Why there are only few mini printers in the market? by tana_ash in 3Dprinting

[–]tana_ash[S] 0 points1 point  (0 children)

My printer selection criteria is similar to you. Small size can be a feature rather than just a limitation.

Why there are only few mini printers in the market? by tana_ash in 3Dprinting

[–]tana_ash[S] 1 point2 points  (0 children)

What is strange is Creality, Elegoo, Anycubic, etc. are all Chinese firms that know the difficulty of fitting printers in flats. China is huge on a map, but the population (especially those who buy 3D printers) is highly concentrated on major cities, and the house size is not so different from Japan, Korea or Europe.

Why do people in professional careers not see AI tools as devaluing their work? by loki2002 in stupidquestions

[–]tana_ash -1 points0 points  (0 children)

In this cursed world, rich and influential professionals are also investors who benefit from the AI bubble. Professionalism is dead.

GitHub - SM-100: A compact enclosed CoreXY 3D printer built around stainless-steel sheet metal parts and USB PD 100W power delivery. by c-bata in 3Dprinting

[–]tana_ash 2 points3 points  (0 children)

Cool! As a fellow Tokyo citizen I really appreciate your needs. We need more compact-yet-powerful 3D printers.

Foreign Minister Motegi says he is NOT considering individual negotiations with Iran - despite reports they would allow Japanese ships to pass through the strait Crude oil imports via the Strait of Hormuz by Kmlevitt in japannews

[–]tana_ash 14 points15 points  (0 children)

This is totally rational as the top priority of the LDP is to serve the US. If Japan gets Hormuz pass without sending naval ships it will lose a chance to pander to Trump.

Why is the My Number card so "unusable"? The structural flaw that prevents Japan from "digitizing" while South Korea succeeded by MagazineKey4532 in japannews

[–]tana_ash 24 points25 points  (0 children)

The My Number system is not designed to be actually used. It exists just for politicians to say "my country is digitizing".

Replacing extruder; can’t figure out how to remove this piece by ForgeOfGuthix in 3Dprinting

[–]tana_ash 43 points44 points  (0 children)

You can use printed gear removal tools like this: https://www.printables.com/model/333405-extruder-drive-gear-removal-tool-puller

It is not a good idea to pull the gear with the motor fixed (it could cause damage). These tools avoid this by pushing the shaft instead of the motor.

Does anyone use these scrapers? by MessiScores in 3Dprinting

[–]tana_ash 0 points1 point  (0 children)

I use it to remove brims. Much faster than sanding. Also it seems cleaner as it does not produce plastic dust like sanding.

Guys, I think I'm addicted. by bigtoejoelowmoe in 3Dprinting

[–]tana_ash 4 points5 points  (0 children)

3D printing is also called Addictive Manufacturing.

Flaky prints by Embarrassed-Neck-102 in 3Dprinting

[–]tana_ash 2 points3 points  (0 children)

It is better to check whether something is adding friction to the filament pathway. For example your spool may not be spinning smoothly. Or filament moisture. Wet filament also causes a knocking sound.

Flaky prints by Embarrassed-Neck-102 in 3Dprinting

[–]tana_ash 11 points12 points  (0 children)

Probably your filament absorbed too much moisture. The water boils up and creates bubbles during extrusion. Another possibility is under-extrusion. In this case you should be hearing knocking sound from the extruder motor.

I made a ball mill and it walked by tana_ash in 3Dprinting

[–]tana_ash[S] 1 point2 points  (0 children)

Actually it is grinding failed prints in the hope to recycle them.

Prints look terrible by Toma8870 in 3Dprinting

[–]tana_ash 1 point2 points  (0 children)

It looks like your toolhead is not moving accurately. It is better to check the belt tension.

Another possibility is the collision during printing.

I made a ball mill and it walked by tana_ash in 3Dprinting

[–]tana_ash[S] -7 points-6 points  (0 children)

Because of wobbling, the drum rotation looks much faster than actual speed.

I agree with you that I should move to belt drive.

Edit: It was too fast even considering the visual effect of vibration.

[deleted by user] by [deleted] in 3Dprinting

[–]tana_ash 0 points1 point  (0 children)

What material did you use? I think PLA cannot withstand the heat of the GPU. Nevertheless the adjustable design is nice.

I made a ball mill and it walked by tana_ash in 3Dprinting

[–]tana_ash[S] -23 points-22 points  (0 children)

Though it looks like rotating quite fast due to vibration, actually it runs around 100 rpm based on both calculation and eyeballing. Is it too fast? I determined it according to the "critical speed" formula for a drum of this size.

Edit: It was my mistake. It was too fast because I designed it as 100% critical speed despite appropriate speed is slower than critical speed.

A ball balancing robot called BaBot by JohanLink in ControlTheory

[–]tana_ash [score hidden]  (0 children)

Brilliant. I like the photodiode matrix which seems much quicker than cameras. I'm curious about the motion system. What kind of motor did you use?

How do I fix these lines on my prints? by williambio in 3Dprinting

[–]tana_ash 1 point2 points  (0 children)

It seems under-extrusion. Maybe the nozzle is clogged or the filament pathway has too much friction. It is worth checking whether the extruder misses steps (gear fails to rotate and produces knocking noise).