Hi Everyone,
Hopefully someone can help with this one.
I recently got an Anet A8/Prusia i3 which, when delivered, was missing the cabling for the heatbed - so I figured on upgrading the cabling whilst I’m at making a new lead up.
The connections look like standard 3 & 6 pin JST Connectors - Can anyone who has the same printer show me where the wires lead off to for the heatbed? i.e where the B_T & BED leads go in the ++ – 6 pin connector?
Regards
James
1 Like
Hi James,
I included two photos to clarify how to hook up the heated bed to the Anet A8 motherboard. In short:
- Connect motherboard left bed connector to + on heated bed with thick red wire
- Connect motherboard right bed connector to - on heated bed with thick black wire
- The two middle pins of the heated bed should be connected to pin 1 and 3 of the connector marked B_T on the motherboard. Polarity shouldn’t matter.
Good luck.
Regards,
Paul
1 Like
Paul,
Thank you so much for taking the time to reply & for the photo’s!
I’ll wire it up & test, I take it the extra + & - pins are for a bed upgrade such as the Mosfet upgrade & not used as standard?
Hopefully will be able to start using the printer now!
Kind Regards
James
Hi James,
The connector in my photo is the unmodified, original version, but I’m going to replace it with a MOSFET module. This is highly recommended to prevent overheating the wires and/or other parts of the printer. The standard connector and wiring set is not designed to handle large amounts of current. It’s a design flaw from Anet that should have been fixed.
Learn more about this here: https://3dprint.wiki/reprap/electronics/heatbed_mosfet
If you’re not going to use a MOSFET module, I recommend that you connect the red wire to both + terminals on the heated bed and the black wire to both - terminals. This way the current is distributed more evenly.
Regards,
Paul
Thanks again Paul.
I’ll consider the Mosfet upgrade once I run a few prints & get the hang of the printer.
Good tip on the wiring to the heatbed too - as I’m making a new cable up I’ll certainly use both terminals & some decent wire.
I appreciate your time
Regards
James
Matwal
6
Hey,
Just a random question, appears we have the same heatbed, was one of the four corners screw holes larger than the other 3? I appreciate your time.
Nope,
The screw holes were the same size on mine.
Do your screws fit the bottom section where you screw on the butterfly nut underneath?
Regards
James
