Hadron Ord Calibration Help
Posted: Sat Nov 30, 2013 12:03 am
I'm building my Hadron after a long wait. I bought one of the first ATI kits about two years ago (before they bumped the price a little bit). Here's my setup:
ATI Hadron Ord Kit (original one, from before the price bump... two years ago)
Z-axis flex couplers
bart's z-axis wobble fix
rambo 1.2 electronics
ez-struder
J-head
Mk2a heated bed
HomeDepot glass build surface.
RepRap discount LCD
I'm running the latest repetier firmware with repetier-host and slicr.
I've made my first few prints today, just calibration cubes. I'm please to admit that they do look (mostly) like what they are supposed to. However, I have a few issues that need to be resolved and I'm not really sure where to start.
My first print was of this: http://www.thingiverse.com/thing:5011
The print came out "ok", but has a number of problems. There is a lot of wobble in the layers. My bridging settings are clearly not ideal. Also, the first few layers seem to be wider than they ought to be.
I tried printing a simple open top cube, but much smaller. The same layer wobble showed up as well as the wider first few layers.
Im not really sure where to start. However, here is what I have tried so far. I tensioned the belts to a lot. My motor mounts are a bit flimsy (the first ATI kits were made of thin aluminum, but I think they've fixed this), and there is enough tension that they flex a little bit. I've made the necessary mods to the z-axis to mediate the z-axis wobble issues. However, the layering issue I'm seeing looks like this problem anyway. I played around a bit with extrusion temperatures, but that did not seem to help.
I am currently planning to try and figure out the uneven layering issue first. As that one seems the most serious. I suspect some kind of mechanical issue here, though I don't know what it would be... Then I want to try and dial in my slicr settings. Can anyone share the slicr settings that have worked well form them with the j-head on the ord bot?
Thanks in advance for the help.
ATI Hadron Ord Kit (original one, from before the price bump... two years ago)
Z-axis flex couplers
bart's z-axis wobble fix
rambo 1.2 electronics
ez-struder
J-head
Mk2a heated bed
HomeDepot glass build surface.
RepRap discount LCD
I'm running the latest repetier firmware with repetier-host and slicr.
I've made my first few prints today, just calibration cubes. I'm please to admit that they do look (mostly) like what they are supposed to. However, I have a few issues that need to be resolved and I'm not really sure where to start.
My first print was of this: http://www.thingiverse.com/thing:5011
The print came out "ok", but has a number of problems. There is a lot of wobble in the layers. My bridging settings are clearly not ideal. Also, the first few layers seem to be wider than they ought to be.
I tried printing a simple open top cube, but much smaller. The same layer wobble showed up as well as the wider first few layers.
Im not really sure where to start. However, here is what I have tried so far. I tensioned the belts to a lot. My motor mounts are a bit flimsy (the first ATI kits were made of thin aluminum, but I think they've fixed this), and there is enough tension that they flex a little bit. I've made the necessary mods to the z-axis to mediate the z-axis wobble issues. However, the layering issue I'm seeing looks like this problem anyway. I played around a bit with extrusion temperatures, but that did not seem to help.
I am currently planning to try and figure out the uneven layering issue first. As that one seems the most serious. I suspect some kind of mechanical issue here, though I don't know what it would be... Then I want to try and dial in my slicr settings. Can anyone share the slicr settings that have worked well form them with the j-head on the ord bot?
Thanks in advance for the help.