3 ms·
Very cool :) The results look really good! It looks like the pen plotter has 3 degrees of freedom, I'm just curious if you think adding any more would possibly
by anfractuosity 5y ago
Very cool :) The results look really good!
It looks like the pen plotter has 3 degrees of freedom, I'm just curious if you think adding any more would possibly have any benefits?
I've got a very cheap robot arm, I plan to teach to draw sometime, but I don't think it's going to work well, partially because the lowest servos don't seem to have enough torque and I don't think it's especially accurate/repeatable.
- aarondf 5y agoThanks! It has ~2.5 degrees of freedom. The pen servo only controls the up part of the vertical axis, gravity controls the down. What I mean to say is that the pen carriage just slides down, it is not pulled down. To solve for that we used... rubberbands. It adds a little extra downward force to ensure the ink flows.