Search found 305 matches
- Sun Jul 02, 2023 11:29 pm
- Forum: General Discussion
- Topic: Taps and Dies - balance between cost and quality
- Replies: 22
- Views: 2707
Re: Taps and Dies - balance between cost and quality
My preference for taps these days is OSG (Japan and US) and YG (aka "YG1", Korea). Since finding spiral flute taps, I rarely use a normal hand tap any longer, unless chasing a thread or I have nothing else to use. YG1 10-32 spiral 3 flute - $12 YG1 10-32 taper hand tap - $4 OSG 10-32 spira...
- Sat Jun 17, 2023 12:29 am
- Forum: General Discussion
- Topic: Mill wiring help, kind of specific
- Replies: 11
- Views: 2231
Re: Mill wiring help, kind of specific
V1 ( # 11 ) is connected to a contactor ( KM2 reverse spindle ) V2 ( #9 ) also goes to the KM2 contactor U2 ( #10 ) to KM2 U1 ( #12 ) should be connected to something, in the drawing and actual it's empty, and I don't see any stray wire. U1 (#12) is connected to something. If you look at the pic an...
- Fri Jun 16, 2023 12:00 pm
- Forum: General Discussion
- Topic: Mill wiring help, kind of specific
- Replies: 11
- Views: 2231
Re: Mill wiring help, kind of specific
I don't have a PM932... but I note a couple things odd about your wiring and diagram. One, it appears in your drawing that either the AC 220V IN or the X Power Feed is reversed. In the picture terminals 15&16 are bonded together with a shorting strap. There is an insulating divider and then term...
- Thu May 18, 2023 10:03 pm
- Forum: Milling Machines
- Topic: Carbide insert pricing
- Replies: 3
- Views: 1809
Re: Carbide insert pricing
I think your part number has an extra zero in it. Should be OFER070405TN-M16 F40M That's a pretty big insert for most home shops, almost 3/4" circle, recommended feed per tooth is 0.0125". Seems to be used in 2.5-4" facemills with 4-8 inserts each. Price is fair. If I had a mill that ...
- Sun Mar 19, 2023 11:37 pm
- Forum: General Discussion
- Topic: Mystery Tool
- Replies: 6
- Views: 931
Re: Mystery Tool
Looks like a wire wrap driver and a stripping tool to me, not sure what the third block is. Take a piece of wire-wrap wire, push it down into the slotted tool, and pull to strip the insulation off 1/4-1/2" from the end. Place the short end , now stripped, into the hole at the end of the wrappin...
- Sat Mar 11, 2023 6:37 pm
- Forum: General Discussion
- Topic: An electronics question
- Replies: 5
- Views: 895
Re: An electronics question
Ah yes.. .a PWM circuit, much better than just trying to run the currently directly thru a potentiometer, what I was expecting based on the completely bare backside of the board and no apparent thru-holes or components. And yes a PWM circuit is a type of chopper circuit that turns on and off very ra...
- Sat Mar 11, 2023 2:49 am
- Forum: General Discussion
- Topic: An electronics question
- Replies: 5
- Views: 895
Re: An electronics question
Well... that all depends on what you want to use it for... Potentiometers are available in many different sizes/shapes for mounting and are rated by 5 aspects: 1) Total resistance (or full scale resistance) - resistance of the potentiometer at full scale. 2) Resistance scale - typically either "...
- Wed Sep 21, 2022 10:10 pm
- Forum: General Discussion
- Topic: Enlarging Involute Cutter IDs
- Replies: 16
- Views: 5430
Re: Enlarging Involute Cutter IDs
As I understand it from your original question, you don't want to use a standard R8 blank arbor or stub arbor and turn the blank/stub down to size because it is too short to use in the horizontal position and have support on both ends, correct? If so, could you turn a long arbor rod with the correct...
- Sat Sep 03, 2022 8:33 pm
- Forum: Milling Machines
- Topic: Ditron DRO question?
- Replies: 3
- Views: 3741
Re: Ditron DRO question?
Yeah, not familiar with a Ditron DRO (and there seem to be a bunch of different versions), but it looks basically the same as any other DRO. If you are not working off an initial zero point off the part and calculating offsets to move to, then basically what Bill says. Switch to incremental mode, go...
- Fri Jul 08, 2022 11:08 pm
- Forum: General Discussion
- Topic: Cut Off Toll Holder Hardware Source?
- Replies: 9
- Views: 4900
Re: Cut Off Toll Holder Hardware Source?
The "threaded rod with wedge head" that broke looks like a standard flat head screw, with half the head ground off. Could you just find an appropriate screw and take an angle grinder to the head to match the original?
- Thu Jun 30, 2022 3:25 pm
- Forum: General Discussion
- Topic: Labeling fluid containers
- Replies: 6
- Views: 3073
Re: Labeling fluid containers
I posted a thread a couple years ago asking basically the same question. I tried a bunch of different things and nothing worked for more than a couple months. https://www.chaski.org/homemachinist/viewtopic.php?f=4&t=106065&p=383328 What I settled on has ended up working great. I cut some rin...
- Wed Jun 15, 2022 1:38 pm
- Forum: General Discussion
- Topic: Surface Grinding
- Replies: 181
- Views: 71570
Re: Surface Grinding
Perhaps, it is redish-brown in color, epoxied to the ways. Various forums say Ryton, Turcite, Teflon... The existing have cracked/chipped in a few places, have fine (what seem like evenly spaced) horizontal grooves the length of the way. It's not exactly clear to me if that was intentional or the re...