Search found 1974 matches

by Steggy
Mon Feb 15, 2021 1:32 am
Forum: Lathes
Topic: Show us your lathe!
Replies: 597
Views: 356479

Re: Show us your lathe!

curtis cutter wrote: Sun Feb 14, 2021 8:59 pm
neanderman wrote: Fri Jan 08, 2021 11:00 pm Very cool to have the receipt!
According to https://www.usinflationcalculator.com/ the $301.00 in 1925 dollars would be equivalent to $4,500.00 in 2021.
4500 Washingtons for a quality lathe is a good deal, eh?
by Steggy
Sun Feb 14, 2021 2:48 am
Forum: Lathes
Topic: Prazi SD300 lathe lubrication
Replies: 10
Views: 7210

Re: Prazi SD300 lathe lubrication

It is key part of the drive system. The motor drives the pulley via a V belt and that pulley, which spins on a stationary shaft, drives everything else. So I know that that pulley and shaft need lubrication. My question is how to lube them. If that sheave is acting as an idler, I suspect it's mount...
by Steggy
Sat Feb 13, 2021 12:18 pm
Forum: Live Steam
Topic: Hauling your locomotive
Replies: 41
Views: 19715

Re: Hauling your locomotive

I've always heard that torsion axles are a must on a tandem axles trailer, then sway control hitch will make towing long distances much more "pleasant" The tandem axle leaf spring vs. torsion suspension argument has been going on forever. In favor of using torsion suspension is the traile...
by Steggy
Sat Feb 13, 2021 12:50 am
Forum: Lathes
Topic: motor size
Replies: 13
Views: 11289

Re: motor size

Bill Shields wrote: Fri Feb 12, 2021 10:21 pmA 3 hp single phase motor is not the best of ideas.
Not only that, such a motor will be significantly more costly than a three-phase motor of the same power and will wallop the power line at startup.
by Steggy
Wed Feb 10, 2021 1:25 pm
Forum: General Discussion
Topic: Another dumb INVERTER question
Replies: 23
Views: 13354

Re: Another dumb INVERTER question

if you think that any type of speed reduction (like the variator) is not a torque increaser...you should stop and think again. That is correct. In any constant-horsepower situation, RPM and torque are inversely and exactly proportional. As some wiseguy once noted, use enough gears and you can get a...
by Steggy
Wed Feb 10, 2021 1:22 pm
Forum: General Discussion
Topic: Another dumb INVERTER question
Replies: 23
Views: 13354

Re: Another dumb INVERTER question

I have an old 3-phase motor lathe and a similar drillpress. I added a VFD for speed control. Both of these motors are physically big for their ratings, and really old. Motors have undergone several frame size revisions over the years. As the materials used to insulate the stator windings got better...
by Steggy
Tue Feb 09, 2021 10:45 pm
Forum: Home Shop CNC & 3D Printing
Topic: Will it manage?
Replies: 11
Views: 14595

Re: Will it manage?

ctwo wrote: Tue Feb 09, 2021 3:29 pm I bet everyone is looking up the CNC-3040 now.
Not me. The OP evidently wasn't sufficiently motivated to do some research before posting his query.
by Steggy
Sun Feb 07, 2021 5:32 pm
Forum: Live Steam
Topic: Future of Superscale Locomotive
Replies: 60
Views: 75018

Re: Future of Superscale Locomotive

Chris Hollands wrote: Sun Feb 07, 2021 5:03 pm David Bortz has Superscale now and has for about 2 years ?
Easy to deal with and still the same great products .
I didn't get the memo. I would have though Jen Carey would have announced something here.
by Steggy
Sun Feb 07, 2021 3:57 pm
Forum: General Discussion
Topic: 15kw gen bearing problem
Replies: 11
Views: 5994

Re: 15kw gen bearing problem

I didn't find it easy at all. I tried several things that didn't work, the machine kept 'hunting', surging up and down. As an experiment, I used a "smart' regulator; a human. I told him to operate the fuel lever so as to keep the tachometer in a certain place; and he did, even as I welded with...
by Steggy
Sun Feb 07, 2021 3:50 pm
Forum: General Discussion
Topic: 3 phase motor replacement
Replies: 25
Views: 12134

Re: 3 phase motor replacement

pete wrote: Sun Feb 07, 2021 10:25 amYep I'd agree BDD. I'm just not sure how small they go before there not available though.
Well, that's where having a lathe and knowing how to use it comes in... :D
by Steggy
Sun Feb 07, 2021 3:49 pm
Forum: Live Steam
Topic: Future of Superscale Locomotive
Replies: 60
Views: 75018

Re: Future of Superscale Locomotive

Jen Carey has not been on Chaski for nearly three years. No one seems to know what became of the deal to sell Superscale.
by Steggy
Sun Feb 07, 2021 1:41 am
Forum: General Discussion
Topic: 3 phase motor replacement
Replies: 25
Views: 12134

Re: 3 phase motor replacement

But I'm no fan of using set screws to retain any pulley. Yes they've been proven to work ok in most cases, there's just far better and more durable methods. The ideal way to retain anything on a shaft is with a split-taper bushing. Those things lock so tightly onto the shaft you can actually dispen...