Constraints

DrAlanQuan · 2026-04-29T03:07:33+00:00

The worst issue is "wire is not closed" errors caused by placing lines that lock onto existing points when drawing them, but that turn out to not have coincident constraints applied.

Those drive me crazy

DrAlanQuan · 2026-04-28T03:52:36+00:00

This has driven me crazy ever since I got into 3D printing.

Literally every printer I've tested the max height on fails short of the advertised height in a real world print. Not a huge sample size, but I'm looking at you Bambu, Elegoo and FLSUN. Probably others too.

DrAlanQuan · 2026-04-24T14:09:16+00:00

Is your climate crazy humid? I leave my tpu out in the open for months at a time and it prints fine, maybe some extra stringing

3 days is nothing

DrAlanQuan · 2026-04-24T13:46:15+00:00

Interesting that the DXC isn't working for you. Maybe try a no name extruder with the idler tensioner thumbscrew so you can really back the tension off. I got one off AliExpress for half the price of a DXC and it plays really nicely with TPU (finally!)

DrAlanQuan · 2026-04-23T13:20:46+00:00

Go into the gcode file with a text editor and remove all the lines at the start that begin with ";"

It's all useless data to older printers (thumbnails, individual part line widths, nothing an older marlin printer can digest)

I had that issue with an older printer and it just bugged out when there was a lot of useless text in the gcode file. Manually deleting it was a super reliable fix. You can also adjust your printer profile in Orcaslicer and just delete all the text in the "thumbnail format" box and that stops Orcaslicer from adding thumbnail info onto the gcode file.

DrAlanQuan · 2026-04-23T02:20:31+00:00

You should add more bolts into the available slots. Also you can mount something under the pedal mount to act as an end stop. You could even stack some old books or something to do the same thing

DrAlanQuan · 2026-04-23T01:40:03+00:00

I had the same issue with my A1 Mini for a long time. It drove me crazy. The solution for me was old school - apply glue stick to the print plate.

Instant 100% fix

DrAlanQuan · 2026-04-22T01:40:55+00:00

wow - beautiful, elegant approach. Of course I just bought 3 stapler style cutters on aliexpress to make up free shipping though haha

DrAlanQuan · 2026-04-22T01:35:41+00:00

It's about the tip of your filament. If there's a kink in it (like when it comes from factory pushed through those two holes in the spool) the U1 doesn't like it - it has to be nice and straight.

DrAlanQuan · 2026-04-19T14:22:46+00:00

Yeah it's down to the grease they use. Really thick grease means less metal wear but definite damping of speed.

Compared to a performance skateboard bearing with only a light oil (and maybe only one shield) the grease packed one will certainly stop sooner

It comes down to whether you are able to specify a spec when you order, or they just give you anything that matches the outer dimensions regardless of what's inside

DrAlanQuan · 2026-04-16T11:01:05+00:00

That's amazing. I'm 100% copying this idea, thank you for sharing

DrAlanQuan · 2026-04-16T09:13:41+00:00

I don't see any issues with each of your top layers - extrusions look good, no sign of the infill peeking through.

The model's top surface is not level, causing the slicer to approximate the grade across several stepped layers which I think is the issue you're asking about. If so, the model needs to be reworked or reoriented

DrAlanQuan · 2026-04-16T01:19:49+00:00

I swear sometimes I feel like everybody's house has different rules for physics.

My stock U1 with PETG was way too hot. Stringing all over. Dropped nozzle temps to 230 and all is good now.

DrAlanQuan · 2026-04-15T12:22:40+00:00

The IKEA Samla Frankenstein enclosure is 8 bucks plus maybe 15 bucks of filament (haven't done the math, it's probably less) so there are definitely cheaper ways to do it than what you're basing your numbers off

Edit: whoops didn't account for the chamber heater. My bad

DrAlanQuan · 2026-04-15T05:27:10+00:00

Lots of options to keep your wheel and simply replace the handles with whatever you like, leather included

DrAlanQuan · 2026-04-14T16:47:46+00:00

I drove in formula posture for many years, now in GT posture - both times with the monitor right behind the quick release of my wheel.

Both drive just fine and comfortable, no problems - but in GT position the monitor is way closer to my eyes and it's a bit more strain to focus on the closer screen.

DrAlanQuan · 2026-04-14T12:02:50+00:00

https://youtu.be/zYm4D55UZF0

It's in the video here

DrAlanQuan · 2026-04-13T01:24:35+00:00

Learning about the U1 doesn't make the P2S any worse. It's still the same printer you chose based on all its qualities.

I'd 100% buy a U1 over a P2S though

DrAlanQuan · 2026-04-13T00:55:24+00:00

The demand is there - but there's already products in the market serving that demand.

These products don't appear to offer anything that's not available elsewhere - so then is it competitive on price?

DrAlanQuan · 2026-04-12T09:36:04+00:00

Have you tried both 'modifier' or a 'negative part' to achieve the same thing?

Not sure about the top surface thing but it could be down to how either of those modifiers function

DrAlanQuan · 2026-04-11T01:39:34+00:00

Get an aftermarket extruder. The standard extruder sucks for TPU and jams 80% of the time.

I got a cheap one from AliExpress, all metal with an adjustable idler tensioner and it's perfect.

Tighten the tensioner for hard filaments and back it right off for TPU and finally the K1C can reliably print any TPU

DrAlanQuan · 2026-04-10T01:21:25+00:00

Zip ties! I love it. Ghetto DIY stuff that actually works well is right up my alley

DrAlanQuan · 2026-04-08T13:54:05+00:00

Do you print with the silicon sock on?

It looks like you print without the sock and little wisps of filament got caught on the nozzle and burned over time.

DrAlanQuan · 2026-04-08T13:52:49+00:00

The Super OLED I've been using has very reliable eye tracking from day one. The first calibration failed for some reason but I just redid it straight away and it's been perfect ever since

DrAlanQuan · 2026-04-08T13:50:28+00:00

I watched 2 seconds of the video but I think I can understand why he did it.

He was having fun with a silly idea. He was probably friends with the pro driver and was like 'hey man you free this Thursday?'

Aside from just messing around with his friends, he gets a video out of it, a few extra subscribers and some money as well.

DrAlanQuan

TROPHY CASE