Dave wrote:
This is a key thing in simplifying the math. In theory you can account for
offsets from this center of rotation, but if the sled then rotates, things
change. (andd we’re having enough problems with getting the math right as it is)
Ahem, soooooooooo I have been quietly playing around with this idea in the background of the other stuff I’ve been doing, for like…months, I was going to test it a bit more before I talked about it, buuuuut:
The main advantages:
- With some clever geometry you can get the attachment points all the same height.
- You can get a sub-5kg assembly.
- You can fit a Makita router easily.
go to a spindle instead of the router and you can save more wight
- I think all these mean you could run a higher speed lower torque set of motors and push feedrates higher: (hence this thread: Feedrate limits of the Maslow (theoretical).
you will be pushing the rigidity of the system, but you are working on that as
well.
However.
(And this is why I hadn’t posted it yet)
I’ve only tried it with 2.5m leads, and I am not sure how 5+ metre leads would work, which is what you’d need for a full sheet. Voltage drop and interference could well scupper the whole thing.
the electronics are light, so I don’t see a lot of advantage in moving the
controller board off of the sled, but I look forward to see your work.
David Lang