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weatherman
MemberI went through and rechecked all motor connections. They’re good. The problem is the direction isn’t random. I can repeat the behavior with the same parameters.
MemberWell son of a b. I just tried changing my 1tr/2tr/3tr values via the console, same way I’ve been changing everything today. Wouldn’t you know, I jogged the machine right before changing the tr values. I changed the tr, then went back to the jog and it inverted the polarity on one of my y motors, racking the machine yet again. I’ve tried in in both the X & Y. Same as before, I can clear it by jogging in the opposite direction. This last time, I sent the tr commands again, but didn’t change anything. Here are the lines:
[1tr] m1 travel per revolution 40.0000 mm
tinyg [mm] ok>
$2tr=40
{“ej”:””}
[2tr] m2 travel per revolution 40.0000 mm
tinyg [mm] ok>
$3tr=40
{“ej”:””}
[3tr] m3 travel per revolution 40.0000 mm
tinyg [mm] ok>
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{“qr”:””}The commands show the correct orientation. First was a +X move, then -X, then +X again. The problem is the machine moved – the first and second time, and finally + again the third time.
This is driving me crazy. It worked fine all day, I take a break to grab a drink and it goes crazy.
MemberA little update from me. I flashed to 440.19 and updated the parameters via the console instead of the widget and the jogs are correct. I tried via the widget and half the time the setting wouldn’t even save at all. It was very hit and miss, and when it did, the jogs were backwards.
I did some playing with my velocities and jogs and stumbled across something interesting. I’ve been working in mm since everything I’ve read says TinyG works better that way. Any xvm/yvm value greater than 1200 mm/min and jogs on the machine jump and stumble…until you put Chilipeppr in Inch mode. I’ve ran the velocities to 5000 mm/min, changed over to Inch mode and it jogs smooth as glass. I’m using the jog widget at 1.
I got to thinking, maybe there was a change in the way Chilipeppr buffers the jog commands? I changed back to MM and changed to the Custom jog to 10 and it works smooth on MM mode now. It’s weird, prior to the update to 440.16 I didn’t have to put it on custom 10 to get smooth jogs.
I still need to adjust my travel values as they’re a bit off. I tried to cut a 1″ circle and it came out to .97″. Similar values with a .25″ pocket cut. They came out about .22″. Should I drop my 1tr/2tr/3tr values down a hair? They’re at 40 right now.
The only other thing I’ve noticed is it is still having problems with some curves. Some jump and stall while others are smooth.
MemberSorry it’s been a while. I had to go out of town for a while and I’m just not getting back around to working on the machine.
I have upgraded the firmware to 440.18 and SPJS to 1.80. I also rewired the machine so that each Y axis stepper is on it’s own driver. I used many of the settings you mentioned above and have been trying to tweak them to work better. I have run into an interesting, and frustrating problem.
I can test the jogs via the cp widget and the machine will move fine. I’ll go into the settings and make adjustments, save them, and then the fun begins. I’ll go back to the jog setting, and lets say I press the left arrow to move -x. The machine will move in the +x. If I hit it again, it does the same thing. I can then press the right arrow for the +x and it’ll move +. Now I can press the -x and it’ll move correctly.
If I try it with the Y, it’s worse. After changing and saving a setting, I can press the down button for -y. The right motor will move + and the left motor will move -, which racks the machine into a bind. The only way to correct it is the same as before. Jog in the opposite direction once, then both directional keys will then work.
As you can imagine, this is quite frustrating. Once I get the settings correct I shouldn’t have to adjust them again and all will be fine. Until the next firmware update and I have to do this all over again.
Here is a video of it in action. Ignore the garage, it’s a mess right now.
https://www.youtube.com/watch?v=tqUADy0ijbU&feature=youtu.be
MemberThanks for your help. I had to walk away from this for a couple of days as I was getting quite frustrated. When I came back to it a couple days ago, having changed nothing at all, miraculously it started working! I guess whatever gremlin was in the z axis left when he wasn’t getting attention.
The problem I’m having now is getting files to actually run. I made a post on the google plus forum about it.
MemberI’m using the jog precision set at 1.
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