this post was submitted on 10 Jan 2024
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3DPrinting

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Why do we still use stepper motors? (sopuli.xyz)
submitted 10 months ago* (last edited 10 months ago) by DreadPotato@sopuli.xyz to c/3dprinting@lemmy.world
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Why are 3D printers still stuck on stepper motors? Why haven't we transitioned to servo motors with encoder feedback for positioning?

Is it just too cost prohibitive for the consumer-level? We would be able to print a lot faster and more accurately if we had position feedback on the axes. Instead we just rely blindly on the stepper not skipping any steps when we tell it to move, hoping for the best.

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[–] brightandshinyobject@lemmy.world 13 points 10 months ago (4 children)

Not disputing, I want that 3 minute benchy. Where does one find this magic?

[–] towerful@programming.dev 14 points 10 months ago (2 children)
[–] Cornpop@lemmy.world 7 points 10 months ago (4 children)

The print as absolute shit though. Literal garbage.

[–] DistractedDev@lemmy.world 7 points 10 months ago

Looks pretty good for the speed to me! This is an experiment. Someone will be able to build on that and make it better.

[–] TwanHE@lemmy.world 3 points 10 months ago (3 children)

https://youtu.be/f5OHYZbrHjs?si=LruE_T63UnlSRWa0

This is as fast as I've seen for PLA while still retaining good quality. And he probably could go faster with more powerful motors or more of them.

[–] DoomsdaySprocket@lemmy.ca 5 points 10 months ago (1 children)

Honestly, there’s going to be a hard peak to how fast a 3D printer can go, because physics. Unless we start running prints in a vacuum and start tuning local gravity….

[–] TwanHE@lemmy.world 2 points 10 months ago

There will always be limits to how fast you can go. But as long as the average printer is not even close to whats doable there is room for improvement.

[–] Cornpop@lemmy.world 2 points 10 months ago

That’s much much nicer. I’ve been looking at the bamboo x1c, its speed and quality is pretty amazing right out the box.

[–] PipedLinkBot@feddit.rocks 1 points 10 months ago

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[–] bluewing@lemm.ee 3 points 10 months ago

Speed Benchys mostly are garbage quality.

[–] beeb@lemm.ee 1 points 10 months ago (1 children)

This is mostly a cooling issue. Not being able to solidify the plastic fast enough after it's been deposited.

[–] Cornpop@lemmy.world 0 points 10 months ago

No shit lol

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[–] FuglyDuck@lemmy.world 5 points 10 months ago

Tune up a coreXY like a Bambu or Voron, use all the latest features in marlin (like MPD thermal and linear advance.)(I assume other firmwares have similar.

[–] soggy_kitty@sopuli.xyz 4 points 10 months ago (2 children)

Yeah does anyone have a link to a 3 min bench print?

[–] Sphks@lemmy.dbzer0.com 11 points 10 months ago (1 children)

3 minute benchy

It's custom made printers and it makes shitty prints.
https://www.youtube.com/watch?v=IRUQBTPgon4

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