Ytec3D Forum

Currently in progress with no promise that I will be able to finish it. HP45 standalone controller V5.00


PXL_20250507_170636164S.jpg

V5.00 PCB image.jpg

This controller will be my attempt at making a controller that works with the Teensy 4.1, with some specific design goals in mind.


It ...

I will reply the same as I have by mail, so hopefully it helps others as well.

Getting the controller to work with a Teensy 4.x is possible. I have just a few days ago had some of the people on the forum here to try and make it work. It is still not entirely there, but is seems possible. As for ...

I spent a day this weekend with @Dries Vandenbroucke trying to get the firmware to work on a V4 controller with a Teensy 4.1. We have gotten to a point where we got the firmware to eject ink, and got the timing correct. There are a few more things that are still untested, the nozzle array might ...

That is absolutely beautiful to see. DIY Polyjet machines are rare to see and seeing one printing an actual (only slightly deformed) Benchy is amazing. I look forward to seeing the roller to flatten the layers, and hope this will help with the warping.

I would try and keep your schematic either completely compatible with the V3 design, or the V4 design. It might be possible to mix the V3 address design, and the V4 primitive design, but I cannot judge completely if that will work.

As for the values you are showing. The variables you are showing is ...

If you used the pins as seen in the schematic below, you can simply use the V3 table and microcontroller pins.

The nozzle table exists to convert the nozzle electrical connections to the pins of the microcontroller. Ideally this should just go from 0-13 and 0-21, but routing the PCB that way is extremely difficult, so the printhead might be connected to other pins on the microcontroller and 4017 address ...

I will be gone for a while, and not keep up with the forum too much. Since new users need to be approved by me, I cannot guarantee that there won't be a big delay. I will be back in about 4 weeks.

There is no fundamental reason why to use it, other than it being available, has good peripherals, plenty of I/O, and good libraries. The ESP32 was either new, or not available when I started, this, and I stuck with what worked.

The ESP32 is powerful enough to run this. I think it has enough IO ...

It is quite a complicated question, because there are quite a few ways to go about it. It is also quite challenging to talk about, because there are 4 different elements that exist right now, the V3 controller, the V3 firmware, the V4 controller and the V4 firmware.

As a start, using the V3 ...