Search found 1337 matches
- Tue Jan 19, 2021 6:09 pm
- Forum: Milling Machines
- Topic: ROCKWELL 21-122 milling machine REBUILD
- Replies: 8
- Views: 2476
Re: ROCKWELL 21-122 milling machine REBUILD
That should be illegal.
- Fri Jan 15, 2021 10:39 am
- Forum: General Discussion
- Topic: angular contact bearings
- Replies: 19
- Views: 961
Re: angular contact bearings
I made something like that for my swinging mini-hoist. The load on the end of the arm is maximum 1,000 lb, but due to the low headroom, and therefor the very short pivot, the leverage on the bearings is rather high. I used a couple of leftover bearings I had, one is a used double row wheel bearing f...
- Tue Jan 12, 2021 10:44 am
- Forum: General Discussion
- Topic: 1 in 12 taper?
- Replies: 11
- Views: 400
Re: 1 in 12 taper?
I've only done it on a lathe; I just ignored the trig and the degrees, and set the compound slide at [in my case] 5:1 for a 10:1 taper. I did that by putting a dial gauge on it against a test bar, and counting off 10 revolutions of the compound screw; when the dial gauge showed a reading equal to 2 ...
Re: Mystery.
Stolen for scrap? Large lathes can have strange economics. Large shops usually have financing and contracts, and buy new machines. Small independent shops can't house them and rarely have need of a large machine. Demand is small. I used to live in India; new shops were opening all the time, financed...
- Thu Jan 07, 2021 4:09 pm
- Forum: General Discussion
- Topic: Creating spinning top out of Aluminum
- Replies: 14
- Views: 1933
- Tue Jan 05, 2021 4:03 pm
- Forum: General Discussion
- Topic: Compressor timer switch question
- Replies: 35
- Views: 1337
Re: Compressor timer switch question
Something to remember is that most home shop compressors have unloader valves. If you use a device other than the pressure switch to stop the power, the unloader valve won't get triggered and when restarted the motor could be stalled [some will melt, ask how I know], or the belt might slip to destru...
- Mon Jan 04, 2021 4:23 pm
- Forum: General Discussion
- Topic: 10-start left- and right-hand thread
- Replies: 8
- Views: 534
Re: 10-start left- and right-hand thread
I'm not much into making things that have no purpose; but that Russian guy sounded like he was having great fun all the way through. Yeah, using a motorized tool as a thread cutter; that's a neat idea. But he was cutting aluminum. If you want to do that with a harder material, the load on the tool m...
- Mon Jan 04, 2021 7:18 am
- Forum: General Discussion
- Topic: Compressor timer switch question
- Replies: 35
- Views: 1337
Re: Compressor timer switch question
What you're looking for is a general use programable delay relay / time relay. Some have many functions you can select with micro-slide switches. So each time it runs the timer starts, then when the power is interrupted and starts again the time starts from the beginning. I use a couple of them for ...
- Sun Jan 03, 2021 6:13 pm
- Forum: 3-in-1 Metalworking Machines
- Topic: VFD to 2 motors
- Replies: 27
- Views: 1510
Re: VFD to 2 motors
I got mine on ebay for $50.
Sometimes you can get a bargain if you wait.
Sometimes you can get a bargain if you wait.
- Sat Jan 02, 2021 12:36 pm
- Forum: 3-in-1 Metalworking Machines
- Topic: VFD to 2 motors
- Replies: 27
- Views: 1510
Re: VFD to 2 motors
I think he means a plug outlet.
- Sat Jan 02, 2021 11:58 am
- Forum: General Discussion
- Topic: Iowa Class Battleship Machine Shop
- Replies: 13
- Views: 1532
Re: Iowa Class Battleship Machine Shop
were the machines usable?
- Fri Jan 01, 2021 3:20 am
- Forum: General Discussion
- Topic: Conic Clutch design
- Replies: 6
- Views: 491
Re: Conic Clutch design
There is also the issues of galling and sticking, spinning and slipping... I looked into it once for a project I never built. Design will depend on the materials of the parts, the force holding them together when engaged, the force releasing them, the torque acting on them, and so on. If someone has...