/2021 13:09:49
7517 forum posts 20 photos	They are OK, but just not so quick as the usual types.
Dave Wootton	10/05/2021 11:16:00
505 forum posts 99 photos	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
AdrianR	10/05/2021 19:36:49
613 forum posts 39 photos	Thanks for the replies guys, the John Stevenson design looks interesting too.

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