Search found 1045 matches

by BigDumbDinosaur
Sat Oct 17, 2020 12:05 am
Forum: Riding Scale Railroading
Topic: Electric drive motor specs
Replies: 30
Views: 835

Re: Electric drive motor specs

One big problem I foresee is how to mount the motors so they are free to move up and down with the axle as it moves in the journals and side frame. Maybe BDD’s method of using an idler arm and idler sprocket will work. If it were me doing this and I were using wheelchair motors (which I wouldn't), ...
by BigDumbDinosaur
Fri Oct 16, 2020 10:28 pm
Forum: General Discussion
Topic: Bluing Blackening Steel
Replies: 10
Views: 303

Re: Bluing Blackening Steel

armscor 1 wrote:
Fri Oct 16, 2020 8:47 pm
I'm using G96, made in Paterson N.J, USA, simply
apply paste with brush and rinse with water, durable and wear resistant.
No rusting issues with a light coating of oil.
Very pleased with results.
A link to the actual product would be helpful. A search engine returns 1000s of results on "G96."
by BigDumbDinosaur
Fri Oct 16, 2020 8:57 pm
Forum: General Discussion
Topic: Bearing issue?
Replies: 14
Views: 260

Re: Bearing issue?

I shifted the case into "neutral" and rotated the chuck and there was an obvious light clicking noise from the final ball bearing. No rumble at all. Nothing noticeable to the hand when rotating the chuck as well. First, what John asked. Is this happening with the carriage, cross-slide, etc. locked?...
by BigDumbDinosaur
Thu Oct 15, 2020 2:35 pm
Forum: Riding Scale Railroading
Topic: Electric drive motor specs
Replies: 30
Views: 835

Re: Electric drive motor specs

Somebody mentioned one center sill and light laterals for passenger coaches. Think I will try that for my next coach build. Maybe use 2 ship channel, back to back, down the center. Easier to drill and attach stuff with bolts or rivets. Ship-and-car channel tends to be on the heavy side for its bend...
by BigDumbDinosaur
Thu Oct 15, 2020 2:02 pm
Forum: The Junk Drawer
Topic: Hobby or Obsession?
Replies: 11
Views: 589

Re: Hobby or Obsession?

...in my area, Southern VT mountains, there are a number of people that have a reputation for getting small engines to run but my experience is that even though they demonstrate how they can just pull the handle and listen to noise, once I take the engine home it will not start for me. A small engi...
by BigDumbDinosaur
Wed Oct 14, 2020 12:47 am
Forum: Riding Scale Railroading
Topic: Electric drive motor specs
Replies: 30
Views: 835

Re: Electric drive motor specs

Erskine Tramway wrote:
Tue Oct 13, 2020 11:48 pm
Steel cars are noisy inside.
Just like a real railroad car. :D
by BigDumbDinosaur
Wed Oct 14, 2020 12:43 am
Forum: Lathes
Topic: Lathe table build
Replies: 24
Views: 1312

Re: Lathe table build

This thing is going to end up looking too good to be having chips and oil flying all over it. :D
by BigDumbDinosaur
Tue Oct 13, 2020 4:45 pm
Forum: Riding Scale Railroading
Topic: Electric drive motor specs
Replies: 30
Views: 835

Re: Electric drive motor specs

Our coach frames were made of 2"x2" 'T' iron, with truss rods. Rectangular steel tubing can work well as a center sill, and for any given weight of material, will be two to three times more resistant to bending than T-iron. Also, a tubing structure will be stiffer in torsion and will make it easier...
by BigDumbDinosaur
Mon Oct 12, 2020 10:35 pm
Forum: General Discussion
Topic: DRO Functions
Replies: 9
Views: 402

Re: DRO Functions

John Hasler wrote:
Mon Oct 12, 2020 2:33 pm
Where can I find that tool load equation?
I was using "equation" in a rhetorical sense. :)
by BigDumbDinosaur
Mon Oct 12, 2020 1:52 pm
Forum: Riding Scale Railroading
Topic: Electric drive motor specs
Replies: 30
Views: 835

Re: Electric drive motor specs

Interesting to think about aluminium frame construction. Which I‘ve never done. The weight would go way down. Actually, you might be disappointed at the weight savings, not to mention complications related to fabrication. For loading purposes, a railroad car may be treated as a simple beam supporte...
by BigDumbDinosaur
Mon Oct 12, 2020 12:52 pm
Forum: General Discussion
Topic: DRO Functions
Replies: 9
Views: 402

Re: DRO Functions

If you mean chip load, no. Tool parameters, speed, and feed determine it. https://cimquest-inc.com/what-is-chip-load/ Couldn't open that page. Something about COVID went front-and-center and would not allow access to the content behind it. I belatedly saw where I copied "tooth load" from the OP. :D...
by BigDumbDinosaur
Mon Oct 12, 2020 1:27 am
Forum: General Discussion
Topic: DRO Functions
Replies: 9
Views: 402

Re: DRO Functions

Touch DRO provides federate information. Actually if you add the tachometer functionality to it and input your tool parameters it can even report the tooth load while you mill Sent from my SM-N975F using Tapatalk Here, let me fix that for you: :D Actually if you add the tachometer functionality to ...