Search found 19815 matches

by Harold_V
Fri Jan 26, 2007 10:48 pm
Forum: Welding
Topic: Carbide gas generator?
Replies: 33
Views: 27261

gmann109 wrote:I don't know whether carbide gas is as safe as Acetylene and that might be another consideration.
Acetylene is carbide gas, or the gas that's liberated when exposing calcium carbide to moisture. :wink:

Harold
by Harold_V
Fri Jan 26, 2007 10:42 pm
Forum: General Discussion
Topic: Large Bridgeport/NEMA Electronic Enclosure
Replies: 4
Views: 1863

Along with Victor's suggestion, you might consider checking with local wholesale electrical supply houses. They offer a nice array of boxes, with various types of covers, included hinged types. They come in a huge variety of sizes, so you're bound to find exactly what you're looking for. I believe w...
by Harold_V
Fri Jan 26, 2007 3:27 pm
Forum: Live Steam
Topic: Pattern Making part Five
Replies: 22
Views: 7493

JohnHudak wrote:Moderators, is there anything that can be done here?
John
All posts are permanently archived-----all it takes is a search with a key word or two. Beyond that, I don't know that there's anything I could do at my level, but Marty may have some suggestions.

Harold
by Harold_V
Fri Jan 26, 2007 3:37 am
Forum: Live Steam
Topic: Pattern Making part Five
Replies: 22
Views: 7493

LL, That's interesting. For sure, it's what's preventing pics from displaying on my machine, but it could be because of interaction with some other program, or perhaps when it asked for permission at some point in time I gave it a thumbs down, and it has a long memory! :D I've looked deep in the ent...
by Harold_V
Fri Jan 26, 2007 3:29 am
Forum: General Discussion
Topic: How should I hook up a 3ph Colchester Chipmaster?
Replies: 9
Views: 5660

I'd suggest a rotary phase converter, and that's something you can build yourself fairly reasonably if you're so inclined. Static converters don't perform without serious loss of power and performance. You're likely to get an argument from some folks over that statement, but if you put your lathe to...
by Harold_V
Fri Jan 26, 2007 3:21 am
Forum: General Discussion
Topic: Grinding (and using) HSS parting blades
Replies: 19
Views: 8489

Now that's how my old tool was doing. Not really full coils, but it would roll up coils of several layers befor they broke off. Perhaps the "slight positive rake" is provided by the AXA holder, and my biggest problem is just the excessive speed for that diameter? I'm not familiar with tha...
by Harold_V
Fri Jan 26, 2007 1:56 am
Forum: General Discussion
Topic: Grinding (and using) HSS parting blades
Replies: 19
Views: 8489

Now it cuts pretty good with no chatter. I haven't quite figured out why that made so much difference. Without seeing the grind you speak of, I can't say with certainty, but you described a chip breaker similar to one I recommended in a recent post. If you didn't read it, you may find the informati...
by Harold_V
Fri Jan 26, 2007 1:49 am
Forum: General Discussion
Topic: Grinding (and using) HSS parting blades
Replies: 19
Views: 8489

I use the longitudinal chipbreaker on the top of the tool for the smal lathes at work. It seems to help pull the chip out for a freer cut with limited power. The L&S doesn't care. I've hand ground parting tools as long as I've been in the shop. The longitudinal grind is exactly what I use, and ...
by Harold_V
Fri Jan 26, 2007 1:24 am
Forum: Live Steam
Topic: Pattern Making part Five
Replies: 22
Views: 7493

Hmmm, I can't see Dave's pictures in this thread (or in his other posts in this series on pattern making), and it's frustrating because the info he's sharing is solid gold. PRR_F3c's pictures, on the other hand, come through just fine. I've checked my profile, and I have both HTML and BBCode turned...
by Harold_V
Fri Jan 26, 2007 1:09 am
Forum: The Resource Library
Topic: A grinder for HSS toolbits
Replies: 47
Views: 135462

Great info, appreciate the time you put into it. Could you post a pic of the adaptor? THANKS! Greg, I don't have a pic available, but I pencil sketched cross sections of the pieces a couple weeks ago for our very own SteveM, so I've copied the sketches, below. They're poorly done, chopped out in ha...
by Harold_V
Fri Jan 26, 2007 12:24 am
Forum: The Resource Library
Topic: A grinder for HSS toolbits
Replies: 47
Views: 135462

How about a 2900 RPM motor :?: Dual Shaft motors at 3450rpm are a little tough to come by.... Marty That's starting out with a serious reduction in surface speed (roughly 20%), so wheels wouldn't perform as intended. That's not to say that they won't work, they'll just behave softer---and break dow...
by Harold_V
Thu Jan 25, 2007 3:31 pm
Forum: The Resource Library
Topic: A grinder for HSS toolbits
Replies: 47
Views: 135462

Excellent write up as usual Harold! I can only think of one thing to add which is that the left side of a dual shaft grinder should have a left handed arbor thread with matching nut, lest it work itself loose during use. Victor Thanks, Victor. The nut issue. Because I use my grinder in both directi...