Adding a Hotbed


#1

Hi,

i wanted to add a hotbed:

Q10: I’d like to add hot bed to mGiraffe. What should I do?

A: There is a hot bed interface on the right side of the heating resistor interface. If you want to upgrade the hot bed, please upgrade the original 12V/5A power supply in advance. We suggest you use a 12V/10A power adapter or switched-mode power supply.

this is not enough information…the right side of the heating resistor interface? do you mean this?

and if so…is there anything in the code that needs adjusting?

thanks!


#2

Hi ChrisP1,

Yes, the interface you marked is correct.
Since adding the hot bed to mGiraffe is belong to function extension for the 3D printer which only for geeks, we do not have detailed instruction.
The program in our default firmware doesn’t contain the hot bed function. We are able to provide the source code of the default program to you if you are Geek and know how to add the hot bed function in the program.


#3

thanks for the connection confirmation:

I followed the following wiki site and made some changes to the firmaware:

http://reprap.org/wiki/Heatbeds_-_A_beginner’s_guide

you can autotune your hotbed. You will need a thermistor for this. I found that when setting the

define TEMP_SENSOR_BED

to the appropriate value (it’s listed in configuration.h) and connecting the termistor to the following:

you will get a reading in the display and you can monitor the temp of your bed.

Thanks.


#4