Cartbot with all three axes controlling the toolhead - why not? August 05, 2008 11:46PM |
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Re: Cartbot with all three axes controlling the toolhead - why not? August 06, 2008 12:01AM |
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Re: Cartbot with all three axes controlling the toolhead - why not? August 06, 2008 12:47AM |
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Re: Cartbot with all three axes controlling the toolhead - why not? August 06, 2008 01:28AM |
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Re: Cartbot with all three axes controlling the toolhead - why not? August 06, 2008 06:13AM |
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Re: Cartbot with all three axes controlling the toolhead - why not? August 27, 2008 07:49AM |
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Re: Cartbot with all three axes controlling the toolhead - why not? August 27, 2008 09:46AM |
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Re: Cartbot with all three axes controlling the toolhead - why not? August 27, 2008 10:46AM |
Registered: 15 years ago Posts: 152 |
Re: Cartbot with all three axes controlling the toolhead - why not? August 27, 2008 12:27PM |
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Re: Cartbot with all three axes controlling the toolhead - why not? August 27, 2008 04:50PM |
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Re: Cartbot with all three axes controlling the toolhead - why not? August 27, 2008 09:08PM |
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Re: Cartbot with all three axes controlling the toolhead - why not? August 28, 2008 04:44AM |
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Oh.. okayQuote
Well, the Z motor is mounted on the top of the bottom platform, with the shaft pointing up.
Then they ARE unsupprted, the bushings and the captive nut, do not support.Quote
They don't actually have to be unsupported; it's just that they would be supported by supports which are stationary relative to Z-motion.
Well, You'll need to have a connection much more complicated than that because of the need to mount the motor to the baseplate.Quote
Yeah, (and there are actually simpler ways to do it), but you still have a connection; why have a connection (which takes money/material and time resources) when you don't have to?
Yes, pulleys are hard to fabricate and expensive to buy.Quote
One of the reasons I'm looking to design my own cartbot is that the belt/pulley systems the Darwin uses seem a bit overcomplicated. That aside, adding a belt and pulleys where they are not necessary is... not necessary?
That's what I thought too, that's why I'm with the beltQuote
I would think that two synchronized motors would be even more complicated than using a belt. In any case, though, it would probably be more expensive.
Because of the threadtitel I posted my cartbotQuote
There are a few reasons I choose not to move the table, which is actually the subject of this thread (see the title). The main two reasons though, are that I figure the toolheads should be lighter than the largest build object...
Well, both ends of the y-Axis and the captive nut housing should be connected, so that's a part of 300mm length at least, that's much larger than anything else yet. Not to talk about precision here, that's not easy I'd guess.Quote
What larger parts? (Anyway, I don't personally see larger parts as a problem, it just takes a bit more printing time.)