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Search: Posts Made By: Roundrocktom
Forum: Machining 04-05-2015, 11:27 AM
Replies: 13
Views: 3,165
Posted By Roundrocktom
To really get your feet wet, a super simple CNC...

To really get your feet wet, a super simple CNC machine (dremel tool / pen plotter) will work. Best if you can make it from as much scrap as possible (keep cost down). Even derlin bushings.

John...
Forum: Machining 09-13-2014, 12:39 PM
Replies: 25
Views: 5,263
Posted By Roundrocktom
Hmm, what did you do with the Grob? I...

Hmm, what did you do with the Grob?

I wouldn't mind a Grob with the belt pulley system (early), later went to a hydraulic transmission that folks trash talk (so good deals to be found on a simple...
Forum: Welding 08-14-2014, 05:26 PM
Replies: 16
Views: 3,655
Posted By Roundrocktom
Uh oh.... now you tell me. :) One reason I...

Uh oh.... now you tell me. :)

One reason I like making aluminum tank with flange welds (2x material thickness). No filler, but flux and weld (OA) for a nice pretty tank.

In WWII that was SOP...
Forum: Welding 08-13-2014, 06:52 PM
Replies: 16
Views: 3,655
Posted By Roundrocktom
I just want to hear this one. Butt welding...

I just want to hear this one.

Butt welding steel auto panels, no filler, is done. Weld always shrinks the metal in, so hammering the weld (hammer on dolly) is used to stretch the metal back to...
Forum: Machining 08-10-2014, 08:57 AM
Replies: 20
Views: 3,820
Posted By Roundrocktom
That fly cutter does come in handy: ...

That fly cutter does come in handy:
https://www.youtube.com/watch?v=Wy30P9eEfQw

Good book. Tom Liptons "Metal Working - Doing it better" is also good for starting out, but covers machining,...
Forum: Machining 08-09-2014, 07:28 PM
Replies: 20
Views: 3,820
Posted By Roundrocktom
One I always recommend is Machining Fundamentals...

One I always recommend is Machining Fundamentals by John Walker.

Buy an OLDER edition cheap. 1972? 1980 also works. 1990's and later dropped stuff to make room for CNC.

A lot of high schools...
Forum: Shop & Safety 07-25-2014, 08:15 AM
Replies: 10
Views: 5,173
Posted By Roundrocktom
Nice find! I keep looking for "cheap" Lista...

Nice find!

I keep looking for "cheap" Lista cabinets. Those two words don't go together, but kicking myself for not grabbing a pair for $400, just didn't have the $$$$.

Best "bang for the...
Forum: Fabrication 07-18-2014, 07:22 AM
Replies: 141
Views: 26,784
Posted By Roundrocktom
Gray hair does help keep the police away. As a...

Gray hair does help keep the police away. As a kid I always got nailed, these days cops see gray hair and know they are in for lots of shit and just don't stop me. :)

NICE RIG! Still have my...
Forum: Shop & Safety 07-18-2014, 07:16 AM
Replies: 137
Views: 40,317
Posted By Roundrocktom
JL Welcome. Cool shop cat, so fess up on how...

JL Welcome.

Cool shop cat, so fess up on how he got his name. I'm allergic to cats, sadly, but the neighbors cat likes my shop so he is always encouraged to get mice. One day my Husky was...
Forum: SFT Information 07-14-2014, 08:13 AM
Replies: 44
Views: 6,063
Posted By Roundrocktom
You realize will be hearing the "Deutschland Uber...

You realize will be hearing the "Deutschland Uber Alles" for the next year.

https://www.youtube.com/watch?v=yLHGTJjHXLo

When I lived in Germany, the local football (soccer) stadium was about 2...
Forum: Machining 07-11-2014, 06:24 PM
Replies: 12
Views: 4,885
Posted By Roundrocktom
Long week! The word "magnetic" tossed me a bit. ...

Long week! The word "magnetic" tossed me a bit. I was thinking magnetic base for a dial indicator, or a magnetic base for grinding.

Simple shop square -- made from junk yard scrap (piston in...
Forum: Machining 07-11-2014, 03:48 PM
Replies: 12
Views: 4,885
Posted By Roundrocktom
As in to hold a dial indicator the lathe or mill?...

As in to hold a dial indicator the lathe or mill?

A couple appear in video here:
https://www.youtube.com/watch?v=W2SGxSng4CQ

No, I don't show them on the lathe or mill, just discuss a few of...
Forum: Fabrication 07-11-2014, 10:10 AM
Replies: 24
Views: 11,400
Posted By Roundrocktom
Good haul... I gave about the same stuff away! ...

Good haul... I gave about the same stuff away! Local K-Mart closed out and we got a ton of shelving, but had to disassemble. Neighbor had the haul of it, and I took what was left over to help him...
Forum: Mechanical & Electrical 07-10-2014, 06:42 AM
Replies: 17
Views: 4,762
Posted By Roundrocktom
I've made up "key hole" in some steel plate. ...

I've made up "key hole" in some steel plate. Round hole (chain passes through) then a slot (width of the link).
Forum: Fabrication 07-08-2014, 03:27 PM
Replies: 11
Views: 3,599
Posted By Roundrocktom
Checkout Shopdogsam YouTube video. He...

Checkout Shopdogsam YouTube video. He talks/acts like a country hick, but he is brilliant.

https://www.youtube.com/watch?v=gsBEv8HdvDI

One of the things to remember is "line of sight" when...
Forum: Fabrication 07-07-2014, 11:49 AM
Replies: 14
Views: 4,467
Posted By Roundrocktom
Just tell the doc's you did a successful hip...

Just tell the doc's you did a successful hip surgery in your shop. :D

Ex wife knew me too well, and left me with needles and thread in a neat little autoclave package. (She was US Army Nurse......
Forum: Machining 07-07-2014, 11:21 AM
Replies: 16
Views: 3,498
Posted By Roundrocktom
Flycutter is done. Posted it up on You Tube. I...

Flycutter is done. Posted it up on You Tube. I ended up using those sleeves for a letter/number stamping project (future video) as it came out nicely.

I ended up getting a 1/4" square broach...
Forum: Machining 07-05-2014, 05:23 PM
Replies: 16
Views: 3,498
Posted By Roundrocktom
What about a flycutter that can handle 3" to 10"...

What about a flycutter that can handle 3" to 10" swing?

Hmm, wonder how the Index Milling Machine will like tossing around a big bar? I'll cut the 1" bar down to 7" to keep it reasonable (max is...
Forum: Machining 06-25-2014, 12:49 PM
Replies: 10
Views: 2,137
Posted By Roundrocktom
Chris, I could really use a nice 8" round...

Chris,

I could really use a nice 8" round capacity band saw.... Nothing like keeping drops at 35# for fixtures (I could slice in half, if I hand a band saw, but size is good as it doesn't move...
Forum: Machining 06-25-2014, 08:13 AM
Replies: 10
Views: 2,137
Posted By Roundrocktom
Just bought 240-4930 -- nice 10/14 blades! ...

Just bought 240-4930 -- nice 10/14 blades!

Irwin -- not cheap, but cutting everything from 6061 to 4340 with it.
List $27.99 Sale $14.99, snagged a 20% off & free ship $11.99

Check back in a...
Forum: Welding 06-22-2014, 08:31 AM
Replies: 36
Views: 6,143
Posted By Roundrocktom
Love it. Idea is to prevent contamination....

Love it.

Idea is to prevent contamination. Often some shops will leave valves open on empty cylinders.

Friend out in Northern California had problems with crap in the welds. OA aluminum...
Forum: Machining 06-19-2014, 03:20 PM
Replies: 20
Views: 5,112
Posted By Roundrocktom
Hmm, two weeks and no photo's of chips in...

Hmm, two weeks and no photo's of chips in progress...

OSB Walls -- I covered them with corrugated roof sheeting to cover the walls. Reflective, and much easier to wipe up oil when i get carried...
Forum: Machining 06-19-2014, 02:55 PM
Replies: 9
Views: 1,813
Posted By Roundrocktom
I do appreciate the chuckle on this one. ...

I do appreciate the chuckle on this one.

Power Feed was being used, hence 0.006" per rev. Drill bit was nice and sharp (two tight curls coming up). Spot drill to locate hole I'd dab oil with...
Forum: Machining 06-19-2014, 10:36 AM
Replies: 9
Views: 1,813
Posted By Roundrocktom
Threading vs Cutting Oil (paging Shade)

I had some great stuff.... friend left me a gallon of machining oil some years back, and I've finally depleted it. I'm sure nasty sulfur and chlorine stuff, sigh lost him to cancer... maybe this is...
Forum: Fabrication 06-19-2014, 09:41 AM
Replies: 9
Views: 3,912
Posted By Roundrocktom
If you belong to any groups..... get together...

If you belong to any groups..... get together and see where everyone buys from.

We basically all worked through the same salesman. So he would write up as "Metal Club/Cash Acct". About 20%...
Showing results 1 to 25 of 384

 
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