Search found 2290 matches

by Glenn Brooks
Mon Mar 01, 2021 6:51 pm
Forum: Build Log
Topic: Great Northern GE 44 ton Center Cab Electric restoration
Replies: 32
Views: 3018

Re: Great Northern GE 44 ton Center Cab Electric restor

Today, Working to build up the motor mount. Seems like the standard EV rebuild style is to fab up a 1/2” or 3/4” motor mounting plate to bolt to the front of the motor, and a lighter supporting plate to hold the rear. Then bolt or weld the mounts to the frame. This means cutting a donut hole out the...
by Glenn Brooks
Mon Mar 01, 2021 2:30 pm
Forum: Build Log
Topic: Great Northern GE 44 ton Center Cab Electric restoration
Replies: 32
Views: 3018

Re: Great Northern GE 44 ton Center Cab Electric restoration

Ryan, It’s #50 chain. Originally I thought it was #60 and ordered some, but nope. It’s #50. Yes, the plate fits nicely inside the frame and body. Allows the truck to swivel around a 15’ radius. Also the body height is fairly tall, so plenty of vertical clearance. The one design limitation is the top...
by Glenn Brooks
Sun Feb 28, 2021 7:25 pm
Forum: Live Steam
Topic: Museum of Obsolete Drafting Technology
Replies: 45
Views: 6345

Re: Museum of Obsolete Drafting Technology

Here is a drafting process that I use quite often: indelible marker on plywood mock-up, whiteboard sketch, or graph paper sketch to retain measurements for multiple parts, followed by layout on steel plate. I punched key measuring points, such as part centers and diameters on the steel plate layup t...
by Glenn Brooks
Thu Feb 25, 2021 12:44 am
Forum: Live Steam Marketplace
Topic: New Couplers, 1.5" and 2.5"
Replies: 7
Views: 1008

Re: New Couplers, 1.5" and 2.5"

Dave, to confirm, are your existing 2.5” couplers compatible with the same size RMI couplers?

Thanks,
Glenn
by Glenn Brooks
Wed Feb 24, 2021 8:07 pm
Forum: Riding Scale Railroading
Topic: GE 23 Ton Boxcab Drawings Source
Replies: 10
Views: 627

Re: GE 23 Ton Boxcab Drawings Source

Well, 4” scale makes a bit of a difference. 😲😀 Here I was worried about stuffing a tiny little motor up against some miniature size wheels! 15” ga would be perfect to fit good sized 8” or 9” DC traction motors right between the frames, on the axles. -prototype style. My motors are 16” long, which I ...
by Glenn Brooks
Tue Feb 23, 2021 2:52 pm
Forum: Riding Scale Railroading
Topic: GE 23 Ton Boxcab Drawings Source
Replies: 10
Views: 627

Re: GE 23 Ton Boxcab Drawings Source

Ok, here is the followup from Kirk Devine, regarding his boxcab. His is a Plum Cove build. Also check out Chris Brew’s (cbrew) link - details his Boxcab build. “My box cab was a simple kit from Plumcove and didn't match any prototype. It is a simple two axle unit. I think the motors are wheelchair m...
by Glenn Brooks
Tue Feb 23, 2021 1:28 pm
Forum: Riding Scale Railroading
Topic: GE 23 Ton Boxcab Drawings Source
Replies: 10
Views: 627

Re: GE 23 Ton Boxcab Drawings Source

Link works great. The photos show a lot of valuable detail. You could probably design your own cab using the running gear and frame layout showing in the photos, and generally scaling the physical size to fit generic 7 1/2” ga width of cars (16”). Overall length 2:1 or 3:1 the width- what ever lengt...
by Glenn Brooks
Mon Feb 22, 2021 1:39 pm
Forum: Riding Scale Railroading
Topic: GE 23 Ton Boxcab Drawings Source
Replies: 10
Views: 627

Re: GE 23 Ton Boxcab Drawings Source

Hi Matt, welcome to Chaski. I couldn’t get your link to open. You might double check the link to see if it is publishing outside your system... box cabs are pretty popular with forum members, so someone should be able to assist. Also, might be helpful if you gave us a few more details about how you ...
by Glenn Brooks
Mon Feb 22, 2021 3:43 am
Forum: Build Log
Topic: Great Northern GE 44 ton Center Cab Electric restoration
Replies: 32
Views: 3018

Re: Great Northern GE 44 ton Center Cab Electric restoration

Yesterday, also welded the four base plate supports to the truck frame, and positioned the jack shaft and drive chain. Looks like everything aligns perfectly. More importantly, the chain tension appears to be within tolerances. I’ve been worried about to much slack in the chain between the idler pul...
by Glenn Brooks
Sun Feb 21, 2021 10:38 pm
Forum: Build Log
Topic: Great Northern GE 44 ton Center Cab Electric restoration
Replies: 32
Views: 3018

Re: Great Northern GE 44 ton Center Cab Electric restoration

Making some progress building out the first drive truck. Decided to go with all chain rather than drive the jack shaft with a gates cog belt. The gates belt gears are horribly expensive and the belt drive must be rigidly under tension to operate properly. So no room for slack as the axles move up an...
by Glenn Brooks
Fri Feb 19, 2021 3:05 am
Forum: General Discussion
Topic: Your thoughts on a replacement compressor
Replies: 57
Views: 1686

Re: Your thoughts on a replacement compressor

Iam in them same boat, looking for a decent size compressor for sand blasting parts in my home shop, but can never find the answer to actual CFM needed to do sand blasting. Is 18 CFM the magic number??

Thanks,
Glenn
by Glenn Brooks
Thu Feb 18, 2021 3:02 pm
Forum: Grand Scale Railroading
Topic: 12" Guage Wheel Standard
Replies: 46
Views: 39066

Re: 12" Guage Wheel Standard

People starting out in the hobby often have no idea what axle or wheel sizes they should use when building or repairing equipment. Even today, axle size and material recommendations are amongst the least documented aspect in the hobby- but are critical for safety and longevity of operation. For exam...