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- Thread starter notqwik
- Start date
- Joined
- Nov 16, 2012
- Messages
- 5,596
Spinning at 200+ RPMs means a very vast disengage of the halfnut lever; otherwise, the shoulder would get over-run. I thought about cutting from left to right in reverse and on the backside but the problem with that is the shoulder is only 45 thou wide and if I had a false start on the lever engage, there would be no time to abort and the threads would get ruined. Going from right to left was tricky enough with only 45 thou stopping space. This took 5 passes and a spring pass. Had to take light cuts because the SFMs were so low on a narrow shaft. BTW: The threads are 16.5 thou deep and they mic'd out to spec.
In the picture there appears to be a warp in the threads -that's just the overhead light reflection and the digital camera picked it up funny. They look and feel real nice though...
Ray
EDIT: BTW, about 2-3 times a week, I get broken parts like this and repair or re-make them. It's not a big deal or hard job but, most of the stuff I get is at least 4-5 times bigger with much coarser threads. Here was a case though where I really could have used a much faster lathe. I pushed mine up to 2000 RPM for the small diameters and still struggled to keep the finish acceptable... There we have it, now I need one of those new production HLVs...
In the picture there appears to be a warp in the threads -that's just the overhead light reflection and the digital camera picked it up funny. They look and feel real nice though...
Ray
EDIT: BTW, about 2-3 times a week, I get broken parts like this and repair or re-make them. It's not a big deal or hard job but, most of the stuff I get is at least 4-5 times bigger with much coarser threads. Here was a case though where I really could have used a much faster lathe. I pushed mine up to 2000 RPM for the small diameters and still struggled to keep the finish acceptable... There we have it, now I need one of those new production HLVs...
- Joined
- Nov 16, 2012
- Messages
- 5,596
Here's the magic secret to cutting a wudroof slot. -Not much to it. Just a plunge with the proper size cutter. Of course, putting it in the right position is another matter. For that, you need to measure, and measure, and measure -and take the plunge.
Out with the old, in with the new... All done. I'll put it in the mail tomorrow...
Ray
Out with the old, in with the new... All done. I'll put it in the mail tomorrow...
Ray
- Joined
- Aug 5, 2013
- Messages
- 262
- Joined
- Nov 16, 2012
- Messages
- 5,596
Actually, nothing comes for free... My request to all the folks whom I've made parts for here (at least a dozen or more) is that they make a small contribution to the web site. I don't specify an amount but I'm pretty sure the minimum donation is 5 bucks... Also, I ask that folks pay for postage or any materials that are "substantive" and I don't up-charge on materials. Shop drops are free and in this case, the stick of metal was laying on my lathe bench for about a month -so that qualifies as free shop drops... A touch of weld is free but I do ask a few bucks if I'm running Argon for more than 10-15 minutes.
Ray
Ray