I need some help from a Marlin guru:

(Kurt Meister) #1

I need some help from a Marlin guru:

I connected the Makerbase TFT to the PrintrBoard F5. Due to some restrictions I cannot access the PrintrBoard via USB (see [1] and [2]). So I connect over wifi to the Makerbase TFT and get this:

Printer is now online.

T:23 /0 B:0 /0 T0:23 /0 T1:0 /0 @:0 B@:0

OK, thats fine. But when I call “M501” I get:

Printer is now online.


That’s all. Even a “M500” gives no response! :frowning: But I need to know the actual z offset. Btw I can move the printer and homing works too. I also tried “M503” but the result was the same…

Any idea how I can get those listing and values?

[1] https://plus.google.com/u/0/+EricLiensMind/posts/ee55aSNX7Nb
[2] https://github.com/j-laird/Marlin/commit/338641070f043f14e69792a505bdcee63b7d992c

(Stephanie A) #2

If you can send commands then the issue is something is filtering out responses. Some software filters out all responses. I suspect that the makerbase tft is doing it.

(Eric Lien) #3

You can always use something like this and control the printer via a computer over usb in place of the lcd on tx/rx until you get your offset configured. Then once done reconnect the mks tft back to tx/rx for normal operation.

USB to 3.3V TTL 5v VCC UART Serial Cable FTDI Chip Terminated 4 Way Header

(Kurt Meister) #4

@Eclsnowman Yes, that’s what I already planned to do. :slight_smile:

(Kurt Meister) #5

USB2TTL works. :slight_smile: Thanks for your help @Eclsnowman missing/deleted image from Google+

(Kurt Meister) #6

“Printer ist Now online.” Finally :stuck_out_tongue_winking_eye:missing/deleted image from Google+

(Eric Lien) #7

Great to hear you got things working.