Search found 467 matches

by jcfx
Tue Mar 31, 2020 9:37 pm
Forum: The Junk Drawer
Topic: OP even for the Junk Drawer - Corona virus
Replies: 40
Views: 1576

Re: OP even for the Junk Drawer - Corona virus

Our local pharmacy doesn't let anyone inside; they made a quick inner door with a glass window and a slot to pass things through, customers have to stay outside. They told me best to phone in my order next time, they'll have it packed. This to minimize customers crowding together outside. That's fu...
by jcfx
Mon Mar 30, 2020 10:22 am
Forum: The Junk Drawer
Topic: Involute Cutter Set
Replies: 2
Views: 162

Re: Involute Cutter Set

Maybe it's so cheap because the OD and bore are metric ?
by jcfx
Fri Mar 27, 2020 2:28 pm
Forum: Milling Machines
Topic: Mill tooling
Replies: 16
Views: 567

Re: Mill tooling

Steve, Yes you can mount them on their side with a caveat, most CNC style vises the jaw and the movable jaw mount are usually flush
or slightly proud of the base, shimming or a plate is needed for movement clearance.

Jim
by jcfx
Thu Mar 26, 2020 3:00 pm
Forum: Milling Machines
Topic: Mill tooling
Replies: 16
Views: 567

Re: Mill tooling

I think based on the accoutrements that elewayne has a milling vice is in order along with some measuring tools. A digital caliper, machinists rulers, maybe a micrometer. For a milling vise I have a preference for the CNC style vises. Like this one for example, there are other brands with similar st...
by jcfx
Wed Mar 25, 2020 12:30 pm
Forum: The Junk Drawer
Topic: OP even for the Junk Drawer - Corona virus
Replies: 40
Views: 1576

Re: OP even for the Junk Drawer - Corona virus

spro, I'm dry eye sufferer too, if you haven't done so I find moisturizing eye drops very helpful, Systane Ultra is brand I use. I also use a eyewash especially since my shop is surrounded with wood workers and they habitually blow things off and take air showers at the end of the day. The eye wash ...
by jcfx
Mon Mar 23, 2020 11:26 am
Forum: The Junk Drawer
Topic: OP even for the Junk Drawer - Corona virus
Replies: 40
Views: 1576

Re: OP even for the Junk Drawer - Corona virus

Your eyes are connected to the respiratory system via tear ducts, that's why you get a runny nose when you tear up.
So face shields are a way to prevent infection.
by jcfx
Sat Feb 29, 2020 11:21 pm
Forum: General Discussion
Topic: Dead soft Aluminum
Replies: 14
Views: 1400

Re: Dead soft Aluminum

Lew, I think what you have is 1100 pure aluminum, artists sculpture armature wire is 1100 very easy to bend and pound flat.
McMaster's spec on it is 2500psi yield compared to 5052 at 47000psi and 3003's 21000psi.
by jcfx
Thu Feb 27, 2020 9:39 pm
Forum: Buy, Sell, Trade, Wanted, Free!
Topic: Wanted - threaded steel balls, 5/8-11
Replies: 9
Views: 1104

Re: Wanted - threaded steel balls, 5/8-11

Why not just get some un hardened steel balls, or anneal hardened ones and drill and tap on the lathe ? Thought of that, but gripping will mar the surface. I suppose the aluminum soft jaws would do the least damage, and if instead of boring the jaws, I cut a V or used a tool with a radius, it would...
by jcfx
Wed Feb 26, 2020 6:51 pm
Forum: General Discussion
Topic: Tapping carbon fiber tubing
Replies: 9
Views: 1128

Re: Tapping carbon fiber tubing

What GlennW said, I did a bit vacuum bagging carbon fiber and the best cutting tool was tungsten carbide grit cutting wheels, but that has nothing to do with tapping. For tapping could you use threaded inserts instead ? They can be glued in with a structural epoxy, you would still have to drill for ...
by jcfx
Wed Feb 26, 2020 4:14 pm
Forum: Buy, Sell, Trade, Wanted, Free!
Topic: Wanted - threaded steel balls, 5/8-11
Replies: 9
Views: 1104

Re: Wanted - threaded steel balls, 5/8-11

Why not just get some un hardened steel balls, or anneal hardened ones
and drill and tap on the lathe ?
by jcfx
Wed Feb 05, 2020 2:06 am
Forum: Welding
Topic: AlphaTIG 200x
Replies: 9
Views: 2252

Re: AlphaTIG 200x

One issue I have with tigging aluminum is inside corner joints, I never seem to to be able to
keep the arc steady it jumps from one side to the other.
Lap and butt joints I did well with as long as I remembered to ease up on the pedal once the puddle formed :oops:
by jcfx
Wed Feb 05, 2020 1:51 am
Forum: General Discussion
Topic: Center Drill Tip Broken Off In Hole
Replies: 34
Views: 3873

Re: Center Drill Tip Broken Off In Hole

BadDog wrote:
Mon Feb 03, 2020 8:44 pm
With the slot properly oriented and sized, it makes a sort of very primitive coring drill.

The slot would need to be just wide enough to straddle the broken embedded tip, and thus not stopped by the tip.
Ah-HA ! Now it makes sense.