Re: Tron Discography build thread - Disc #1 (currently on hold)
Hi all
Bout time I gave you guys an update I reckon.
After giving it some considerable thought, I'm going to be partly using the cavity moulding method to make the final production mould as it has advantages over other moulding techniques that I can use. It will differ from most as I don't plan on using clay to cover the disc with first. Instead, I'm going to see if I can make a jacket buck (incliding motor shaft mount) instead. Clay is a little too dependant on sculpting skills of which I only posses a little, and the entire mould needs to be as symmetrical as I can make it if it's going to work.
The idea is I can use the shaft mount hole to line it up dead centre with the disc underneath once the buck is removed. When both both jacket and disc are secured to a removable mid section, I can then fill the void with silicone. The other side I can do like any other two part mould as it won't be spun like the main section.
I think the jacket will have to be fibreglass this time, loath though I am to use it. It's strength and lightwaight characteristics are the only sure way to reduce shake if any small imbalances exist, though a bit of light modding will sort that out should it come to that.
More soon....