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Search: Posts Made By: greywynd
Forum: Machining Yesterday, 05:27 PM
Replies: 10
Views: 257
Posted By greywynd
General preheating on the cutting edges up north...

General preheating on the cutting edges up north is 250f before welding, interpass temps not to exceed 400f.

Ramp down is 50F at a time, with a half hour at each temp before dropping to the next...
Forum: Fabrication 11-24-2022, 10:12 PM
Replies: 18
Views: 281
Posted By greywynd
Nice job for sure! Sent from my iPhone...

Nice job for sure!


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Forum: Mechanical & Electrical 11-22-2022, 06:19 AM
Replies: 54
Views: 1,088
Posted By greywynd
I had popcorn yesterday, today I may have...

I had popcorn yesterday, today I may have birthday cake. [emoji4] I will share though!


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Forum: Fabrication 11-21-2022, 08:50 PM
Replies: 62
Views: 25,170
Posted By greywynd
Along with the size, I always try to write the...

Along with the size, I always try to write the alloy/material as well.


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Forum: Machining 11-21-2022, 08:46 PM
Replies: 10
Views: 428
Posted By greywynd
Part of that may be due to the spring sagging and...

Part of that may be due to the spring sagging and then rubbing on the leadscrew. Might be better to let it turn with it, versus rubbing all the time?


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Forum: Mechanical & Electrical 11-21-2022, 08:43 PM
Replies: 54
Views: 1,088
Posted By greywynd
Who still has popcorn? Sent from my...

Who still has popcorn?


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Forum: Mechanical & Electrical 11-20-2022, 08:57 PM
Replies: 54
Views: 1,088
Posted By greywynd
Never done bearings in a trailer hub then? ...

Never done bearings in a trailer hub then?


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Forum: Mechanical & Electrical 11-20-2022, 06:27 AM
Replies: 54
Views: 1,088
Posted By greywynd
Bearing help

Heat will expand both the hub and race, and the race being a thinner cross section, it will expand more, due to more heat absorbtion.

Try the press again now that it’s all cooled off again.
...
Forum: Mechanical & Electrical 11-17-2022, 08:55 PM
Replies: 54
Views: 1,088
Posted By greywynd
Well, after it cools off again it will fall out. ...

Well, after it cools off again it will fall out.


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Forum: Fabrication 11-04-2022, 08:08 AM
Replies: 9
Views: 407
Posted By greywynd
The 30A would be for aluminum for other uses. The...

The 30A would be for aluminum for other uses. The bore welder runs steel, and is a totally self contained setup other than the power supply. (Which for me would be the XMT.)

The suitcase is the...
Forum: Fabrication 11-03-2022, 04:25 PM
Replies: 9
Views: 407
Posted By greywynd
That is part of the appeal, the high duty cycle. ...

That is part of the appeal, the high duty cycle.

‘Automatic’ bore welders commonly run .035/.045 solid wire, and depending on the power source they can at or very close to 100% duty cycle from...
Forum: Fabrication 11-03-2022, 11:30 AM
Replies: 9
Views: 407
Posted By greywynd
Good to know. There are some used ones around...

Good to know. There are some used ones around here for 2-3000 Can, so have been debating. It looks like there are ways to roughly date them by serial number.


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Forum: Fabrication 11-03-2022, 06:05 AM
Replies: 9
Views: 407
Posted By greywynd
A 350 is basically a bigger brother to a 300, and...

A 350 is basically a bigger brother to a 300, and in the newer 350’s it becomes the largest of the series that can run off single phase or three phase I believe.


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Forum: Fabrication 11-01-2022, 11:30 PM
Replies: 9
Views: 407
Posted By greywynd
XMT and a spool gun?

Looking at maybe getting a Miller XMT 350 in the near future, and curious, has anyone here used a spool gun with one?

Looks like the Miller 30A gun would be the one of choice for the machine, just...
Forum: Machining 11-01-2022, 09:05 PM
Replies: 7
Views: 379
Posted By greywynd
For shipping they usually just have them in...

For shipping they usually just have them in cardboard, but with a piece of cardboard between to prevent contact with each other.

It doesn’t need to be fancy, just to prevent them from hitting...
Forum: Machining 10-30-2022, 10:07 PM
Replies: 7
Views: 379
Posted By greywynd
Keep those wheels dry, and pack them up better,...

Keep those wheels dry, and pack them up better, if they crack, they are dangerous.

I see it still has the oil pump wired in to the rear of the column, that pump is about $500 alone, just so...
Forum: Mechanical & Electrical 10-26-2022, 09:16 PM
Replies: 6
Views: 494
Posted By greywynd
I’d likely do a compression test, and maybe a...

I’d likely do a compression test, and maybe a leakdown test if you can, the two will tell a lot about the internal conditions.


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Forum: Mechanical & Electrical 10-14-2022, 10:19 PM
Replies: 14
Views: 948
Posted By greywynd
Brake valve issue

I don’t recall the temp specs, and we were using them at or above room temps anyway. Some searching should find the lower temp specs for you.

I’m scratching my head on what you can use as an...
Forum: Mechanical & Electrical 10-14-2022, 07:38 AM
Replies: 14
Views: 948
Posted By greywynd
Viton is a better performer at higher temps, but...

Viton is a better performer at higher temps, but buna is better at low temps. Viton is a slight bit stiffer too, which can be good or bad. Sometimes it makes them harder to assemble, though a little...
Forum: Machining 09-13-2022, 05:02 PM
Replies: 113
Views: 9,043
Posted By greywynd
Nope, those are outside jaws, chances of finding...

Nope, those are outside jaws, chances of finding the proper matched set for ‘inners’ are slim. Even if you do find them, unless they are ground/fit to that specific chuck, they won’t run 100% true. ...
Forum: Shop & Safety 08-31-2022, 03:52 PM
Replies: 40
Views: 2,921
Posted By greywynd
We use a piece of 5/8” plywood when jacking the...

We use a piece of 5/8” plywood when jacking the mining shovels, between steel and steel. Four pieces about 2’ x 2’ hold up a couple million pounds.


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Forum: Mechanical & Electrical 08-31-2022, 03:44 PM
Replies: 8
Views: 993
Posted By greywynd
Make sure everything else is well lubed and...

Make sure everything else is well lubed and moving freely, and not adding to the load.

You could try these guys too,
https://youngfartsrvparts.ca


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Forum: Machining 08-31-2022, 01:00 AM
Replies: 27
Views: 2,684
Posted By greywynd
That 10” thru bore would be sweet for some...

That 10” thru bore would be sweet for some things, and a big pita for others.

If you have an extra three jaw, chuck it in the four jaw, dial it in and away you go for a lot more ease of use.
...
Forum: Machining 08-29-2022, 11:01 PM
Replies: 27
Views: 2,684
Posted By greywynd
Making a crankshaft

Some turrets advance when you crank them back, they hit a stop internally then advance to the next spot.

That machine is pretty new compared to the old south bends in my garage. The 9” south bend...
Forum: Machining 08-27-2022, 01:54 AM
Replies: 3
Views: 516
Posted By greywynd
Makes for a rough, and long day. At least it was...

Makes for a rough, and long day. At least it was readily found and fixed.


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