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BXA QCTP
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09-03-2012, 04:30 AM
Don't worry Steve as soon as you move through that stage you'll forget that you ever forgot anything and everything'll be nice again.
Regards Rick
Whatever it is, do it today, Tomorrow may not be an option and regret outlasts fatigue.
09-03-2012, 07:21 AM
Thanx,...I think.
Busy Bee 12-36 lathe, Busy Bee Mill drill, Busy Bee 4x6 bandsaw, Homemade 9x17 bandsaw, Ad infinitum.
09-03-2012, 09:31 AM
(09-02-2012, 07:38 PM)stevec Wrote: The only problem I see with your nifty handle Dave, is that, in my befuddled state I'll free up the wrong lever in midst of a job! Steve, Yea, I've done that, mostly when I'm changing tools    DaveH
On the subject, I decided that the knurling tool/toolholders that came with both my piston and wedge type QCTPs would better serve as toolholders, so I cut off the knurlers.
The bandsaw didn't protest too much so I figured I could machine the groove and drill and tap for the setscrews. The HSS endmill had more trouble than the bandsaw so I used a carbide endmill on the second one and it went better (and faster) Drilling and taping for the 10mm setscrews over the newly opened up part of the tool groove went fairly well. I pilot drilled with a small drill then finished with the letter R drill for the 10mm tap. I had to go to a harger tap holder to get the torque to turn the dull tap through the tough steel. There was some squeeking and jerking and I really feared the dull tap might break. I'm ordering a new tap for the second toolholder. Here's the finished shot of the first modified toolholder ready to go. If I could get the $9.00 holders from Shars up here for that price it would definitely be worth it. I probably spent 2 hours on the modifications and still have yet to tap the second one. Maybe making more toolholders out of softer steel will go faster, but for now I have 2 more holders and plan to use the knurls for a scissors type knurling tool.
Busy Bee 12-36 lathe, Busy Bee Mill drill, Busy Bee 4x6 bandsaw, Homemade 9x17 bandsaw, Ad infinitum.
12-30-2012, 10:25 AM
That's a good idea Steve. I have no use for the knurling tool that came with my QCTP either. I plan on making the cut knurling tool that was in one of the metalworking magazines.
Ed
12-30-2012, 10:54 AM
12-30-2012, 02:17 PM
nice mod Steve, but what if you want to knurl something. Was going to post it and forgot, Canadian tire had a set of taps and dies on a Christmas. 4-40 to 1/2 in fine and coarse and the corresponding metric, at 75% off. Something like 30 dollars. Not Butterfield quality but good to get you out of a jam, actually look reasonable. Wonder how the lifetime warranty works on these, wear or breakage?
Free advice is worth exactly what you payed for it.
Greg
Greg, ole bud, I've been knurling for a half century! Back when I got my ole Atlas flat bed 10X36, it came with one (BTW that ole lathe was a lot older than me when I got it).
So, if a knurl I need, a knurl I can do. I'd be curious to see if you can thread anything tougher than aged Parmesan cheese with those Crappy Tire threading sets. For thirty bucks I'd have bought a bottle of cheap Scotch (nuthin' to do with taps and dies, just showing my priorities).
Busy Bee 12-36 lathe, Busy Bee Mill drill, Busy Bee 4x6 bandsaw, Homemade 9x17 bandsaw, Ad infinitum.
I buy all my CA-400 size tool holder blocks from Jeff at Tools4Cheap.net because they're only a couple of dollars more than Shars of CDCO, better quality and he's a great guy. Darren (Mayhem) and I have met him and he's really worth giving him the business.
As for the two-roll knurlers, I have one made by Dorian. It takes a LOT of pressure to get a good knurl from it, so I'm thinking of making my own that would have opposing knurl rolls. The one in our "Projects" section is good, though I want one that has up-down travel on the adjusters as that's the way a good one I used to use at one of my previous jobs worked. |
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