Search found 152 matches

by TRX
Wed Feb 19, 2020 3:15 pm
Forum: Milling Machines
Topic: Laser Align Round Head Mill Drill.
Replies: 12
Views: 847

Re: Laser Align Round Head Mill Drill.

Try unbolting the column from the base, make sure there's no swarf or paint blobs trapped between the base and the bottom casting on the column. You might try re-indexing the column if that doesn't square it up. Note the quill might not be square to the column, either... you can check that pretty ea...
by TRX
Wed Feb 19, 2020 3:05 pm
Forum: General Discussion
Topic: LED Shop Lighting
Replies: 139
Views: 13541

Re: LED Shop Lighting

LED lamps for lighting wear out by slowly dimming (much more slowly than incandescents or fluorescents). End of life is defined as when the light output drops below a specified level. Incandescents simply quit working one day. The CFLs all died with, apparently, power supply failures - blackened ba...
by TRX
Fri Feb 14, 2020 3:11 pm
Forum: General Discussion
Topic: LED Shop Lighting
Replies: 139
Views: 13541

Re: LED Shop Lighting

Last year I bought a 6-pack of LED bulbs to fit my 4-foot shop lights. I finally got around to taking the first fixture down and apart. Hm. I have no idea how old it was, but the plastic ends were snapped into divots in the metal housing. Even with a long, thin screwdriver I broke most of the mounti...
by TRX
Mon Feb 03, 2020 4:09 pm
Forum: Lathes
Topic: Vee belts for lathe
Replies: 5
Views: 1299

Re: Vee belts for lathe

The link belts won't grip the pulleys as tightly in reverse, and can slip. The only time I've ever used reverse was when threading away from the headstock. That doesn't take much oomph. Note if you put new V belts on the Sheldon, it probably uses "industrial" or "compressor" belts, which are shallow...
by TRX
Mon Feb 03, 2020 4:00 pm
Forum: Lathes
Topic: Considering a DRO
Replies: 32
Views: 3676

Re: Considering a DRO

am considering putting one one on my lathe. I am a bit pressed for space for the cross slide Bought a brand new lathe last year. The budget would have stretched to DROs. I chose not to get them. The decision against the longitudinal axis was easy enough; I seldom machine anything length-critical in...
by TRX
Thu Dec 05, 2019 6:14 pm
Forum: General Discussion
Topic: Interrupted Cut Removes Tool Point
Replies: 27
Views: 3684

Re: Interrupted Cut Removes Tool Point

I bought some import "HSS" bits that looked perfectly normal, bright ground finish. They're apparently plain steel; aluminum will wear away the edge quickly, and they won't really cut mild steel at all, just gouging troughs after the edge rounds off.
by TRX
Tue Oct 29, 2019 12:07 am
Forum: Lathes
Topic: Winding springs
Replies: 16
Views: 4298

Re: Winding springs

If the spring is large enough you can bend the end coils with pliers so you don't have to grind as much. But it won't be a proper "closed end" spring.
by TRX
Mon Feb 11, 2019 9:40 pm
Forum: Gunsmithing
Topic: Enfield p14 question
Replies: 5
Views: 3794

In case you didn't know, Nicolaus & Associates has a book with the US Army Ordnance drawings for the P17.

https://www.nicolausassociates.com/M1917.htm

It has all the toleranced drawings, heat treat, and finish information to make a P17 from scratch.
by TRX
Tue Jan 01, 2019 3:27 pm
Forum: General Discussion
Topic: Speaking of Shop Realities ...
Replies: 25
Views: 7043

Re: Speaking of Shop Realities ...

When I need a 12" piece of 1" round bar, and the longest pieces I have on hand are 11-1/4, 11-1/2, and 11-3/4"...

It would be funny if similar things didn't happen so often. So a lot of projects start with "weld up two small pieces into a big-enough piece..."
by TRX
Tue Nov 06, 2018 2:46 pm
Forum: General Discussion
Topic: Shop realities
Replies: 68
Views: 13473

Long runs of sewer line are tricky with those macerator toilet pumps; I've installed many of them. The check valves always leak, so the pump cycles from time to time. if the power is off, bad things can happen. Despite being a fairly established product - I remember ads in Popular Mechanics etc. fo...
by TRX
Tue Nov 06, 2018 2:39 pm
Forum: General Discussion
Topic: Shop realities
Replies: 68
Views: 13473

pinhole leak in the bottom of the tank Check your local propane place. They may have a collection of expired propane tanks that are no longer lawful to refill. Unscrew the valves, wash them out with soap and water (the odorant builds up inside the tank), then manifold as many of them together as ne...
by TRX
Tue Nov 06, 2018 2:33 pm
Forum: General Discussion
Topic: Shop realities
Replies: 68
Views: 13473

My lines are reasonably tight, so it doesn't cycle often. My lines are still airtight 28 years after installation. The chucks always leaked a little air, and still do. Enough that I plugged off several of them that I seldom use. I probably ought to put an elbow, pigtail, and ball valve on each air ...