I don't have a picture yet, but I think I've solved it. I put a washer on the screw so that hit basically covers the whole thing. There's no way that it's going to wiggle around now. Got one test print off at 210/60. I'll do some more and then I might get crazy and try some PETG.
Well... I think my power supplies are starting to fail. I thought it was the thermistor. After tests it seems as if the printer will run just a little under 2 hours before going into thermal runaway protection. I've done a few over night prints and have completed a few 3-4 hour prints. Now I can't get past 1:45. This time I was lucky and was sitting watching the print (gyroid is mesmorizing). The temps were steady at 200/50. In earlier testing when I had it set at 210/60 and did rapid movements with the printer through pronterface I'd notice the temps drop during the moves. I thought this was just bad PID for the hotend. Now I'm thinking that the main power supply just can't keep up with the demands from the printer, fans, and hotend. Once large rapid movements start occurring it can't deliver the current to keep the temperature stabilized.
Man I don't want to sink more money into this thing to find out... :(
We're going to be looking into this in more detail over the coming week however at the moment we are suggesting limiting to 55 degrees but this might not end up being the final verdict - you may be OK up to 70/75.
It might be that Kevin has gotten a heated bed that's shorting out or a faulty MOSFET/wiring (which we can replace).
So a larger washer and the cooling print? Im kinda confused as this is my first printer.
Here's how I solved my thermal runaway issue (aside from the custom built power supply and a new thermistor)
well shoot, there goes that solution. Maybe its time to throw the baby out with the bath water?
So... I finished my Mean Well upgrade https://www.forum.makertech3d.com/forum/general-discussion-1/mean-well-lrs-350-upgrade . It hasn't solved the problem. I even swapped out the thermistor. I'm now wondering if there is an issue with the thermistor seating in the heatblock
Yeah, I was running at 60°C, so I worry about the replacement parts also. I also have noticed that 2-3 hours seems to be its limit.
Well... I think my power supplies are starting to fail. I thought it was the thermistor. After tests it seems as if the printer will run just a little under 2 hours before going into thermal runaway protection. I've done a few over night prints and have completed a few 3-4 hour prints. Now I can't get past 1:45. This time I was lucky and was sitting watching the print (gyroid is mesmorizing). The temps were steady at 200/50. In earlier testing when I had it set at 210/60 and did rapid movements with the printer through pronterface I'd notice the temps drop during the moves. I thought this was just bad PID for the hotend. Now I'm thinking that the main power supply just can't keep up with the demands from the printer, fans, and hotend. Once large rapid movements start occurring it can't deliver the current to keep the temperature stabilized.
Man I don't want to sink more money into this thing to find out... :(
I've been printing at 65/60 (initial and subsequent layers) on my tests.
We're going to be looking into this in more detail over the coming week however at the moment we are suggesting limiting to 55 degrees but this might not end up being the final verdict - you may be OK up to 70/75.
It might be that Kevin has gotten a heated bed that's shorting out or a faulty MOSFET/wiring (which we can replace).