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Recent content by Rick Finsta
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Threadmilling 4140 hardened steel
I caught this thread a little late, but I run a Harvey threadmill in 4140 at 44HRc (that is about as high as you can through harden up to 1.0" or so thick from what I've been told and these parts start from 1" thick material that has already been hardened) to make a 3/8"x24 thread in some repeat...- Rick Finsta
- Post #11
- Forum: General
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Scherr-Tumico Optical Comparator - ID and Manual Needed
I'm in SE Wisconsin but assumed I'd have to ship it.- Rick Finsta
- Post #9
- Forum: Metrology
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Scherr-Tumico Optical Comparator - ID and Manual Needed
So I just got gifted one of these and it is outfitted (retrofitted?) with an Ehrenreich Photo-Optical Industries Model 2-645P Digital Readout and Boeckler 9300-1 Digital Positioners. I was getting signal on one but not the other when I first plugged everything in, now neither is reading...- Rick Finsta
- Post #7
- Forum: Metrology
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New Machine Day! Sharp SV-2412
I sold this machine a few years back. Sharp should still have what you need.- Rick Finsta
- Post #40
- Forum: CNC Machining
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Brother Speedio 4th Axis Simultaneous Programming
Well I also discovered that I had messed up something in my post processor as well. I ended up rebuilding that with the most current base post from Autodesk and now I can run a lot faster in the standard DPM/FPM hybrid mode. I ended up just indexing for my highfeed roughing toolpath and that...- Rick Finsta
- Post #18
- Forum: CNC Machining
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Brother Speedio 4th Axis Simultaneous Programming
Bumping this for something I hadn't run into before. I'm getting feedrate alarms when my post processor spits out a linear (X) and Rotational (A) coordinate in the same line, with G01 and G94 active, and the feedrate is specified in DPM (which exceeds the IPM feedrate maximum of 787 in this...- Rick Finsta
- Post #15
- Forum: CNC Machining
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Probe Extension for Mitutoyo Surftest 212
Thanks, Bob. Looks like they are long obsolete from Mitutoyo. I also reached out to my normal metrology repair vendors and they all said the same. Time to take a look at making my own as jccaclimber suggests.- Rick Finsta
- Post #4
- Forum: Metrology
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Probe Extension for Mitutoyo Surftest 212
I can't seem to find the part number for a older Mitutoyo Surftest 212 probe extension cable. This is the round connector on both ends with 6 pins (not the 12 pin data output cable) so you can mount the probe on a height gauge for easy use. We had one at the old shop but I can't get a hold of...- Rick Finsta
- Thread
- Replies: 3
- Forum: Metrology
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Genos 560 tapping RPM
I've programmed small taps at max speed (5k) on my 560 but never watched them or paid attention to cycle time or actual RPM. When I tap I hit the button and walk away so I won't hear the crunch. LOL- Rick Finsta
- Post #9
- Forum: Okuma
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Surfacing AN sealing taper?
I have surfaced them before but I do plenty of race car stuff so I just ended up going to Scientific Cutting Tools and getting the appropriate port tools and threadmills. They pay for themselves pretty quickly doing custom one off type stuff for guys doing things the right way. For a guy not...- Rick Finsta
- Post #9
- Forum: CNC Machining
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Insert for deeper 0.062 grooves?
I was going to suggest the Sandvik MACx stuff. I use the MAC series for grooving here and I am very happy with them. Cost is reasonable once you have the holder and you can find them new on eBay for a few hundred bucks. I use the Swiss wedge quick change units here even though I don't have a...- Rick Finsta
- Post #11
- Forum: CNC Machining
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Buying first machine. Questions about Speedio vs. Okuma.
You can carry over losses but it generally doesn't make sense for an LLC that is filing on a 1040 Schedule C in the first few years. Then, you want to retain as much depreciation as possible so when you start making money you can offset it to stay in a lower tax bracket. Corporate tax brackets...- Rick Finsta
- Post #336
- Forum: CNC Machining
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Brother tool wash disable
G100 is a canned cycle. MDI doesn't allow sub calls but will perform a G100.- Rick Finsta
- Post #8
- Forum: CNC Machining
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Speeds and feeds for plutonium
You know, I'm thinking this through and I can't come up with a reason that this coolant would cease being a used oil and need handling under RCRA Part C. Every once in a while I would run into stuff like this in the waste industry where I'd have to convince the boss that "no it isn't illegal...- Rick Finsta
- Post #30
- Forum: CNC Machining
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Matsuura spindles
I've heard of these issues on the 15k spindles over the last few months as I've been poking around a bit. I had heard of the problems here on PM but initially couldn't find a shop that actually had the problems themselves. The one I bought had the 20k greased spindle and I spoke with one of...- Rick Finsta
- Post #13
- Forum: CNC Machining