Hi everyone, I'm in the process of building my first machine...It has all taken a good while so far, and I haven't started building anything yet...Like to do a good bit of research before I do.
Sounds like a hardcore machine for a first-timer, I know, but I like to do things big when I first take the time to do it...
So far, I've ordered 25mm bearing blocks and support rails, breakout board from PMDX, 4 1200 oz-in steppers from Keling Inc, and are about to order drivers, probably Gecko or some with same specs.
My target machine has a working area of about 2.5x2.2x0.6 m (XYZ)
(Open for discussion and reduction on this point)
I bought 4 steppers to ensure that they can move the gentry properly, so I will have one on each side of it.
The router will be used to process mostly wood, and the occasional aluminium / steel pieces...
I will use mostly steel and aluminium for construction, as I'm quite familiar with working metals, and have a fairly good place to do the necessary work.
But then comes the tricky part; what should I use to drive it?
I've looked at a lot of different solutions, and the Nexen RPS system really got my attention. I've made contact with a local distributor, and they will give me a quote as soon as they get the necessary data.
I know, ballscrews are an option also, but I've read that the RPS can, in many cases, match or have a lower price than that of ballscrews, while at the same time be faster and more precise...
(Sounds like I'm taking the factorys word for it, right?)
And this is were you guys come into the picture; any idea what a "reasonable" speed, acceleration etc would be for a machine this size?
The information requested;
Total system weight kg
Max speed m/sec
Acceleration time sec
Max acceleration m/sec2
Guide System Friction µ
Degrees from Horizontal
Desired run length m
Cycles per day
I assume the weight will exceed 200+ lbs, no doubt about that, so let's just say 400+ to be on the safe side.
Guide system friction; I didn't find anything at the dealers site (marchant dice in the UK)
Max speed, acceleration time, etc, I'm open for suggestions?
Just give me YOUR honest opinion, so I have something to work with.
Any videos from youtube etc demonstration estimated speeds would be great!