I was trying to use up the last coils of P400 on a spool running some small parts. The filament ran out before the job finished, and I ended up dashing in early in the morning to try and get the FDM running again. I mounted another partial spool of P400 I want to use up, and I figured I would just try to push it forcing the last end thru. That didn’t work and I just ended getting ‘Out of Filament’ errors, even though there was material in the sensor in the rear.
I decided to ‘Unload’ the small filament, but got a ‘Torque Limit’ error. So much for finishing the small parts. I pulled the head, and found a large bulb of material on the filament was preventing the filament from unloading.
bulb in filament
Being half asleep and in a hurry, I put the head back in the machine and tried to get the next partial spool loaded. It just wouldn’t catch and start feeding, and I wondered if I had created another rat’s nest in the head. Pulling the head again showed it wsn’t feeding correctly at all:
Not feeding correctly
Side view of misfeed
So I pulled the model material motor
Blob of material on Inlet Buffer
Side view of material blocking Inlet Buffer
Clearing that away, re-assembling the head, and reloading the machine got the FDM going again. As I still haven’t figure out how to re-start an interruptted run, I started up a different job.
Again, I ran another platter of clamps without any problems.
I won’t be posting anymore of the clamp runs, as I’m trying to use up some partial spools of P400 material, and I want to try postprocessing some parts with Epoxy Resin. More clamps will be the test pieces. I’m sure this will take many days…..
Finally on the third try I got a finished platter of Wade’s extruder parts:
There’s some creative support structures on the one part put in by Insight. I’m hoping the gears will work given my Y Axis backlash.
I forgot to enable the ‘Auto Shutdown’, so the machine cooked for several hours before I retrieved the parts. Just to flush everything out, I started another run of the clamps I did before.
Well, the second run of the Wade’s Extruder parts came to abrupt end after 5AM on Friday the 13th:
Last Desktop Image
My sending computer had the ‘Blue Screen of Death’ when I came in to retrieve the parts, but found them only 1/3 done.
Darn, they were looking pretty nice too.
I’m going to start a new build of the same parts that will get done tomorrow.
After almost a month of not running anything, I fired up the FDM1650 Tuesday and started a run of clamps. They were finished on Wednesday and looked pretty good:
The last time I had tried to run these, the run ended in FDM BARF, so this was a vast improvement. While I had the Insight up & the job laid out, I started a second run. This got done today and was as good as the first:
Seems like now is the time to get good runs of previous runs that did finish right, so I dug out the Wade’s Extruder models that ran out of filament about a month ago. They are running now, and ready tomorrow (I hope!).