krissmithrocks
Plastic
- Joined
- Apr 29, 2018
Long time lurker here, hopefully someone with a little bit of Dynapath knowledge is in attendance. Sorry if I ramble a bit or type like I talk...
Backstory: Jump down to current problem if you aren't in for a read, as little of it has to do with the current problem.
I bought a Tree Journeyman 310 about a year and a half ago because the previous owner couldn't get it working, it was having servo ground fault errors on all of the drives and they got tired of throwing parts at it. I got it for a pretty good deal and it looked to have very little wear (no gouge marks on the table, the finish on the little dust covers looked basically pristine) looked kinda like it spent most of it's life in some engineers basement. They told be that they got it at an estate sale when someone died and could never make it run. So, after pouring over the prints and looking on forums for about 2 weeks in my free time at work I found that little inline fuse in the wiring bundle behind the power supply blown and for $1 fuse, yatzee! it worked, drives worked and I could move everything around in jog mode. Sweet! Now to fix the encoder on the X-axis that they broke when they were trying to troubleshoot it. Ordered one, also ordered a VFD that would convert my single phase to run the spindle motor, and went back to work. I work at an oil refinery and we were going into a turn around, so I wasn't likely to have free time to mess with it for about 2 months so I settled in. Fast forward 2 weeks (not kidding 1 week after I get it running) a light got left on in my shop and started an electrical fire (I'd only lived in the new place for about 4 months at this point and would soon find lots of electrical decencies). Shop was trashed, everything was smoke damaged, it burned out the office that I had all of my tools etc, just terrible. So, after dealing with insurance and the cleaning company and my contractor (went out of business) and everything for over a year, I'm finally back to working on it. I stripped off all of the electronics, lube oil pump, anything hanging off of it, I greased and washed all of the soot off of it and repainted the iron, cleaned up the table etc. I was contemplating going to a Centroid all-in-one DC and just starting from scratch, but I happened across a craigslist ad from the Seattle area of a machine shop that had a Dynapath Delta 20, off of a Tree 310 and it was turn-key. They upgraded everything on their machine to speed it up, the went with new servos and the whole kit, so they let everything go for a really good deal. I got new servos and everything.
Fast forward to today:
Everything is installed, powered up no problem, faults cleared immediately. Axis all jog, every direction, the only odd thing is that when changing direction, it will jump about 0.020, enough to make a "thunk" and startle you... it does it on every axis... i'd be looking for something mechanical, but the fact that it does it on all 3 axis makes me suspicious. I'm thinking that I need to tune the servo controllers, but i'm hesitant to make any changes (I don't want to start tweaking one card and get it way out when they are all doing the same thing). When you travel in one direction and stop and then start again in the same direction, it doesn't do it. It's only when switching from one direction to the other.
Either way, that's another problem and not really the reason for my post, i'm sure I can do some more digging on that front...
My current problem:
Machine boots up, errors clear. I can jog everything. Found some examples of programs to input (small ones that only have a few lines, eg. move here) and tried to run it. First error: Axis not referenced... ok back to the jog screen, no problem. Align all of the marks, then "R" then X+, it indexes a little ok cool, move it negative a bit, rinse repeat with Y and Z... Then I try to jog it and it will go negative on any axis but not positive. I'm thinking I'm near where the machine thinks the limit is, so I jog negative for a bit and try to go back the other way, nada. Cycle the control power off and back on and I can jog positive again, ok weird... So, basically if I go in and reference one axis it will stop moving positive, if I switch back to jog after I do one of them, the other 2 will still move both directions and the one that's referenced will only move negative. I'm sure I'm doing something stupid or wrong, but after I'm done screwing around each night I cycle the controller so that I can jog it and move it back to line up all of the little home indexes before I shut it down, I've screwed with it for a couple of evenings of free time and I figure that I've been lurking here for long enough that I was time to post and maybe someone could tell me what i'm doing wrong, or give me an idea, or point me to a reference. I don't have the manual that came with it, that's on my list of things to try to acquire, maybe it'll shed some light.
Any help would be greatly appreciated. You guys have already helped me so much without even knowing it lol
Backstory: Jump down to current problem if you aren't in for a read, as little of it has to do with the current problem.
I bought a Tree Journeyman 310 about a year and a half ago because the previous owner couldn't get it working, it was having servo ground fault errors on all of the drives and they got tired of throwing parts at it. I got it for a pretty good deal and it looked to have very little wear (no gouge marks on the table, the finish on the little dust covers looked basically pristine) looked kinda like it spent most of it's life in some engineers basement. They told be that they got it at an estate sale when someone died and could never make it run. So, after pouring over the prints and looking on forums for about 2 weeks in my free time at work I found that little inline fuse in the wiring bundle behind the power supply blown and for $1 fuse, yatzee! it worked, drives worked and I could move everything around in jog mode. Sweet! Now to fix the encoder on the X-axis that they broke when they were trying to troubleshoot it. Ordered one, also ordered a VFD that would convert my single phase to run the spindle motor, and went back to work. I work at an oil refinery and we were going into a turn around, so I wasn't likely to have free time to mess with it for about 2 months so I settled in. Fast forward 2 weeks (not kidding 1 week after I get it running) a light got left on in my shop and started an electrical fire (I'd only lived in the new place for about 4 months at this point and would soon find lots of electrical decencies). Shop was trashed, everything was smoke damaged, it burned out the office that I had all of my tools etc, just terrible. So, after dealing with insurance and the cleaning company and my contractor (went out of business) and everything for over a year, I'm finally back to working on it. I stripped off all of the electronics, lube oil pump, anything hanging off of it, I greased and washed all of the soot off of it and repainted the iron, cleaned up the table etc. I was contemplating going to a Centroid all-in-one DC and just starting from scratch, but I happened across a craigslist ad from the Seattle area of a machine shop that had a Dynapath Delta 20, off of a Tree 310 and it was turn-key. They upgraded everything on their machine to speed it up, the went with new servos and the whole kit, so they let everything go for a really good deal. I got new servos and everything.
Fast forward to today:
Everything is installed, powered up no problem, faults cleared immediately. Axis all jog, every direction, the only odd thing is that when changing direction, it will jump about 0.020, enough to make a "thunk" and startle you... it does it on every axis... i'd be looking for something mechanical, but the fact that it does it on all 3 axis makes me suspicious. I'm thinking that I need to tune the servo controllers, but i'm hesitant to make any changes (I don't want to start tweaking one card and get it way out when they are all doing the same thing). When you travel in one direction and stop and then start again in the same direction, it doesn't do it. It's only when switching from one direction to the other.
Either way, that's another problem and not really the reason for my post, i'm sure I can do some more digging on that front...
My current problem:
Machine boots up, errors clear. I can jog everything. Found some examples of programs to input (small ones that only have a few lines, eg. move here) and tried to run it. First error: Axis not referenced... ok back to the jog screen, no problem. Align all of the marks, then "R" then X+, it indexes a little ok cool, move it negative a bit, rinse repeat with Y and Z... Then I try to jog it and it will go negative on any axis but not positive. I'm thinking I'm near where the machine thinks the limit is, so I jog negative for a bit and try to go back the other way, nada. Cycle the control power off and back on and I can jog positive again, ok weird... So, basically if I go in and reference one axis it will stop moving positive, if I switch back to jog after I do one of them, the other 2 will still move both directions and the one that's referenced will only move negative. I'm sure I'm doing something stupid or wrong, but after I'm done screwing around each night I cycle the controller so that I can jog it and move it back to line up all of the little home indexes before I shut it down, I've screwed with it for a couple of evenings of free time and I figure that I've been lurking here for long enough that I was time to post and maybe someone could tell me what i'm doing wrong, or give me an idea, or point me to a reference. I don't have the manual that came with it, that's on my list of things to try to acquire, maybe it'll shed some light.
Any help would be greatly appreciated. You guys have already helped me so much without even knowing it lol