Quote:
Originally posted by bigben2k
With the same argument, a Spir@l would be very difficult, no?
|
It would be just as hard with that small of an endmill. i used a 1/4" endmill to make this spiral:
The smaller the endmill the more flex it will have in it and the harder it will be to make a thin channel wall while attempting to do a curve. Strait lines are not so bad as there is only force applied in one direction causing less vibration, but while doing a curve you have force applied from different angles causing more vibration and ultimatly collapsing the channel wall. 1/16" channel wall was as good as I could get with a 1/4" I think I could do it with a 1/8" but not likely with anything smaller. I think the endmill would break anyway. That is a lot of force applied trying to make a curve. If you had CNC and a lot of patience and a few weeks to mill it is definatly possible. You just need to run extreamly shollow passes and ALOT of them. That would probably be the best bet. But if you did it that way just plan on making one.
I well equiped machine shop with the best and tightest equipment can probably do this. Although talking them into doing it is another story. And if they did it would cost you more body parts than you have.
I cannot find an easy, cheap solution for doing this, but I am by no means an expert on the subject. It would be best to take it to a real machine shop. And if they just laugh at you it can be done, but if you have to go to the hospital to remove one of their boots I wouldn't count on it.
If you want to go expensive I would try wire EDM.