• 2 Posts
  • 19 Comments
Joined 1 year ago
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Cake day: June 26th, 2023

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  • PEI is one of the best surfaces you will ever find to print on, although I believe one type of filament (I think a variation of PLA?) sticks too well and can damage the PEI trying to take prints off…

    That’s PETG. I avoid using smooth PEI plates like fire when PETG is loaded. Even after swapping the filament to PLA, little bits of residual PETG can still stick leaving a shadow on the plate. Textured PEI is mostly fine, but single layer stuff like brims are a pain to get off.


  • Roman0@lemmy.shtuf.euto3DPrinting@lemmy.worldRetraction Test
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    5 months ago

    From what I understand it tests the minimum retraction distance you need to avoid stringing. The lower you get the less retraction you need. For example, for me usually it stops stringing around 0.4mm retraction (that’s 4mm measured from the hot plate), but found that in real conditions the default 0.6mm works better. I don’t find this test too useful, for me it fails to demonstrate the spectrum between too little and too much retraction, a feature I appreciate in the pressure advance tower. Apparently the moment it stops stringing, anything after that won’t show you anything new and it’s best to stop the print. Either that or I fail to notice any defects when the retraction is relatively high.





  • Dry and then store in a controlled environment. I’m using those bog standard cereal containers from Amazon (3,7-4l container should do for 1kg spools). Add some desiccant, spool rollers and a hygrometer and you have yourself a semi-permanent home for your spools. Mine show somewhere between 10% and 15% humidity, so that’s pretty good considering that previously just leaving a spool in open air for a single longer print caused it to soak enough moisture to ooze and string by the end of the print, and that’s in “only” over 40% humidity. So yeah, highly recommended.



  • Not the person you’ve replied to, but I’ve got a Roborock Q7 Max. It’s cheap and relatively simple. It’s got a LIDAR and proximity sensors, but no obstacle avoidance or stair/cliff detection and no camera. From what I can see it’s also silent (no network activity) even though it’s bound to my WiFi. After months of using it I’d say its been a great choice to splurge on. Never had one, never thought I’d need one, but after seeing dust settling on every bit of the floor every day… I got tired of sweeping.









  • Since I’ve started automating stuff I’ve got myself an Acurite wireless fridge and freezer thermometer (initially found out about it on Reddit, before it all went to shit and all). It both has a nice magnetic display and it transmits in 433MHz band, so a SDR dongle plugged into my Home Assistant machine can receive the temp readouts. So far it didn’t prevent any disasters, but at least I know how hot it needs to get for the fridge to start having trouble keeping cool.



  • I’ve never self hosted, started maybe two years ago. First I’ve started with a Raspberry Pi 3, but quickly decided that 1GB of ram, and limited power was not enough for my needs. I’ve got myself a Dell OptiPlex SFF (used), it came with 16GBs of ram, then I’ve added a 4TB HDD. I’d say, this is an “entry” piece of hardware, as it’s cheap and sips power (around 15-20W at idle). If you don’t need the disk space or much power, go with a micro (whichever manufacturer you chose, HP, Dell, IBM), they’re cute little boxes that make a RasPi seem both underpowered and overpriced (for a used one anyway).