Search found 237 matches

by Mcgyver
Fri Aug 01, 2008 11:40 pm
Forum: General Discussion
Topic: Ball feed screws
Replies: 13
Views: 2280

whatever
by Mcgyver
Fri Aug 01, 2008 4:29 pm
Forum: General Discussion
Topic: Ball feed screws
Replies: 13
Views: 2280

I work with very small mill cutters at times, and if the table hiccups, 'bing' either the part or more usually the cutter is history. Controlling the slop or lash in the table drive is everything here. that's a good point Dave , when i was thinking backlash in the cross feed shouldn't matter i was ...
by Mcgyver
Fri Aug 01, 2008 4:13 pm
Forum: General Discussion
Topic: Ball feed screws
Replies: 13
Views: 2280

if you question the accuracy of the existing set up, consider a high quality acme screw Makes me wonder. Is the idea one that, perhaps, is intended to avoid the effects of backlash?. Harold what makes you wonder? you quoted my recommendation that, speculating that if the problem is accuracy in the ...
by Mcgyver
Fri Aug 01, 2008 1:58 pm
Forum: General Discussion
Topic: Ball feed screws
Replies: 13
Views: 2280

John, to what advantage? a ball screw offers a number of advantages, but it does leap out at me what they'd be in this application. Backlash is one for example, not sure why reducing backlash would matter for the cross slide. And like Dave said, the cutting force could easily drive the screw. Unless...
by Mcgyver
Mon Jul 28, 2008 7:31 pm
Forum: General Discussion
Topic: I need an adapter for.....
Replies: 3
Views: 1454

do you have a lathe? Just make one. I doubt anyone is retailing an adapter as you described but hey I've been wrong before
by Mcgyver
Thu Jul 17, 2008 5:34 pm
Forum: General Discussion
Topic: Morse Tapers
Replies: 8
Views: 1551

whether using the compound or taper attachment, I usually set up a commercial taper in the lathe between centres (sometimes you need to put a centre in the taper and rest it in a centre drilled hole in the headstock) and use an indicator against it. Its far from perfect and the indicator has to be a...
by Mcgyver
Wed Jul 16, 2008 7:21 am
Forum: General Discussion
Topic: shop cranes
Replies: 17
Views: 3018

the problem with a lot of portable hoists is that they are designed for applications where the supporting wheels can easily roll under a bed or car or whatever. Since seeing that thread I like the die cart - gotta be the most flexible solution to the problem. lift to height adjacent to machine and s...
by Mcgyver
Sat Jul 12, 2008 7:42 pm
Forum: Lathes
Topic: Holy cow - my first lathe! A Southbend 13"
Replies: 8
Views: 1898

I feel like a 10 year old at Christmas!
isn't it great?

congrats
by Mcgyver
Fri Jul 11, 2008 11:01 am
Forum: General Discussion
Topic: My vo-tech "blog" thread
Replies: 60
Views: 12340

glad to see you're having fun, nice shop you have access to. how did you like using the cut knurling tool? I'm going to try and make one, take the pain out of knurling. those clamps are VERY handy thing to make.....you don’t have to stop at 2 :lol: I made a ton of them years ago, very handy. single ...
by Mcgyver
Fri Jul 11, 2008 8:40 am
Forum: General Discussion
Topic: turning raduis on roller
Replies: 14
Views: 2673

thomas, A radius can readily be turned by what you describe; mapping out the x and y coordinates using Mr Pythagoras’s theory, turning a 'digital ' version of the curve (lots of little steps) than blending with a file. I made a graduated dial for the leadscrew but the compound would work equally wel...
by Mcgyver
Thu Jul 10, 2008 11:25 pm
Forum: General Discussion
Topic: Tell me about this grinder
Replies: 6
Views: 1475

John Stevenson on the HSM board sells a cd with a bunch of T&C grinder manuals and such on on it.

The link Errol posted to his site i think also had some
by Mcgyver
Thu Jul 10, 2008 9:46 pm
Forum: General Discussion
Topic: Tell me about this grinder
Replies: 6
Views: 1475

MikeC wrote:$100, eh?

Bad news is that you need a fixture for each of these operations.... .
you're right, however everything but the air bearing can readily be shop made. then again the cost of an air bearing will prove your point :D

if the spind bearings are good, wow, for a $100, way to go