Search found 457 matches

by Carm
Tue Jan 10, 2017 11:56 am
Forum: General Discussion
Topic: ANSI Standard Force and Shrink Fits
Replies: 12
Views: 3053

Re: ANSI Standard Force and Shrink Fits

The book math is only a guideline in my experience. Experience is a very good but stern teacher. From your description, and from your other post, it appears the parts roll only and do not drive. If you could make the axle and bore EXACTLY the same size (0.0000) they would not go together without the...
by Carm
Sun Jan 08, 2017 1:11 pm
Forum: Welding
Topic: What filler rod to use?
Replies: 11
Views: 5526

Re: What filler rod to use?

Without further comprehension on my part, stitch welds on cast iron are very poor practice. The reason, rapid chilling guarantees cracks. Yes, there are procedures to avoid that But alternate methods may be preferable...anaerobic lockers, mechanical (pins, dutch keys etc.) If the part is not greatly...
by Carm
Sun Jan 08, 2017 12:58 pm
Forum: General Discussion
Topic: Templestik
Replies: 6
Views: 1882

Re: Templestik

"Anyone had any experiences with the tempilstick products?"

Yes.
Some are crumbly until you are near target, when they either smear or act like liquid.
The wrapper contains it until then.
If it is falling apart on handling, complain.
by Carm
Sun Jan 08, 2017 8:16 am
Forum: Welding
Topic: What filler rod to use?
Replies: 11
Views: 5526

Re: What filler rod to use?

Informed response requires intended mechanicals and thermal gradients.
What purpose does the weldment serve?
by Carm
Tue Nov 22, 2016 2:35 pm
Forum: General Discussion
Topic: Question About Inside Micrometers
Replies: 121
Views: 11999

Re: Question About Inside Micrometers

If you buy blocks to check your mikes, you can't use your mikes to check the blocks. Unless your mikes have been checked. And if you could do that, you wouldn't have bought the blocks. (snip) Paraphrasing Nick, and attempting clarification of my statement: Say you have a gage block of known provena...
by Carm
Tue Nov 22, 2016 10:02 am
Forum: General Discussion
Topic: Question About Inside Micrometers
Replies: 121
Views: 11999

Re: Question About Inside Micrometers

The PM dudes claim errors cancel instead of adding. It's funny; people say to use blocks to calibrate mikes, but when they evaluate their blocks, they say they're "dead on"...according to their mikes. Shars has a reasonable set of AS-0 blocks. I think that might not be a bad thing to have. Says "To...
by Carm
Sun Nov 20, 2016 10:28 am
Forum: General Discussion
Topic: Question About Inside Micrometers
Replies: 121
Views: 11999

Re: Question About Inside Micrometers

Steve It's all relative. Fine and practical work that precedes us was done by craftsman who never knew the "numbers" but relied on the feel of fits assessed by all manner of calipers without graduation. As Rich said, shops can produce good work using in house standards, even if they don't jibe with ...
by Carm
Mon Nov 14, 2016 8:43 am
Forum: General Discussion
Topic: Filling "oops" holes on Kurt vise
Replies: 10
Views: 1863

Re: Filling "oops" holes on Kurt vise

No Heat !! JB weld if you must. Agree, no heat. Epoxy on the way holes and dimple is quick and makes cleaning easy. I doubt you'll give it much thought post deed, but some other repair later would be easy to facilitate. Babbitt was used in days of yore for oops and cosmetic casting flaws but I see ...
by Carm
Mon Nov 14, 2016 7:24 am
Forum: General Discussion
Topic: Drill Press Quill Play.. How to Fix?
Replies: 6
Views: 2245

Re: Drill Press Quill Play.. How to Fix?

A couple methods in addition to shimming. 1. Tap a hole in the side of the casting and use soft tipped drive screw(s) or a brass slug to take up play. 2. Inject Moglice or homemade version. You will need to research clearance req'd, parting, mixes etc. I've known a few Bports that had this done, a l...
by Carm
Sat Nov 12, 2016 1:32 pm
Forum: General Discussion
Topic: Punch Pin Grinding
Replies: 14
Views: 2618

Re: Punch Pin Grinding

"What is a punch pin ?"

An ambiguous term, though specific to users, as in Earlgo's reply.
Those pins need the diameter maintained, essentially form tools.
Picture in the OP will do OD's and ends
by Carm
Sat Nov 12, 2016 9:00 am
Forum: Welding
Topic: Questions About Metal Thickness
Replies: 70
Views: 19877

Re: Questions About Metal Thickness

Those old time batteries were supposed to have been used to gold plate lead figurines. So, if you ever buy an old "gold" statue, it just may be lead that was gold plated. BTW, they had hearing aids back then. They just didn't fit in your ears. You married them and they told you everything you neede...
by Carm
Sat Nov 12, 2016 8:55 am
Forum: Lathes
Topic: Monarch 10EE on Monarch website
Replies: 40
Views: 8600

Re: Monarch 10EE on Monarch website

Let me invite abuse by asking: why would anyone spend that much on a manual lathe? What do you get that's so wonderful? I don't really know much about the 10EE. (snip) 1st question, I doubt anyone would these days. A fully equipped 10EE compared to a modest CNC is a no-brainer for someone making ch...