19
my crazy idea to power a ender3v2 off USBC PD
(reddthat.com)
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
this post was submitted on 26 Nov 2023
19 points (91.3% liked)
3DPrinting
15583 readers
147 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
-
No bigotry - including racism, sexism, ableism, homophobia, transphobia, or xenophobia. Code of Conduct.
-
Be respectful, especially when disagreeing. Everyone should feel welcome here.
-
No porn (NSFW prints are acceptable but must be marked NSFW)
-
No Ads / Spamming / Guerrilla Marketing
-
Do not create links to reddit
-
If you see an issue please flag it
-
No guns
-
No injury gore posts
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 
Moderation policy: Light, mostly invisible
founded 1 year ago
MODERATORS
You could theoretically split some of that power from multiple sources though. Run one USB-C line to power the hot end, one to run the bed, and one for the electronics and motors.
Would get pretty complicated pretty quick, but it might work with a LOT of effort.
That would be difficult because you would need to somehow separate the power control MOSFET's from the driver boards so that the controller can still feed them a PWM signal for temp control, but the power would be provided from a separate dedicated usbPD driver board for each set of MOSFETs. At that point it's really not worth the effort.
USBC PD could work for my old monoprice select mini v1 https://youtu.be/VehfqrkoXJA
Here is an alternative Piped link(s):
https://piped.video/VehfqrkoXJA
Piped is a privacy-respecting open-source alternative frontend to YouTube.
I'm open-source; check me out at GitHub.
Could you not just do something similar to what printers with mains heated beds do and run the bed/hotend heater to a relay and different power bank?
Sure, but on these fully DC printers all the power control hardware is integrated into the main board and supplied from a single main power rail. You'd have to basically build a separate power control board with that would allow you to isolate those MOSFET's on their own power rail and then jump the PWM control signal over to it from the main board. Decent amount of electronics knowledge and skill required to pull that off.
Yeah but why would you need to do that? You're isolating the second power source behind a relay and switching it using the normal controller.