this post was submitted on 10 Jan 2024
84 points (92.0% liked)

3DPrinting

15276 readers
80 users here now

3DPrinting is a place where makers of all skill levels and walks of life can learn about and discuss 3D printing and development of 3D printed parts and devices.

The r/functionalprint community is now located at: !functionalprint@kbin.social or !functionalprint@fedia.io

There are CAD communities available at: !cad@lemmy.world or !freecad@lemmy.ml

Rules

If you need an easy way to host pictures, https://catbox.moe may be an option. Be ethical about what you post and donate if you are able or use this a lot. It is just an individual hosting content, not a company. The image embedding syntax for Lemmy is ![](URL)

Moderation policy: Light, mostly invisible

founded 1 year ago
MODERATORS
 

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.

you are viewing a single comment's thread
view the rest of the comments
[–] beeb@lemm.ee 72 points 8 months ago* (last edited 8 months ago) (1 children)

Have you seen how fast printers with stepper motors can get? They print benchies in less than 3 minutes. The bottleneck is not the motion system, it's either the hot-end or the part cooling. Also stepper are super accurate and very flexible. Drivers are advanced and can tune for torque, speed, sound etc. Collision detection and skipped step detection is also a thing.

[–] brightandshinyobject@lemmy.world 12 points 8 months ago (4 children)

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

[–] towerful@programming.dev 14 points 8 months ago (2 children)
[–] Cornpop@lemmy.world 7 points 8 months ago (4 children)

The print as absolute shit though. Literal garbage.

[–] DistractedDev@lemmy.world 7 points 8 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 8 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 8 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 8 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 8 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 8 months ago

Here is an alternative Piped link(s):

https://piped.video/f5OHYZbrHjs?si=LruE_T63UnlSRWa0

Piped is a privacy-respecting open-source alternative frontend to YouTube.

I'm open-source; check me out at GitHub.

[–] bluewing@lemm.ee 2 points 8 months ago

Speed Benchys mostly are garbage quality.

[–] beeb@lemm.ee 1 points 8 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 8 months ago
[–] PipedLinkBot@feddit.rocks 3 points 8 months ago

Here is an alternative Piped link(s):

https://piped.video/IRUQBTPgon4

Piped is a privacy-respecting open-source alternative frontend to YouTube.

I'm open-source; check me out at GitHub.

[–] FuglyDuck@lemmy.world 5 points 8 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 8 months ago (2 children)

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

[–] Sphks@lemmy.dbzer0.com 11 points 8 months ago (1 children)

3 minute benchy

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

[–] PipedLinkBot@feddit.rocks 2 points 8 months ago

Here is an alternative Piped link(s):

https://www.piped.video/watch?v=IRUQBTPgon4

Piped is a privacy-respecting open-source alternative frontend to YouTube.

I'm open-source; check me out at GitHub.