PR mold

[dozuki]

I have turned one or two PR pens fusing the square molds and that works o.k/
I was wondering if anyone had any ideas for round molds that would require less shaping. Also should the cut produce castings that are like sand?

 

[PenWorks]

Ed and others are using round ice cube trays for casting, that seems to work for them. They are round and they have less waist. I think they got them at Wal Mart. I still cast in a flat mold. The shavings should peel off like a ribbon. If your shavings are like sand, maybe to much hardener or your chisels could also be the cause.

 

[Mikey]

I think I also read somewhere that some use the plastic water pipe (CPVC) I know the 3/4 pipe should be pretty close to the ID you need for round molds.

 

[dozuki]

Thnks for the suggestons I will be on my way to lowes and wall mart very soon.[][}]

 

[alamocdc]

Yep, the ice cube trays for bottles from WallyWorld. Makes a 3/4" cylinder. Works great and only costs about $4 IIRC.

 

[TomServo]

If you're getting 'sand' you could be using the wrong tool or too much pressure - PR likes very light cuts and a scraper with a burr. Mileage (and opinion) may vary

edit: if your PR still smells, leaving the shavings on your lathe bed (or any steel/iron) could cause it to rust!