Search found 1212 matches

by John Hasler
Sat Jul 13, 2019 5:59 pm
Forum: General Discussion
Topic: New here - Hello!
Replies: 9
Views: 285

Re: New here - Hello!

Welcome!
by John Hasler
Wed Jul 10, 2019 7:24 pm
Forum: General Discussion
Topic: Looking for 4032
Replies: 13
Views: 594

Re: Looking for 4032

Harold_V wrote:
Mon Jul 08, 2019 3:33 pm
I would think that 6061 in a T6 condition would do the job satisfactorily, and it's readily available.

H
A direct comparison of 4032 and 6061:

https://www.makeitfrom.com/compare/4032 ... 1-Aluminum
by John Hasler
Mon Jul 08, 2019 9:53 pm
Forum: The Junk Drawer
Topic: Lathe setup device
Replies: 8
Views: 409

Re: Lathe setup device

I think that most of the lasers that we civilians have access to have too wide a beam to be used for something this precise. I use Earlgo's method. It definitely gets me to better than the width of the typical laser I can afford. I once tried to use a carpentry laser to do a wheel alignment and fou...
by John Hasler
Mon Jul 08, 2019 8:51 am
Forum: I.C. Engines
Topic: I do not understand cams
Replies: 4
Views: 156

Re: I do not understand cams

Any flat cam follower large enough not to dig in will follow the same profile. The excess diameter simply never touches the cam. Visualize this and then replace the cam follower with an end mill.
by John Hasler
Sun Jul 07, 2019 10:09 am
Forum: The Junk Drawer
Topic: Lathe setup device
Replies: 8
Views: 409

Re: Lathe setup device

I came up with an idea that could help in setting up cutting tool bits to the lathe center. It would use a laser. Has anyone made such a device or has one been marketed? Mr.Ron from South Mississippi Top Google lathe laser alignment. Lots of very expensive industrial products but also lots of DIY a...
by John Hasler
Wed Jul 03, 2019 12:06 pm
Forum: General Discussion
Topic: Vise, Vise, Baby
Replies: 54
Views: 1761

Re: Vise, Vise, Baby

I have a Columbian D45: I didn't realize that it's special. It's just what I picked up at an auction about 25 years ago when I needed a vise. I also inherited a very old Oswego 13 1/2 B.
by John Hasler
Mon Jul 01, 2019 8:58 am
Forum: General Discussion
Topic: Vise, Vise, Baby
Replies: 54
Views: 1761

Re: Vise, Vise, Baby

I do not like the movable front jaw type. I like the rear jaw moving on dovetails like the link. (if the link works). I had one in Italy and the jaws close parallel on all axis, you can hold a pin in a corner an file the top lengthwise. What I have is a $50 HF that I do not mind abusing as press or...
by John Hasler
Mon Jul 01, 2019 8:53 am
Forum: General Discussion
Topic: Vise, Vise, Baby
Replies: 54
Views: 1761

Re: Vise, Vise, Baby

Stiffness may be what determines the amount of material required (Steel has a slight edge over ductile iron). Thus using a stronger material may not lead to as much weight reduction as you might expect.

I suppose what you really want is a vise made from steel forgings, but who can afford that?
by John Hasler
Sun Jun 30, 2019 11:02 am
Forum: General Discussion
Topic: Vise, Vise, Baby
Replies: 54
Views: 1761

Re: Vise, Vise, Baby

But what if good quality IS cheap? The cheap Yost is held out to be considerably stronger than a Wilton. Held out by who? If the vise is strong enough to neither break nor flex excessively under the maximum force that can be applied with the handle and that force is sufficient to hold the work with...
by John Hasler
Sat Jun 29, 2019 1:23 pm
Forum: General Discussion
Topic: Vise, Vise, Baby
Replies: 54
Views: 1761

Re: Vise, Vise, Baby

Sure. No more likely to be porous than the same part of the cast iron one and stronger if not.

Surely the Bessey is also be welded if it is really forged.
by John Hasler
Sat Jun 29, 2019 12:59 pm
Forum: General Discussion
Topic: Reaming Cast Steel Fittings without a Mill
Replies: 27
Views: 1071

Re: Reaming Cast Steel Fittings without a Mill

Harold writes: Even with a rigid hone, progress would be dreadfully slow. Without the right tools, that's the way it's going to be. Looking closely at the photo I see a bit of a lip on the holes. He may not need to ream any deeper than 6 mm or so. The reamer I linked to might work, depending on how ...
by John Hasler
Fri Jun 28, 2019 10:23 pm
Forum: General Discussion
Topic: Reaming Cast Steel Fittings without a Mill
Replies: 27
Views: 1071

Re: Reaming Cast Steel Fittings without a Mill

Bill Shields wrote:
Fri Jun 28, 2019 7:24 pm
instead of opening the hole...can you turn DOWN the pipes????
That's the best idea yet.