roller test stand

This stand has a section of Gargraves on it, a 91 breaker and Bacchus rollers. It's longer than shown.

Roger

John

I copied everything I did on this project from previous threads about the subject.

Like I painted by the numbers. I have posted this before as well .

Have fun

Larry

Ron

This old forum entry had a home made adjustable stand that a number of forunites made. Simple, and adjustable

https://ogrforum.ogaugerr.com/t...57#41271595299300857

I just have a 40" chunk of Atlas track that I toss on the bench and put my rollers on.

Here is another thread regarding the roller bases.

https://ogrforum.ogaugerr.com/t...t-stationary-rollers

I knew if I looked long enough, I'd find the link with detailed plans.

https://ogrforum.ogaugerr.com/f...e%20Test%20Stand.pdf

DELETED as duplicate information.

gunrunnerjohn posted:

I just have a 40" chunk of Atlas track that I toss on the bench and put my rollers on.

Can you test run a heavy scale steam engine up to full speed (120 SMPH) this way with the rollers just sitting on top of the rails?

I've had no problem testing stuff at speed on the rollers on the track.  As long as the rollers are all properly under the wheels, it's smooth sailing.   OTOH, I've probably never actually tried to run at full throttle, more like half-throttle.  I see no diagnostic information to be gained by running all out, and I know nobody that runs that way.

Made mine like John S of NJHR.

Here is a link to the pdf file of JohnS' test bench construction and photos referred to above by Don.

Thank you Carl.

gunrunnerjohn posted:

I've had no problem testing stuff at speed on the rollers on the track.  As long as the rollers are all properly under the wheels, it's smooth sailing.   OTOH, I've probably never actually tried to run at full throttle, more like half-throttle.  I see no diagnostic information to be gained by running all out, and I know nobody that runs that way.

Did not think so.  When I received first set of rollers tried  them sitting only on track. And big engines like the S1, Big Boy, S2 did not like it at speed.  The physics of reciprocal  and rotational motion even in miniature take over.

I use my Dynamic Test stands first to break in engines at all speeds and both forward and reverse. 

I've run all of those at pretty good speed with just the rollers on the track.  I'm not sure why they'd be any less stable than the various ideas for test tracks I've seen, and it sure hasn't been my experience. 

I see nothing to be gained by running a locomotive at full throttle on a stationary stand, but I can see where it could cause issues with some steamers especially.  I can think of no diagnostic value for that kind of operation for anything I do in maintenance and/or upgrading.  I also don't see how full throttle operation is of benefit in any break-in routine, so we'll have to agree to disagree about the utility of that operation. My idea of a break-in is to put it on the tracks, test all the functions, then run it for a few laps, and finally give it a nice load to pull for a spell.

I have had a few with issues with speed control failing and the locomotive taking off at full throttle on the blocks with no ill effects, and none of them escaped the rollers.

PRRronbh posted:

 

Ron

Ron, why do you have a case for carrying your dynamic test stands?

Pingman posted:

PRRronbh posted:

 

Ron

Ron, why do you have a case for carrying your dynamic test stands?

Carl, when I show at trains shows I have a engine running on the stand to attrack attention.   And test run an engine for a perspective buyer.  And have tested engines for other folks.

Ron