# BTT Manta M8P Extruder **URL:** \ **Category:** General Discussion\ **Created:** [March 29, 2023, 11:41am UTC](https://klipper.discourse.group/t/btt-manta-m8p-extruder/7520 "2023-03-29T11:41:27Z")\ **Posts on this page:** 11\ **Page:** 1
**Author:** ![PhilG](https://avatars.discourse-cdn.com/v4/letter/p/a88e57/32.png) [@PhilG](https://klipper.discourse.group/u/PhilG)\ **Post date:** [March 29, 2023, 11:41am UTC](https://klipper.discourse.group/t/btt-manta-m8p-extruder/7520/1 "2023-03-29T11:41:27Z")
### Basic Information: Geeetech A20 M8p+CB1 `klippy.log` Hi all Phil here, noob with Klipper i have purchased a BTTManta M8P to replace the failing stock board. i have had “fun” working out how to install and configure Klipper, and working my way through all the challenges that that threw up. So far i have the bed and nozzle heaters working, x and y on sensor less homing. Z controlled by a BLTouch. Z offset configured. everything finally coming together, all bar the extruder!!! if i run stepper\_buzz on x, y and z i get the expected oscillation. absolutely nothing. for fault finding i swapped the cable for x and the extruder. re running the stepper\_buzz i now have the extruder oscillating but x is stagnant. stepper driver i hear you say, i then swapped the driver for x and the extruder. extruder, plugged into x oscillates but x, in the extruder port will not. all i can see left is the config… i have searched and read every thing i can find regarding the correct pin assignment and it looks like there may be an issue with motor 6,7 and 8 but they all state the same config for motor 5 is there anyone out there that could possibly shed some light as to where to look next be fore i pull my remaining hair out!!! i have tried on other motor ports but to no avail thanks in advance Phil ### Describe your issue: … [klippy (8).log](https://klipper.discourse.group/uploads/short-url/etGjexsjHpFMGGXzRDXq17zQpN.log) (687.5 KB) ---
**Author:** ![jakep\_82](https://avatars.discourse-cdn.com/v4/letter/j/ea666f/32.png) [@jakep\_82](https://klipper.discourse.group/u/jakep_82)\ **Post date:** [March 29, 2023, 4:11pm UTC](https://klipper.discourse.group/t/btt-manta-m8p-extruder/7520/2 "2023-03-29T16:11:05Z")
> [stepper\_z1] > step\_pin = !PD3 > dir\_pin = PD2 > enable\_pin = PD5 > endstop\_pin = probe:z\_virtual\_endstop > microsteps = 16 > rotation\_distance = 8 Change the enable pin to `!PD5`. ---
**Author:** ![PhilG](https://avatars.discourse-cdn.com/v4/letter/p/a88e57/32.png) [@PhilG](https://klipper.discourse.group/u/PhilG)\ **Post date:** [March 29, 2023, 6:27pm UTC](https://klipper.discourse.group/t/btt-manta-m8p-extruder/7520/3 "2023-03-29T18:27:59Z")
Hi jakep\_82 thanks for that, have made the change, still no extruder!!?? ---
**Author:** ![jakep\_82](https://avatars.discourse-cdn.com/v4/letter/j/ea666f/32.png) [@jakep\_82](https://klipper.discourse.group/u/jakep_82)\ **Post date:** [March 29, 2023, 6:40pm UTC](https://klipper.discourse.group/t/btt-manta-m8p-extruder/7520/4 "2023-03-29T18:40:06Z")
Please post a new log. ---
**Author:** ![PhilG](https://avatars.discourse-cdn.com/v4/letter/p/a88e57/32.png) [@PhilG](https://klipper.discourse.group/u/PhilG)\ **Post date:** [March 29, 2023, 7:15pm UTC](https://klipper.discourse.group/t/btt-manta-m8p-extruder/7520/5 "2023-03-29T19:15:06Z")
[klippy (9).log](https://klipper.discourse.group/uploads/short-url/prhBE6rgl6bVF0cjStcrtLWf0qT.log) (1.2 MB) sending again ---
**Author:** ![EddyMI3D](https://yyz2.discourse-cdn.com/free1/user_avatar/klipper.discourse.group/eddymi3d/32/1981_2.png) [@EddyMI3D](https://klipper.discourse.group/u/EddyMI3D)\ **Post date:** [March 29, 2023, 7:27pm UTC](https://klipper.discourse.group/t/btt-manta-m8p-extruder/7520/6 "2023-03-29T19:27:53Z")
@jakep_82 asked you to change this line: ```auto [stepper_z1] ... enable_pin = PD5 ``` to ```auto [stepper_z1] ... enable_pin = !PD5 ``` If the extruder does not work, try this: ```auto [extruder] ... enable_pin = PD1 ``` to ```auto [extruder] ... enable_pin = !PD1 ``` * * * BTW @jakep_82 : Please use code braces when you post code: ![Format](https://global.discourse-cdn.com/free1/uploads/klipper/original/2X/6/643ab9def96b03089cfb0c194628129fcc96b3f8.png) ---
**Author:** ![NAPCAL](https://yyz2.discourse-cdn.com/free1/user_avatar/klipper.discourse.group/napcal/32/1794_2.png) [@NAPCAL](https://klipper.discourse.group/u/NAPCAL)\ **Post date:** [March 29, 2023, 10:20pm UTC](https://klipper.discourse.group/t/btt-manta-m8p-extruder/7520/7 "2023-03-29T22:20:50Z")
@PhilG What version is your M8P? The stepper pins for M6 - M8 are different between the two versions. ![IMG_8092](https://global.discourse-cdn.com/free1/uploads/klipper/original/2X/8/84142accbd6666d2e39f98935eab55e0c49d1723.jpeg) ![IMG_8093](https://global.discourse-cdn.com/free1/uploads/klipper/original/2X/d/d4289d84f68ccbe72ee7e669a2e3a3806ec6e9e7.jpeg) ---
**Author:** ![printCrab](https://avatars.discourse-cdn.com/v4/letter/p/49beb7/32.png) [@printCrab](https://klipper.discourse.group/u/printCrab)\ **Post date:** [March 29, 2023, 10:21pm UTC](https://klipper.discourse.group/t/btt-manta-m8p-extruder/7520/8 "2023-03-29T22:21:04Z")
Is the cable plugged into the 4th or 5th connection on the Manta board? it has the 3rd and 4th running in parallel. ---
**Author:** ![PhilG](https://avatars.discourse-cdn.com/v4/letter/p/a88e57/32.png) [@PhilG](https://klipper.discourse.group/u/PhilG)\ **Post date:** [March 30, 2023, 7:06am UTC](https://klipper.discourse.group/t/btt-manta-m8p-extruder/7520/9 "2023-03-30T07:06:12Z")
Hi guys I run 2 z axis motors. 1 to4 look after motion and using 5 for the extruder. ---
**Author:** ![PhilG](https://avatars.discourse-cdn.com/v4/letter/p/a88e57/32.png) [@PhilG](https://klipper.discourse.group/u/PhilG)\ **Post date:** [March 30, 2023, 4:11pm UTC](https://klipper.discourse.group/t/btt-manta-m8p-extruder/7520/10 "2023-03-30T16:11:35Z")
@NAPCAL … my saviour. Now have extruder in motor8 configured to v1.1. Still getting driver errors. The 2209 is now in standalone mode I can extrude molten plastic​:+1:😀😇 The next hurdle is getting my head around macros. Configuration and calibration. Thanx everyone for the advice 😉 ---
**Author:** ![EddyMI3D](https://yyz2.discourse-cdn.com/free1/user_avatar/klipper.discourse.group/eddymi3d/32/1981_2.png) [@EddyMI3D](https://klipper.discourse.group/u/EddyMI3D)\ **Post date:** [June 16, 2024, 8:00pm UTC](https://klipper.discourse.group/t/btt-manta-m8p-extruder/7520/11 "2024-06-16T20:00:46Z")