Help with pinout. 2 motors (joints) on one axis. 2.8

Hey Todd, I think you posted somewhere. Can't find it, too tied. That I couldn't have a duplicate letter in the TRAJ Coordinates. I read in the manual last night that I can.

This is mine. Out of interest though. I think it works with just X Y Z as well. The joints part of the INI need XYYZ though.

[TRAJ]
COORDINATES = X Y Y Z
LINEAR_UNITS = mm
ANGULAR_UNITS = degree
DEFAULT_LINEAR_VELOCITY = 10.00
MAX_LINEAR_VELOCITY = 100.00

Pretty keen know to hook everything up and make sure it works then complete a how to thread. It works fine with Hal meter.

Happy Days

joel0407 wrote: Hey Todd, I think you posted somewhere. Can't find it, too tied. That I couldn't have a duplicate letter in the TRAJ Coordinates. I read in the manual last night that I can.

I think Todd was referring to the GEOMETRY=XYZ in the [DISPLAY] section. This controls the DROS shown on the display.

Now you've got everything sorted in your head, I'm not going to buy in to the other stuff. I did convert mine from an XYYZ to XXYZ on someones advice and I do remember changing the Hal a far bit. It did impact on limit switches etc too. Its too long ago to remember.

rodw wrote: Now you've got everything sorted in your head, I'm not going to buy in to the other stuff. I did convert mine from an XYYZ to XXYZ on someones advice and I do remember changing the Hal a far bit. It did impact on limit switches etc too. Its too long ago to remember.

Yeh mate. Super excited about this now. It's not really that hard at all. It's just hard to find all the information in one place.

Yes the HAL file would need to be changed a fair amount for XXYZ vs XYYZ but not due to references to an axis. I could not find a reference to an Axis in the HAL. The linking or pairing axis to joints is in the INI then step/direction generation and linking joints to outputs is in the HAL. This adds to confusion as it's hard to know if a "Y" in the HAL is a relevant attribute or and arbitrary name. By me changing a Axis letter to "jam" in the HAL and having it still working as it should proved it to me that it's just arbitrary name but makes it easier to understand the file to keep it a name that actually relates to what it does.

I want to get it correct as possible before I write a How To thread.

Getting pretty close now. I'll be buying some aluminium plate to mount my drivers and power supplies on and 8m of 4 core shielded cable for my motors tomorrow. The control box and wiring should be finished my Sunday arvo. There is a chance I'll be making a cut by about next Wednesday. Just depends what the kids want to get up to on the weekend. It won't be finished still. I'm ordering a vacuum cleaner for dust extraction tonight and a local quote for Cable Chain was $182 so I'll be ordering that only for about $30.

Happy Days

Todd Zuercher wrote: You can't jog a slaved axis until after it is homed. (This is because they are not really slaved together until after homing is completed.)

Posts like this are immeasurable helpful. I would have been banging around for days trying to work this out. I can't find a reference to this anywhere in the manual. Even Google doesn't turn up anything. Without Todd's post I might have eventually got it working but then I might still not have actually known how. LOL

Happy Days

I actually just posted a precis of gantry setup on another one of your threads for Jon Melson
forum.linuxcnc.org/38-general-linuxcnc-q...ivity?start=10#96532

Your Jam is called a signal and yes they can be whatever you want to call them.