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Author Previous Topic: Rusty Stumps - Reed&DeYoung Tobacconists Shop Topic Next Topic: New South River Modelworks kit annnounced  

Ray46
Engine Wiper

Posted - 08/07/2013 :  5:32:34 PM  Show Profile  Reply with Quote
I need some HO scale pulleys for a Ball Signal I plan on constructing. (I know they can be purchased but would like to try this as a scratch building project) I thought about using tube and rod styrene but I haven't tried it yet. Does anyone have any ideas?

Ray

Country: USA | Posts: 265

JeffB
Crew Chief

Posted - 08/07/2013 :  6:03:11 PM  Show Profile  Reply with Quote
Ray,
I have scratchbuilt pulleys using styrene discs made with a small punch. I make three discs, two that are the outer diameter and a smaller one from thicker styrene. I then sandwhich the smaller disc between the two larger discs.

Jeff Betcher



Country: Canada | Posts: 700 Go to Top of Page

JeffB
Crew Chief

Posted - 08/07/2013 :  6:19:05 PM  Show Profile  Reply with Quote
Here's some pictures:







I use a small triangle file to refine the shape and the middle part of the pulley.

The quality of the pictures wasn't as good as I thought but I think they get the idea across.

Hope this helps,

Jeff Betcher



Country: Canada | Posts: 700 Go to Top of Page

Mario Rapinett
Fireman



Posted - 08/07/2013 :  7:08:30 PM  Show Profile  Reply with Quote



Country: Australia | Posts: 5853 Go to Top of Page

desertdrover
Engineer



Posted - 08/07/2013 :  7:22:09 PM  Show Profile  Reply with Quote
Well Jeff, I for one think your method is outstanding. And, this is a build I will remember for the future when it comes to needing any type of pulley. Thanks for sharing and posting your idea!


Louis
Pacific Northwest Logging in the East Coast
Post count: 5000 posts added to below count.

Country: USA | Posts: 15202 Go to Top of Page

closetguy
Fireman

Premium Member


Posted - 08/07/2013 :  7:41:09 PM  Show Profile  Visit closetguy's Homepage  Reply with Quote
Wow! Yes! Thank you
Mike M



Country: USA | Posts: 1855 Go to Top of Page

EM-1
Engine Wiper



Posted - 08/07/2013 :  11:16:25 PM  Show Profile  Visit EM-1's Homepage  Send EM-1 a Yahoo! Message  Reply with Quote
Sadly, I am spoilt.....I got a Unimat, lathe to turn any size I want/need from brass or aluminum...BUT this is a quick way of make some fast....what do you use to make the disks with? Hole punch, "center" ?????


Edited by - EM-1 on 08/07/2013 11:17:50 PM

Country: USA | Posts: 343 Go to Top of Page

Wallace
Engine Wiper

Posted - 08/07/2013 :  11:18:19 PM  Show Profile  Reply with Quote
Clamp a brass rod in a hand-drill, which has been held by a bench vise. As the rod turns, hold a hack-saw or Zona saw blade against it to cut a groove as deep as you want. Mark the center of rotation on the end; (a small nub will indicate this when you cut off the grooved piece). Drill for the shaft. Side-plates can be made from sheet brass.
I have a lathe, but that's too expensive. I have made many "turnings" from the rod-in-a-hand-drill method.



Country: USA | Posts: 372 Go to Top of Page

JeffB
Crew Chief

Posted - 08/08/2013 :  12:03:42 AM  Show Profile  Reply with Quote
Thanks, guys. I use anything that gives me a disc the size I want. A leather punch works well, a hole punch, a piece of aluminum tube that has been sanded on the end on the outside to sharpen the sides. The key is to try to make the discs as clean as possible. Any fine tuning can be done with a file.

Jeff



Country: Canada | Posts: 700 Go to Top of Page

hon3_rr
Fireman

Premium Member


Posted - 08/08/2013 :  01:11:50 AM  Show Profile  Reply with Quote
Thank God for needle files.

-- KP --
Life is to short to build all of the models I want to.

Country: USA | Posts: 7220 Go to Top of Page

EM-1
Engine Wiper



Posted - 08/08/2013 :  02:46:00 AM  Show Profile  Visit EM-1's Homepage  Send EM-1 a Yahoo! Message  Reply with Quote
Wallace, Jeff,
I use a drill at times as well.....Reason? ALWAYS comes a time, to make a turning that's small when the lathe is occupied OR the Unimat is set up for machine milling of some sort!!!Never seems to fail, either....I'd love for the very reason to pick up another Unimat, one to be set up as a Lathe, and one always sat up as a Mill.......

Good little tools tho, no matter how old, as long as they are still "true"



Country: USA | Posts: 343 Go to Top of Page

Chester
Fireman



Posted - 08/08/2013 :  07:41:25 AM  Show Profile  Reply with Quote
The pulley on this cage boom was built by cutting a styrene tube into a U shape, adding sliced styrene rod for the sheave and pinning it with a smaller diameter rod. I can't remember where the hook came from.


http://modelingin1-87.blogspot.com/

Country: | Posts: 2710 Go to Top of Page

Ray46
Engine Wiper

Posted - 08/08/2013 :  10:17:38 AM  Show Profile  Reply with Quote
Thanks for all the info and photos. It's obvious that it can be done by hand (I have no lathe) and I shall give it a shot.

Ray



Country: USA | Posts: 265 Go to Top of Page

JeffB
Crew Chief

Posted - 08/08/2013 :  10:56:49 AM  Show Profile  Reply with Quote
Just goes to show that there's more than one way to skin a cat.

Jeff



Country: Canada | Posts: 700 Go to Top of Page

EM-1
Engine Wiper



Posted - 08/08/2013 :  6:24:20 PM  Show Profile  Visit EM-1's Homepage  Send EM-1 a Yahoo! Message  Reply with Quote
quote:
Originally posted by Chester

The pulley on this cage boom was built by cutting a styrene tube into a U shape, adding sliced styrene rod for the sheave and pinning it with a smaller diameter rod. I can't remember where the hook came from.




I've been pondering a way to scratchbuild a pillar crane like the one that originally came with the old Revell 2 stall engine house.....This is inspiring!



Country: USA | Posts: 343 Go to Top of Page

masonamerican
Fireman



Posted - 08/09/2013 :  2:07:55 PM  Show Profile  Reply with Quote
That is some tiny work Jeff! Thank you for the tip.

Håkan



Country: Sweden | Posts: 1755 Go to Top of Page
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