That's a really good idea. Thank you for sharing the build process with us! If you don't mind my asking, why did you choose to leave the nose tapered rather than turning it down to a simpler-to-work-with cylindrical shape? I'm guessing either: 1. There wasn't enough material in the casting to allow cutting it straight or, 2. You wanted the taper to make it hold better, similar to the Morse taper in most drill presses. I just found your channel and am subscribing. I've often thought about potential ways to achieve an extremly steep pitch on my old Logan 955. So far, the leading candidate has been Clough42's electronic lead screw project, but I'm looking forward to watching your follow-up video on the method you used. Thanks again!
Yeah the casting was too thin to turn cylindrical. Honestly the effort I put into this (the long pitch gearing part anyway) would have been better spent implementing ELS. The only reason I didn't is because I have another lathe that is a resto-rod project I am turning into a full-blown CNC lathe. So in my mind, at the start, it didn't seem logical to spend time making this one sorta-CNC when a real CNC is in the pipeline. But the time I spent screwing around with different gearing and trying to math, was probably more than it would have taken to go ELS. And if I had installed ELS it would be there next time I need it and I wouldn't have to do all this over again.
@@wryanddry2266 yes but it would require an additional part to articulate the grinder in an additional axis. As shown, it can engage the workpiece only head-on, either radially or axial. A woodruff key would require tangential cutting. I am pretty sure I don't have the words to describe what the additional part would look like, sorry. I wish I could post pictures.
The lathe is unpowered. I have custom compound gearing between spindle and lead screw in order to hit that pitch (about 1.75 inches per rev AKA 0.57 TPI). I am driving the lead screw instead of the spindle and I can drive it as slow as I want with a hand crank. But in the video I was driving it with a cordless drill. I am making a separate video about this process. Putting that video together now.
Very nice job, Charles!!
Totally awesome idea for the boring bar holder.. I’m making one of these thank you so much for making this video !
Just found your channel and Subscribed. Nice work
Thanks! Subscribed to you as well. Looks like you're into the same kind of stuff I am.
Great job, I need one!
Looks like you have one similar
That's a really good idea. Thank you for sharing the build process with us!
If you don't mind my asking, why did you choose to leave the nose tapered rather than turning it down to a simpler-to-work-with cylindrical shape?
I'm guessing either:
1. There wasn't enough material in the casting to allow cutting it straight or,
2. You wanted the taper to make it hold better, similar to the Morse taper in most drill presses.
I just found your channel and am subscribing.
I've often thought about potential ways to achieve an extremly steep pitch on my old Logan 955. So far, the leading candidate has been Clough42's electronic lead screw project, but I'm looking forward to watching your follow-up video on the method you used.
Thanks again!
Yeah the casting was too thin to turn cylindrical. Honestly the effort I put into this (the long pitch gearing part anyway) would have been better spent implementing ELS. The only reason I didn't is because I have another lathe that is a resto-rod project I am turning into a full-blown CNC lathe. So in my mind, at the start, it didn't seem logical to spend time making this one sorta-CNC when a real CNC is in the pipeline. But the time I spent screwing around with different gearing and trying to math, was probably more than it would have taken to go ELS. And if I had installed ELS it would be there next time I need it and I wouldn't have to do all this over again.
Is there a way of chucking a tool, say a Woodruff cutter, onto the die grinder?
@@wryanddry2266 yes but it would require an additional part to articulate the grinder in an additional axis. As shown, it can engage the workpiece only head-on, either radially or axial. A woodruff key would require tangential cutting. I am pretty sure I don't have the words to describe what the additional part would look like, sorry. I wish I could post pictures.
nice idea
Your limiting factor is the lathe rotation cannot be slow enough to time cutting a proper pitch of your groove.
The lathe is unpowered. I have custom compound gearing between spindle and lead screw in order to hit that pitch (about 1.75 inches per rev AKA 0.57 TPI). I am driving the lead screw instead of the spindle and I can drive it as slow as I want with a hand crank. But in the video I was driving it with a cordless drill. I am making a separate video about this process. Putting that video together now.
He he. Yeah. Thanks