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| Machinable wax |
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| John Stevenson:
I'm using mine to do the toast, will try later................ :wave: John S. |
| PTsideshow:
For smaller building up of the wax parts for casting trees and when doing multiple vents etc. what can be used is an alcohol lamp with metal bladed spatula. You can try using your torch and a flat section of metal in a heat proof handle for small cracks and voids. Sticky wax for repair and the paste wax below for holes. The wax pens are a modified soldering iron with assorted thin flat shaped blades for the work that is being done. Some of the pens are battery powered small tipped devices for spure and vent joining. In the paper crafting area, scrapbooking and such they have small hand held heat guns that can give high heat to smaller concentrated area's which would be great for repairing splits like yours. Have you thought about slush casting the wax, Red Casting Wax is a hard casting wax that holds great detail. It is melted and poured into molds. After a short period the unsolidified wax is poured out of the mold leaving a wax shell conforming to the the interior. This process of "slush casting" is repeated several times to build up the required wax thickness. This wax shell is then used as a pattern in the investment shell casting process. Ring And Ball SofteningPoint: 77°C/170°F I haven't tried it yet but a lot of the auto parts and general parts casting companies are going this route. Of course the system is automated. They had a bronze casting segment on one of the cable shows were they were casting 18" tall sculptures by the slush cast method but again you would have to have a way of heating up all the wax. |
| gldwight:
Hey guys, what's happened with this project? No posts since late Feb, here it is Apr 18th. Sure doesn't seem like the project was finished or goals met. Thanks much, George |
| Dean W:
George, Ade cast up a huge chunk of wax and used it to machine a full sized mock up of his oil sump, and has since come a long way on the real article. See his project thread at this link: http://madmodder.net/index.php?topic=2726.0 Dean |
| AdeV:
--- Quote from: gldwight on April 18, 2010, 02:30:14 PM ---Hey guys, what's happened with this project? No posts since late Feb, here it is Apr 18th. Sure doesn't seem like the project was finished or goals met. --- End quote --- Actually, for me the goals were pretty much met completely: I managed to cast my sump practice piece. I have since remelted some of the shavings; they came out a fairly different colour (much closer to Old Plasticene Brown than the baby blue/green it started out as). As suspected, the aluminium bits which have inevitably got mixed in with the wax swarf sunk to the bottom of the melt; so they're easy enough to remove. I've not taken any photos or done any machining on the re-melt yet. |
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