Search found 1306 matches

by pete
Thu Jan 11, 2018 5:16 am
Forum: General Discussion
Topic: Knockoff Bearings
Replies: 9
Views: 425

Re: Knockoff Bearings

Today's large scale substandard fake parts or knock offs started as least to my knowledge many years ago in the commercial aircraft industry where it's still a huge problem. The paperwork trail and certifications now required for each and every part has to add millions in costs for the lifespan of a...
by pete
Wed Jan 10, 2018 6:57 am
Forum: Milling Machines
Topic: R8 shank with ER32 collet system.
Replies: 33
Views: 3845

Re: R8 shank with ER32 collet system.

If you think about it logicaly Spro (and I wasn't before) then there's a linear relationship between tool shank diameter verses the the collet grip required to resist the cutting forces. I also use my collets for large drill holding so there's likely much more axial load than you'd normaly see with ...
by pete
Mon Jan 08, 2018 8:31 pm
Forum: Lathes
Topic: What Size Quick Change for Enco 13 x 40?
Replies: 6
Views: 237

Re: What Size Quick Change for Enco 13 x 40?

If the quick change tool post and tool holders are dimensioned on the manufacturers website or the tool dealer shows them then using what the Aloris or Dorian website shows about sizing a tool post and the tool holders works well. You still need a few measurements from your machine to figure it all ...
by pete
Mon Jan 08, 2018 6:16 pm
Forum: General Discussion
Topic: Drill Chucks
Replies: 20
Views: 593

Re: Drill Chucks

Yep we had lot's of Grizzly's, some moose, wolves, a lot of fox, weasels right in camp and even a few herds of Cariboo come through during migrations. By freight truck the mine was about 6 hrs travel time to the nearest paved highway but I've never traveled the road, we flew in and out with a 2 week...
by pete
Mon Jan 08, 2018 5:27 pm
Forum: General Discussion
Topic: Shop made Machinist Level
Replies: 9
Views: 391

Re: Shop made Machinist Level

The best vials are ground on that large curvature and to some impressive numbers. That's what makes them expensive. Doing some Google searches for Building a Kingway Tool or a few variations on that should get you some links to a few manufacturers of precision vials. My actual knowledge about precis...
by pete
Mon Jan 08, 2018 2:55 am
Forum: Milling Machines
Topic: R8 shank with ER32 collet system.
Replies: 33
Views: 3845

Re: R8 shank with ER32 collet system.

I thought I should add to this since I've found some new information about the torque required to properly tighten ER collets. Maybe partial information might be more accurate. Those high closing torque numbers such as 100 ft. lbs for ER 32 and 130 ft. lbs for ER 40 are only for the largest diameter...
by pete
Sun Jan 07, 2018 5:13 pm
Forum: General Discussion
Topic: Drill Chucks
Replies: 20
Views: 593

Re: Drill Chucks

I've got some friends in the UK and there availability of choice European made machine tools at generaly pretty low prices makes me envious. Have never even seen one of those Arbogas up close, but there reputation is sure good. Getting to use one would spoil me for life. As lightly built as my large...
by pete
Sat Jan 06, 2018 8:18 pm
Forum: 3-in-1 Metalworking Machines
Topic: Harbor Freight 46199
Replies: 21
Views: 6136

Re: Harbor Freight 46199

Pretty clever idea Torch and one I need to remember. After shearing the teeth on mine the first time I bought a half dozen of the 60 tooth gears that are designed to be sacrificial. Pure luck I did so because a few years after that Emco decided to quit supporting the smaller machines they were no lo...
by pete
Sat Jan 06, 2018 7:18 pm
Forum: General Discussion
Topic: Drill Chucks
Replies: 20
Views: 593

Re: Drill Chucks

Hmmm that's quite a bit. The chucks themselves should be pretty good and I've been more than happy with my Glacerns verses what they cost. I'm sure with you about those generaly over bored head castings. My floor model dp was bored to a really nice sliding fit, but with the little one you can shake ...
by pete
Sat Jan 06, 2018 5:08 am
Forum: 3-in-1 Metalworking Machines
Topic: Harbor Freight 46199
Replies: 21
Views: 6136

Re: Harbor Freight 46199

Hmmm, one thing to remember is that for some lathes one or more gears can sometimes be considered and designed to be sacrificial parts. There can also be a few good reasons why plastic gears may have been used. One there generaly quieter and two and I suspect this is the real reason is that during a...
by pete
Sat Jan 06, 2018 2:48 am
Forum: General Discussion
Topic: Drill Chucks
Replies: 20
Views: 593

Re: Drill Chucks

I checked my Albrecht at quite a few diameters when it was brand new. Right around .001" on average. I think Albrecht guarantees .0015" or better. I've mentioned before about buying 3 integral shank Glacern keyless and what testing I did showed .001"-.0015" but a bit more towards the .0015" end on a...
by pete
Fri Jan 05, 2018 11:35 pm
Forum: General Discussion
Topic: Are we allowed to ask here for Tutoring?
Replies: 8
Views: 324

Re: Are we allowed to ask here for Tutoring?

Long Beach California for what he's said.