Having fun with my new aluhotend… But it does seem to have a bad habit of while printing fine and accurately, it’s a little too accurate and it’s ‘drawing’ all the movement lines… I find this both amusing and annoying.
I’m assuming I simply am printing too hot(It’s PLA)? This didn’t seem to be a problem with my Chinese J-Head with the same settings…
Any suggestions apart from recalibrate the PID loop and lower the temperature(Printing at 210c)? And this is with retract on, it doesn’t seem to make any real difference if switched off.
Apart from that and minor finishing issues(Needed to clean swarf out of the threads) I’m pleased with how this hotend is behaving. Especially at the price!
To me, 210C sound a bit too hot for PLA. I use 185 or 190, depending on the PLA.
To find the best temperature, try to draw a box, 10x10x100 in your favourite 3D package. Slice it with temperature = 210, single shell, no infill and no top/bottom and edit the resulting G-code. What you do, is that for every 10mm height, you add code to change the temperature -5C. So after 10mm, change to 205. At 20mm, change to 200 etc. What you get is a box with 10mm “bands” that are printed with decreasing temperature.
After printing, you can look at the box and find the “band” that looks the best. The temperature that this was printed with, is your ideal temperature. Instead of editing the G-code, you can supervise the print and change temperature manually during the print for every 10 mm.
I had big trouble with some black PLA that didn’t behave. After this test, I found out that it needed 5C more that the other colours I print with.
Turning down the heat and upping retraction should help.
^ agreed drop your temp buy about 2-3C to start with, just may be a little hot for that filament.
Then look at you retraction settings if that doesn’t help.
1 step at a time.
Reclibrated PID and reprinted with first layer 210, then rest at 195c… This is the result:
https://lh6.googleusercontent.com/j1sOa_wwKByU2BNwFlrCCBBEBOI1kjh2wBdfDyhpa7U9=w1067-h801-no
Much better and the strands just brush/burn off easly. I suspect this is just very stringy filament. I’ll try printing lower temp still but it ‘dribbles’ even when it’s cooling down further. Never had anything like this problem with blue! I’ll be trying some black later today.
Not all colors print the same.
Hello mam’ can u plz tell me the software you used ? I am new to the group so will you plz help me?
Need more retraction
@Electra_Flarefire
looking much better I’d drop to 208C and try again.