Brian Oldford | 25/01/2017 15:49:22 |
![]() 686 forum posts 18 photos | An alternative might be. http://modelenginenews.org/meng/edm/p1.html |
Tinus Deysel | 26/01/2017 13:02:47 |
5 forum posts | I carved a loco wheel of 7.5 inches dia out of a beeswax/candle wax block,then added wax counterweight,then embedded this in fire cement to make a provisional mould.When the fire cement set ,it warmed up enough to melt out the wax.I then cast a hard lead alloy(mostly wheelweights) in this. The lead alloy wheel was then cleaned up and the spokes tapered from front to back,and used as pattern to cast aluminium in green sand.The alu pattern(three, with differing counterweights)were given to a local foundry who produced beautiful wheel castings for eventual use in my USRA 0-8-0 tender switcher in 7.25 gauge now finally under construction(if hacksawing and filing 20 mm thick bar frames could be called construction! |
Chris Hammond | 26/01/2017 15:14:34 |
54 forum posts 3 photos | Thanks for the info Tinus. I've had a price in from one foundry so far - looking around the £16 per wheel mark, which, I guess for the work involved is reasonable. However, thinking back to what Jason mentioned, as the wheels are hidden by counterweights, I may be tempted, to turn them out of bar stock as solids. Does that make sense or would I be asked to leave the locomotive purist guild?
|
Please login to post a reply.
Want the latest issue of Model Engineer or Model Engineers' Workshop? Use our magazine locator links to find your nearest stockist!
Sign up to our newsletter and get a free digital issue.
You can unsubscribe at anytime. View our privacy policy at www.mortons.co.uk/privacy
You can contact us by phone, mail or email about the magazines including becoming a contributor, submitting reader's letters or making queries about articles. You can also get in touch about this website, advertising or other general issues.
Click THIS LINK for full contact details.
For subscription issues please see THIS LINK.