Geeetech

1: Are there replacement parts in the U.S. for these printers? if so where?

2: Feeder arm is cracked (see pics) are there a metal replacement parts / kits available?

Hi，You can contact your sales and explain the situation.

Another one breaked... have a look to this thing https://www.thingiverse.com/thing:3456879 , maybe be you can use your second extruder to print it.

It will probably break again as it have the same design issues (too thin parts)

Also, I will advice to simply replace both extruders with full metal one

Ty for the post,

A: I printed a similar replacement(s) after beefing up the weak area, works great. See Pic.

B: What is the part number for the metal extruders?

here :
https://www.amazon.fr/Accessoires-dimpr ... 626&sr=8-3

or search for "dual gear extruders aluminium"

(be careful as some version are single gear, but dual gears are really better)

The A20m printer should come with thoses extruders stock even with a little higher cost because that change everything and resolve so much problems.

As a side note I will maybe write a tutorial on some usefull upgrades I ve done on my a20m, as with few modifications (firmware, extruders, bed, nozzle, fans, purgebucket) it become an excellent dual color 3d printer and quite fast (80mm/s with good quality)

Ty for link,

What I was after, and if you produce the tutorial I would luv to see that as I'm new to the 3d printing world.

Thanks Again.

no I did not, I'll find the original and post a make.