2 years ago
Quick question of curiosity here. I bought an old East German scroll saw re
cently and it has a huge cast iron bow. The reach is about 24 inches. The b
ow is a one-piece casting, integral with the base, and it's hollow right th
e way along (there's an air hose inside which blows away the sawdust). Here
's a picture:
Can someone tell me how it's possible to cast this iron bow in the foundry?
I can't figure how you can reliably and accurately support a sand core ins
ide the mould, and it's making me really curious.
By the way, if anyone recognises the brand of the saw, I'd be interested to
hear. There isn't a maker's name on the machine.