Search found 3 matches

by FranatiX
Sat Mar 14, 2020 5:20 am
Forum: A20T
Topic: Fan control with A20T / GT2560 V4
Replies: 1
Views: 952

Fan control with A20T / GT2560 V4

I like to know, why Geeetech didn't made it possible to control fan speeds of chassis fan and extruder fan? The GT2560 V4 has 4 fan connectors with 3 seperate pwm pins. J30 is wired to the part cooler and is adjustable. Ok so far. J31 could be wired to the printhead, but the wire at the connector fo...
by FranatiX
Sat Mar 14, 2020 3:57 am
Forum: Firmware
Topic: how to connect USBtinyISP Programmer to GT2560 V4 board
Replies: 6
Views: 8302

Re: how to connect USBtinyISP Programmer to GT2560 V4 board

Take a look at the backside of the mainboard. I can't believe that it's possible to flash a bootloader using the 9pin header. To me it looks like it is to connect x,y,z max endstops.
by FranatiX
Tue Feb 18, 2020 2:30 am
Forum: A20T
Topic: GT2560 V4 Connections for Installing Bootloader
Replies: 7
Views: 2932

Re: GT2560 V4 Connections for Installing Bootloader

I found a very easy way for me to flash a new firmware to this board using the Geeetech (Smatto) Firmware Upgrador from the Geeetech Download Area ;) 0. Power off the printer (and all other devices that use serial (COM) ports) and also close all programs that could try to connect to the printer, whe...