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printers-for-people / ACEResearch

Anycubic ACE Pro Reverse Engineering
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Investigate the hardware more #2

Open Jookia opened 3 months ago

Jookia commented 3 months ago

I don't have any hardware for this device, but if anyone's interested to take apart their printer here's what is currently useful:

Jookia commented 3 months ago

Does sending RTS, CTS, or a BREAK over serial do anything?

wiltwong commented 3 months ago

The 4-pin connector on the motherboard and the cable are 4-pin Molex Microfit 3.0 connectors https://www.molex.com/content/dam/molex/molex-dot-com/products/automated/en-us/productspecificationpdf/430/43045/PS-43045-001.pdf

The connector on the motherboard is attached to a USB 2.0 hub controller GL852G in a QFN-28 package https://picture.iczhiku.com/resource/eetop/WYIdsOLaQPdHeBNC.pdf

The motherboard connector pins as shown in the diagram are connected as follows:

image

1 - +3.5V (not sure why this is, since normal USB is typically 5V, it's probably not used as the ACE has it's own power supply) 2 - Ground 3 - GL852G Pin 12 (DM3) aka USB D- 4 - GL852G Pin 13 (DP3) aka USB D+

Jookia commented 3 months ago

Oh wow, thanks for finding this. Would you also be able to see what chip the microcontroller is and identify the stepper motors?

On Wed, Sep 04, 2024 at 12:19:13AM -0700, wiltwong wrote:

The 4-pin connector on the motherboard and the cable are 4-pin Molex Microfit 3.0 connectors https://www.molex.com/content/dam/molex/molex-dot-com/products/automated/en-us/productspecificationpdf/430/43045/PS-43045-001.pdf

The connector on the motherboard is attached to a USB 2.0 hub controller GL852G in a QFN-28 package https://picture.iczhiku.com/resource/eetop/WYIdsOLaQPdHeBNC.pdf

The motherboard connector pins as shown in the diagram are connected as follows:

image

1 - +3.5V (not sure why this is, since normal USB is typically 5V, it's probably not used as the ACE has it's own power supply) 2 - Ground 3 - GL852G Pin 12 (DM3) aka USB D- 4 - GL852G Pin 13 (DP3) aka USB D+

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wiltwong commented 3 months ago

I have not dissasembled my ACE Pro yet, so not at this time.

Jookia commented 2 months ago

I've added notes about the USB to HARDWARE.md.