Search found 1522 matches

by Russ Hanscom
Tue Mar 31, 2020 11:57 am
Forum: The Junk Drawer
Topic: OP even for the Junk Drawer - Corona virus
Replies: 40
Views: 1566

Re: OP even for the Junk Drawer - Corona virus

A chauvinistic plot is what my wife calls it. She is trying make masks for some medical friends, but the places that sell fabric, tape, and elastic are closed or out or both.

However, Lowes, HD, welding supply,...are all open....
by Russ Hanscom
Mon Mar 30, 2020 12:24 pm
Forum: The Junk Drawer
Topic: Involute Cutter Set
Replies: 2
Views: 159

Re: Involute Cutter Set

The one chinese involute gear cutter I got did have a metric bore, but I knew that going in and just made a suitable bushing. I need to cut one 16 PG gear, hoping the cheap cutter will last that long in steel - yet to be tried.
by Russ Hanscom
Sun Mar 29, 2020 5:25 pm
Forum: Lathes
Topic: CRASH.
Replies: 4
Views: 221

Re: CRASH.

Good plan, you were fortunate to have the facilities to make the needed parts and repairs.
by Russ Hanscom
Sat Mar 28, 2020 4:11 pm
Forum: Buy, Sell, Trade, Wanted, Free!
Topic: I sell steam train. - barbecue .
Replies: 2
Views: 218

Re: I sell steam train. - barbecue .

Very ingenious, thank you for sharing. Unfortunately, the freight cost would probably be as much as the locomotive.
by Russ Hanscom
Wed Mar 18, 2020 5:53 pm
Forum: General Discussion
Topic: Mystery drill bits
Replies: 15
Views: 1001

Re: Mystery drill bits

Most interesting,

Just to add to the confusion, my 1942 Aircraft Mechanic's Pocket Manual, shows the following drill sizes for #10 (3/16" dia) nominal fasteners.

AN standard rivet - #10 (.1935) drill
AN standard screw - #11 (.191)
AN standard bolt - #11 (.191.
by Russ Hanscom
Tue Mar 17, 2020 3:44 pm
Forum: General Discussion
Topic: Removing double ear crimp clamps O clips From Air Hose
Replies: 11
Views: 1436

Re: Removing double ear crimp clamps O clips From Air Hose

Twisting the ear always gets its attention.
by Russ Hanscom
Tue Mar 17, 2020 12:24 pm
Forum: General Discussion
Topic: Eye bolt rating
Replies: 23
Views: 1536

Re: Eye bolt rating

Our old company designs required that the lifting eyes, pad eyes as we called them, were welded to the equipment and were to be strong enough that one would hold the entire load if the other failed - made for some serious eyes - but never lost a load either.
by Russ Hanscom
Tue Mar 17, 2020 8:22 am
Forum: General Discussion
Topic: Eye bolt rating
Replies: 23
Views: 1536

Re: Eye bolt rating

Remember that eyebolts are designed for straight line loads. If the force is applied at an angle, such as with several slings without a suitable spreader bar, the allowable loading becomes much less.
by Russ Hanscom
Mon Mar 16, 2020 10:01 pm
Forum: General Discussion
Topic: Mystery drill bits
Replies: 15
Views: 1001

Re: Mystery drill bits

Boing surplus used to sell them in large quantities, 20 for $1, or some ridiculously low price, so there is definitely an aircraft connection. I uses them for pilot holes.
by Russ Hanscom
Mon Mar 16, 2020 1:30 pm
Forum: General Discussion
Topic: Engine hoist capacity beware
Replies: 24
Views: 1608

Re: Engine hoist capacity beware

Years ago, I undertook to design an engine hoist. After applying reasonable safety factors and reinforcing wear points, I determined I could not buy the metal for the price at which imports were selling. A bit of reverse engineering suggests that their safety factors are about 1; no allowance for we...
by Russ Hanscom
Sun Mar 15, 2020 5:45 pm
Forum: General Discussion
Topic: solid rivets
Replies: 33
Views: 2039

Re: solid rivets

Very impressive trimmer!
by Russ Hanscom
Sun Mar 15, 2020 12:34 pm
Forum: General Discussion
Topic: Time to get some stuff done in the shop
Replies: 9
Views: 607

Re: Time to get some stuff done in the shop

Agreed, just did a bit of essential shop cleaning, a few minor repairs, and looking at a list of small projects to clear the pile on the bench. Got enough TP and wine to last at least a month. Made a dog food run yesterday and found that isle almost stripped. People are stocking up on strange things.