Rangelus

joined 1 year ago
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NASA's solar sail successfully spreads its wings in space in c/spaceflight@sh.itjust.works
[–] Rangelus@lemmy.nz 2 points 2 months ago* (last edited 2 months ago) (3 children)

Cheers mate. Neat stuff!

I wonder how much force a sail of that size is expected to produce?

[Troubleshooting] Big stringing problem with flsun SR and Orcaslicer in c/3dprinting@lemmy.world
[–] Rangelus@lemmy.nz 2 points 6 months ago

It's all good mate! Thanks for the suggestion. When I first started printing I had that exact issue.

[Troubleshooting] Big stringing problem with flsun SR and Orcaslicer in c/3dprinting@lemmy.world
[–] Rangelus@lemmy.nz 2 points 6 months ago (2 children)

Hey mate, I keep my filament in a dry cabinet at 5ish% humidity, and I've had the same results with two different filaments in there. I even chucked my filament in a food dehydrator at 40C for 12h with no effect. I'm pretty sure the filament is dry!

Does anyone print planter heads? in c/3dprinting@lemmy.world
[–] Rangelus@lemmy.nz 2 points 6 months ago

I love these! Thanks for sharing!

[Troubleshooting] Big stringing problem with flsun SR and Orcaslicer in c/3dprinting@lemmy.world
[–] Rangelus@lemmy.nz 1 points 6 months ago

After sleeping on it, I remembered that my new heatbreak doesn't feed the bowden all the way to the end of the nozzle like the stock one does, so I'm pretty sure I have it seated correctly. I'll check it though, many thanks for the info! :)

[Troubleshooting] Big stringing problem with flsun SR and Orcaslicer in c/3dprinting@lemmy.world
[–] Rangelus@lemmy.nz 2 points 6 months ago (2 children)

I know esun is quite popular, but I never tried it.

I've generally had the best results with it. Ironically, before the upgrades I had almost no stringing.

I'm using a 0.4mm nozzle. I probably should have mentioned in the OP that I didn't have problems before, but the upgrades have happened in addition to moving to Orcaslicer.

Now I'm worried if I've got my Bowden tube seated in the hotend correctly...

[Troubleshooting] Big stringing problem with flsun SR and Orcaslicer in c/3dprinting@lemmy.world
[–] Rangelus@lemmy.nz 8 points 6 months ago

Thanks for the reply mate!

I didn't think to mess with z-hop - I'll give that a go, and I'll do some testing to make sure the Bowden is seated correctly and the wipe on retract is actually happening - thanks!

The print in the image is a 'torture test', and just something I had on hand to illustrate the issue. I'm actually not fussed if there is still some stringing at the top, but other detailed prints were getting it pretty bad, including retraction towers.

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[Troubleshooting] Big stringing problem with flsun SR and Orcaslicer (lemmy.nz)
 

Ok guys, I'm breaking down and posting here to see if anyone has any ideas. I'm greatful for any advice.

I have an upgraded flsun SR. I recently lost my computer (psu issue, waiting for replacement) and I took this opportunity to switch from Cura to Orcaslicer.

Over-all I'm very happy, and getting some good speeds, but I just cannot remove stringing no matter what I try:

  • Retraction from 0-7mm. After about 3mm, no further effect
  • Retraction speed from 30mm/s-50mm/s. No noticable effect
  • Travel speed and acceleration both high (up to 350mm/s and 6000 accel. No effect
  • Temp from 205-215 with no effect
  • Dried filament and different colours, no effect
  • Wipe on retract on and off, up to 2mm wipe distance and 100% retraction. No effect
  • Messed with scarf seams on and off, no effect
  • No effect from layer heights

My setup:

  • Printer - FLSun SR running klipper with a speede pad
  • Filament - Esun PLA+
  • Upgrades - Deported fans, OMG v2 extruder, volcano hotend and high flow cht nozzle
Help with stringing after shifting to Klipper in c/3dprinting@lemmy.world
[–] Rangelus@lemmy.nz 2 points 1 year ago (1 children)

Thanks for your reply, I will give that a go.

After posting I thought to try a different brand of filament. It's currently printing, so we'll see how it goes.

16
Help with stringing after shifting to Klipper (lemmy.nz)
submitted 1 year ago* (last edited 1 year ago) by Rangelus@lemmy.nz to c/3dprinting@lemmy.world
5 comments fedilink
 

Background:

I am running a mostly stock flsun Super Racer, which had been running pretty well on Marlin. I was having a few problems with print quality at high speed, and in an attempt to improve this I bought the flsun Speeder Pad, flashed it with stock klipper, and got it all up and running. So far so good.

I have been trying to get rid of an annoying stringing issue that I never really had on Marlin, and the more I try to remedy it, the worse it's getting.

The image is from my latest retraction tower test after re-calibrating pressure advance and rotation_distance. I'm really not sure where to go from here.

Settings from the above test:

  • Esun PLA+
  • 220C (for maximum flow)
  • 1000mm/s acceleration (low for a delta)
  • 0.1mm z-hop on retract
  • Firmware retract control running in test tower mode, 0mm start, 0.1mm factor
  • Pressure advance of 0.236

Upgrades from stock:

  • Lighter hotend housing
  • Deported fans
  • Fan ducts

Any advice is greatly appreciate!

UPDATE: It was the filament. I grabbed a spool of grey from my drying cabinet, and only later (after much hair pulling!) realized it was the budget filament I'd bought to try. Switched it out to some good quality esun PLA+ and the stringing practically vanished! See image for final stringing test.

Final retraction settings: 3.5mm at 35mm/s.

I would like to thank everyone for their help! Lemmy is always the best place to get advice!