jeffreymcgrew
06-15-2010, 10:30 PM
Hey everyone. Been having a strange issue with our Jog Speed.
After we upgraded to a 4G controller, we were running our PRT at about 8 Inches per second on the jog, and having a grand time doing it.
Then we started getting the occasional stall, so we went down to 6 IPS and no problems for over two years.
Now, we just moved to a new shop, and we're getting occasional stalling at 6 IPS, and have gone down to 4.
I just redid the USB connection, and we're getting a nice, happy 87% now.
I've got a new, better power supply on it's way to me now. Ours is the old style PRT one, we'll soon have the newer PRS style one that can supply a lot more voltages to the steppers.
We've got everything grounded, with a nice ground to the steel frame of our building (but not to the common ground that the shopbot is wired to... is that important?).
The computer it's hooked up to is old. Not OLD old, but not that new either. P4 1Ghz Shuttle with 512 megs ram and a dedicated USB 2.0 card running through a hub for the enhanced port.
The increased stalling happened when we moved. Shortly after we moved, I think we updated the Controller software as well.
The new power supply shows up tomorrow, and I'll report back if it makes a change, but I would love love love to hear what else I should look at!
After we upgraded to a 4G controller, we were running our PRT at about 8 Inches per second on the jog, and having a grand time doing it.
Then we started getting the occasional stall, so we went down to 6 IPS and no problems for over two years.
Now, we just moved to a new shop, and we're getting occasional stalling at 6 IPS, and have gone down to 4.
I just redid the USB connection, and we're getting a nice, happy 87% now.
I've got a new, better power supply on it's way to me now. Ours is the old style PRT one, we'll soon have the newer PRS style one that can supply a lot more voltages to the steppers.
We've got everything grounded, with a nice ground to the steel frame of our building (but not to the common ground that the shopbot is wired to... is that important?).
The computer it's hooked up to is old. Not OLD old, but not that new either. P4 1Ghz Shuttle with 512 megs ram and a dedicated USB 2.0 card running through a hub for the enhanced port.
The increased stalling happened when we moved. Shortly after we moved, I think we updated the Controller software as well.
The new power supply shows up tomorrow, and I'll report back if it makes a change, but I would love love love to hear what else I should look at!