Lous Creek
New Member
Oh the bit goes on the flat cut / shiny side, I still have to cut the slot and drill and tap the holes just like any other tool holder. I just didn't have a way till tonight to mill the slot.
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Quick Change Tool Post QCTP
- Thread starter Janger
- Start date
Lous Creek
New Member
Much like the pic above, as you can see you can have 90 deg or 30 deg or what ever angle you choose to mill for your tool holder. The set screw that's parallel to the big hole is the height adjustment, it just rests on the bottom of the tool post where that large shoulder is/ Those cuts around the perimeter are indexing points. I didn't bother with the indexing feature.
Last edited:
Lous Creek
New Member
No that is a stock photo from another site, the first photo with the steel rule is my set up. Also yes I try to do all the work I can on my lathe even milling. I used my four jaw and simply centered it on the hole I wished to drill and then opened it up to 38mm with a boring bar. On my next holders I'll use a 1.25in hole saw to waste it out faster then bore it out to 38mm. Also that clamp arrangement should be super strong as its 38mm dia and an inch tall so it shouldn't be going anywhere. Best of all I had the scrap under the lathe bench and no dovetail cutter to buy.
Janger if you're having troubles with your tool post rotating under load try making a dedicated threaded hold down bar, I threaded a piece of 3/8 bar and welded a plate to the bottom for the anti turn feature. Also extend the hold down bolt well above your tallest turret, that's why I use coupling nuts to get lots of surface area on that screw. You can also try turning the bottom of your current tool holder with a decent recess so it resembles a ring and acts like a shoe, I can get a pic if need be.
Oh and as for blacking you can try flame blacking like they did in the old days, or just keep the parts well oiled.
Janger if you're having troubles with your tool post rotating under load try making a dedicated threaded hold down bar, I threaded a piece of 3/8 bar and welded a plate to the bottom for the anti turn feature. Also extend the hold down bolt well above your tallest turret, that's why I use coupling nuts to get lots of surface area on that screw. You can also try turning the bottom of your current tool holder with a decent recess so it resembles a ring and acts like a shoe, I can get a pic if need be.
Oh and as for blacking you can try flame blacking like they did in the old days, or just keep the parts well oiled.
Lous Creek
New Member
So here is a shot of the omni post getting the tool bit slot milled on the lathe. I would say that it is very stout once you get it dialed in, I say that because I didn't come aboard it at first and it swung obvious by the milling mistake you can see.
Side note you can see the homemade MT2 .375in collet in the spindle, I didn't have that tight enough either so it walked out but now I've got the reins. I had to bore out a coupling nut so I could tighten down my drawbar better.