Hello All,
I am piecing a new gantry wood router together from my latest ebay scavenging. In doing so, it has got me leaning in the direction of eventually having a bit of variance in the chosen servos on the 3 axis (in size and voltage).
Since my previous machines have had identical motors on x,y,z so it feels a little odd in deviating from that, but the more I think about it, the duty, or about of work doled out by each axis, does seem to be spread out a bit unevenly.
Looking at the amount of force required to move each axis and the weight each is holding/pushing, here is my very unscientific/guess breakdown of the percentage of power required to move each axis:
X) 60% (needs to push/pull weight of Y and Z assemblies and gantry itself)
Y) 25% (needs to push/pull weight of Z assembly)
Z) 15 % (needs to push into material assisted by gravity/lift its own weight)
The above figures are a bit exaggerated, but illustrate my question-
Does anyone else run mismatched servo sizes on their machines?
I know it would be convenient to have them all be identical, but due to the recycling/scrap aspect of this machine, that might not happen- at least not for the first incarnation.
Thanks, Mike