Search found 1019 matches

by BigDumbDinosaur
Sat Sep 19, 2020 12:23 am
Forum: Lathes
Topic: Sears & Roebuck model 109.20630 metal lathe
Replies: 42
Views: 11694

Re: Sears & Roebuck model 109.20630 metal lathe

spro wrote:
Fri Sep 18, 2020 8:54 pm
Bugatti ! (or Talbot Lego). They had the Style . Harold's Auburn Cords are super awesome style wise. They had a unique American "twist" about them. The transaxle set ahead of the engine and the "CV" joints were engineered.
What does any of that have to do with an old lathe?
by BigDumbDinosaur
Fri Sep 18, 2020 7:53 pm
Forum: Lathes
Topic: Champion Tool Works 12" Lathe - Carriage Auto Feed
Replies: 8
Views: 404

Re: Champion Tool Works 12" Lathe - Carriage Auto Feed

BTW, I was going ask. Did that machine come with a tail stock?
by BigDumbDinosaur
Fri Sep 18, 2020 7:44 pm
Forum: Lathes
Topic: Show us your lathe!
Replies: 438
Views: 144210

Re: Show us your lathe!

And they (power companies) actively discourage use of 3 phase even when it's available right on the property. Plus there is a sneaky little charge that gets tacked on to the utility bill of three-phase customers: the demand charge. Given that modern solid-state phase converters have matured and now...
by BigDumbDinosaur
Fri Sep 18, 2020 7:33 pm
Forum: Lathes
Topic: Estimating chuck speeds
Replies: 16
Views: 430

Re: Estimating chuck speeds

LouStule wrote:
Fri Sep 18, 2020 6:41 pm
armscor 1 wrote:
Wed Sep 16, 2020 6:16 am
20 Bucks on Ebay, LCD display with a magnet and sensor.
Use this on my Lathes and Mill, all have VFD'S.
Easy.
I found it. It looks like a perfect solution. Thanks!
Found what? Do you have a link?
by BigDumbDinosaur
Fri Sep 18, 2020 4:08 pm
Forum: Lathes
Topic: clausing 5900 power feed advice
Replies: 3
Views: 293

Re: clausing 5900 power feed advice

elm53 wrote:
Fri Sep 18, 2020 11:28 am
If you call Clausing with the model number and cereal number...
Would that be Frosted Flakes® or Mini-Wheats® you're having? :D
by BigDumbDinosaur
Fri Sep 18, 2020 3:58 pm
Forum: Lathes
Topic: Show us your lathe!
Replies: 438
Views: 144210

Re: Show us your lathe!

Single phase motors are an abhorrent historical anomaly caused by Edison's belief that domestic electricity connections were only for lights. It's just incredible that a century later, this basic technical weakpoint still exists in most of the US. And to think that Edison wanted it to all be DC... ...
by BigDumbDinosaur
Fri Sep 18, 2020 3:34 am
Forum: Lathes
Topic: Show us your lathe!
Replies: 438
Views: 144210

Re: Show us your lathe!

Your lathe looks like a very functional machine for your shop. Enjoy making things with it! RussN Thanks! It's undergoing an "engine swap" as we speak, so to speak. Out with the old single-phase boat-anchor motor and in with modern three-phase power. <snip> A VFD will be next. I'll have some photos...
by BigDumbDinosaur
Thu Sep 17, 2020 3:06 pm
Forum: Riding Scale Railroading
Topic: Electric power primer
Replies: 13
Views: 549

Re: Electric power primer

So, what do people do for gearing to start up and pull a heavy train? In full-sized practice, most traction motors are series-wound and powered by direct current. Assuming a power source whose voltage stays relatively constant under load, a DC series-wound motor is a "constant horsepower" device. I...
by BigDumbDinosaur
Thu Sep 17, 2020 11:24 am
Forum: Riding Scale Railroading
Topic: Electric power primer
Replies: 13
Views: 549

Re: Electric power primer

Basic formula for power transmission calculations:

V = (u × D) ÷ (R × 336)

R — Gear ratio.

D — Wheel diameter in inches.

u — Traction motor revolutions per minute.

V — Speed in miles per hour.
by BigDumbDinosaur
Thu Sep 17, 2020 11:05 am
Forum: General Discussion
Topic: Is this any good for way oil?
Replies: 14
Views: 454

Re: Is this any good for way oil?

Hydraulic oil is non-detergent and is available everywhere. "tractor" gear oil is also hydraulic oil and non-detergent. That is true. However oils that are intended for use on machine tool slideways are formulated to minimize the "sticktion" effect that can result in jerky tool or work motion when ...
by BigDumbDinosaur
Thu Sep 17, 2020 4:16 am
Forum: Lathes
Topic: NEWLY-ACQUIRED JET 1236PS
Replies: 87
Views: 6909

Re: NEWLY-ACQUIRED JET 1236PS

GlennW wrote:
Wed Sep 16, 2020 9:04 am
I remember seeing images of the machine being lowered through the hole in the roof/house.
The true hobbyist always finds a way to get it done—even if it means hoisting machinery through the roof. :D
by BigDumbDinosaur
Thu Sep 17, 2020 4:11 am
Forum: Lathes
Topic: Show us your lathe!
Replies: 438
Views: 144210

Re: Show us your lathe!

Your lathe looks like a very functional machine for your shop. Enjoy making things with it! RussN Thanks! It's undergoing an "engine swap" as we speak, so to speak. Out with the old single-phase boat-anchor motor and in with modern three-phase power. I actually was planning to do this some time in ...