5 axis XYZAB

Hi All -

I just recently joined these forums in hopes of requesting a bit of help. I've built a 5axis machine and hoping to do a bit of continuous 5axis motion with it. It's a rotary head ( B ) and rotary chuck (A). Essentially, I am cutting long-thin boards which needs support at both ends (hence why a C axis configuration won't meet my needs)

I recognize this is probably a bit unusual as I see support for XYZBC and XYZAC built-in, yet my searches have rendered nothing for my BA configuration. (I found one that matches dynamotion controller yet I was hoping to stick w/ linuxcnc)

My trig is pretty weak so I am wondering if one of you have created a Kinematics configuration for XYZAB supporting TCP?

If so, would you mind sharing?


Thanks you

I don't think an XYZAB 5 axis machine would be that uncommon, and the configuration would certainly be supported in Linuxcnc.

But I have no experience with a 5 axis machine, either configuring it or even using one. So I won' be much help for you there. There are a number of threads on the forum discussing the problems with setting setting up and using TCP on a 5 axis machine with Linuxcnc. Sounds like you have a lot of reading to do.

Todd wrote:

. Sounds like you have a lot of reading to do.

I've done just that, in these forums and others; hence the reason for my post. No luck, yet.

andypugh wrote:

Did you find
And then keep fiddling in a sim config until it looked close.

Yep, I've been through those docs and that's exactly what I'm doing; merging BC and AC. I just went through a test run of using vismatch + simulation to do this (lest I destroy my machine).

Also looking at this: www.dynomotion.com/forum/viewtopic.php?t=731 for the requirements.

So next I'll build the stl models then start hacking up the AC/BC examples

Anecdotally - I've had my eye on linuxcnc for many years and this is the first I've delved into vismatch, etc. I think I'm in love I can get all of this simulated without sitting my cold shopspace for early test runs