Search found 1802 matches

by pete
Thu Feb 13, 2020 5:04 pm
Forum: General Discussion
Topic: OT: Building in isolated location
Replies: 606
Views: 116502

Re: OT: Building in isolated location

With surgery Bill you'll have nerves within that area that get cut. My surgeon told me that numb feeling is caused by those severed nerves. If my memory isn't faulty I think he mentioned those nerves grow back at approximately 1 mm per day. However it can happen sometimes that the nerve never comple...
by pete
Wed Feb 12, 2020 3:16 pm
Forum: General Discussion
Topic: Heinrich 3TS cleanup advice needed
Replies: 2
Views: 321

Re: Heinrich 3TS cleanup advice needed

Google indicates that's there drill press vise? Depending on just how that vise was first assembled it may not be possible to drive the round rails out without breaking the end casting ears. Industry doesn't screw around and uses a lot of induction heating while heat shrinking parts in place. I'm no...
by pete
Wed Feb 12, 2020 2:46 pm
Forum: General Discussion
Topic: First time using super glue chuck
Replies: 72
Views: 5581

Re: First time using super glue chuck

There's also what are generally called Spindle Speeders John. Basically a planetary drive to multiply the main spindles rpm. And with usually some type of small collet nose for the tooling.New = expen$ive, they do show up on Ebay, but it might take some searching and time. Fwiw Hemingway Kits in the...
by pete
Tue Feb 11, 2020 8:21 pm
Forum: Lathes
Topic: Runout Wobble on the Chuck?
Replies: 27
Views: 1360

Re: Runout Wobble on the Chuck?

Yep good point, there could be multiple causes and fixes from it's already just fine, to dead simple and free on up to possibly complex or expensive. Carlos's pictures show what I think is an old chuck so it's untested and unknown what it's condition is right now. Buying used home shop equipment alw...
by pete
Tue Feb 11, 2020 7:13 pm
Forum: Lathes
Topic: Runout Wobble on the Chuck?
Replies: 27
Views: 1360

Re: Runout Wobble on the Chuck?

Given the picture in Carlos's first post I'd say more than one test is going to be required before the exact issues of what's causing the problem can be nailed down. I'd first remove the chuck and check the spindle mounting threads for burrs, then indicate the locating flanges face and O.D. of the s...
by pete
Sun Feb 09, 2020 7:06 am
Forum: Milling Machines
Topic: Some DRO scale mounting pictures for your review
Replies: 6
Views: 451

Re: Some DRO scale mounting pictures for your review

No need to drill hole, just make it a two piece stop to match the dovetail angle and use a bolt above the angle to clamp it in place on the dovetail itself. The clamp just holds it in place but the stop should be against the column and wide enough so the scale guard can't touch the column.
by pete
Sun Feb 09, 2020 4:35 am
Forum: Milling Machines
Topic: Some DRO scale mounting pictures for your review
Replies: 6
Views: 451

Re: Some DRO scale mounting pictures for your review

With a rear mounted X axis scale like that I'd add a block clamped to the Y axis dovetail as a semi permanent way to protect your scale and it's guard to keep the table from moving too close to your column. It's not if you'll forget and run it into the column, only how long before you do. The rest l...
by pete
Sun Feb 09, 2020 12:25 am
Forum: General Discussion
Topic: Mill and Lathe Recommendations for High School Machine Shop
Replies: 19
Views: 1096

Re: Mill and Lathe Recommendations for High School Machine Shop

The main question is what is the budget? Without those numbers it's an impossible to properly answer question. When I was in HS part of the entry level requirement was a semester of drafting, electrical, and then the metal and wood shop classes. Then the first few classes of theory put the horse in ...
by pete
Sat Feb 08, 2020 10:33 pm
Forum: General Discussion
Topic: First time using super glue chuck
Replies: 72
Views: 5581

Re: First time using super glue chuck

A cutting tool like an end mill during conventional milling exerts the most force on the part as it starts to exit the part. One side is still doing that conventional cutting but the opposite side is then climb cutting. It's for that reason it's a good idea to reduce the feed rate as the end mill st...
by pete
Tue Feb 04, 2020 5:28 pm
Forum: Lathes
Topic: 5C collet chuck
Replies: 10
Views: 1744

Re: 5C collet chuck

A good chance of a maybe on that collet run out being better than a lot of chucks. It seems to depend on a certain amount of luck verses the money spent. While I can't recall any YT videos showing run out tests on the off shore 5C collets, there are multiple videos showing ER collet run outs well in...
by pete
Mon Feb 03, 2020 3:44 am
Forum: Lathes
Topic: Considering a DRO
Replies: 32
Views: 3715

Re: Considering a DRO

Industrial level equipment that started out as well made, accurate, kept well maintained and in adjustment can be a whole lot different than to put it kindly some less than well made and accurate to begin with machines even when brand new. I'd 100% agree everyone should learn how to machine to coord...
by pete
Sun Feb 02, 2020 8:47 pm
Forum: Lathes
Topic: 5C collet chuck
Replies: 10
Views: 1744

Re: 5C collet chuck

Going by the OP and your mention of centering the back plate to a step turned on the faceplate it's not a method I'd chose. Better imo to turn that back plate to whatever spindle nose mounting system your lathe already has. I'd also check various forums and posts for previous threads about adding a ...