Spherical Mold...

[chroniccodez]

Thanks for the advice One of Many. I think I will definantly use all the advice everyone here has given me.

Another question of mine is how would I determine the total volume of acrylic I would use for a globe. I am writing all my notes in a composition book for record purposes and I would like to have a formula. Lets say I want a 24" sphere with a thickness of 1". How would I determine this?

[holbieone]

give me the two radius and i can model it for you

[One of Many]

Using the inside dimension of the outer sphere and the outside dimensions of the inner sphere. Subtract the 2 volumes and divide by 2 for one half the sphere.

Sphere volume calculator

DC

[chroniccodez]

awesome ty

[jetski]

Your biggest problem is the master or the cavity shape. Since it hast to be hollow roto molding would do it, but I am not sure poly carb can be rotomolded. We do injection and roto molding. Oh we have our own tool shop and designer....Hi. If I could ask a few questions. 1st why so thick? How many do you need? There are several other rapid prototype solutions to do what you want cheaper than sla, or sls. If you want to machine a part for a pattern it will take a machine with a lot of z travel just to cut 1 hemishpear. email me direct gsilberberg@progressiv-plastics.net

[Triono]

Hello Brothers...

I am a new comer.

I want to make aluminum candle holder, with the shape like a little cup, maybe only 5 cm (dia). Can my brothers show me, what kind of metal to make this mould ?. Cast iron, or stell, or ... I dont know...

For information, I've little cnc from china, Y-3, with brand name 'king cut' that maybe can make that mould...

Thanks alot for your information...

Bye

Triono, Jogja, Indonesia