CoreOne Accerometer mounting location?  

RE:

Check the instructions:

https://help.prusa3d.com/article/accelerometer-core-one-mk4-s-mk3-9-s_729349

https://help.prusa3d.com/article/gpio-module_734695

The accelerometer doesn't have a permanent mounting location. It gets slid on the heater block when you do the calibration and gets removed again after.

For the gpio module, I guess they leave it up to you where you mount it.

RE: CoreOne Accerometer mounting location?

Cheers all, not quite sure where the optional accellerometer gets mounted.

I had some issues with the instructions page, so a few additional words:

- Take off Wifi Cover (careful, after taking out the single screw, the wifi board only hangs on the connector to the xBuddy board!!)
- Plug the little jumper cable into the wifi board, route through the cut-out and plug into the xBuddy board, like in the pictures.
- Put the covers back on (careful, the bottom of the electronics cover can snap off parts of the xBuddy board if inserted at an angle!!)

- Take off the silicone sock from the extruder, slide the accelerometer on, with the "lip" to the door.
I find it easier to start with the slightly curved side and then slide the straight side on. But don't push from the side! Just place the slightly curved side in position and then push straight upwards!
I don't really get, why Prusa didn't add a bit more champfer to the edges..
I mean: "Fit the accelerometer to the heater block, by pushing it from the bottom of the hotend. If there is any resistance, do not attempt to push the accelerometer harder, as excessive force might bend the heatbreak. "
I didn't feel comfortable about the force I needed, but it was fine.

- Take off the rubber in the hole in the back, route the cable through and connect it to the wifi board.

- Careful again: I'm not sure if the printer always starts a homing when running the Input Shaping calibration or if mine did, because I didn't home it between switching the printer on and starting the Input Shaping calibration...
Anyway, the print bed moves up to the nozzle, passing the hole in the back and there's not much room for the cable!
So keep an eye on the cable and make sure it won't be pinched.

- run the calibration 🙂

What's quite annoying: I think there's a little error/mistake in the instructions page.
The "Calibration" headline has the same space to the "for MK3.5 [...]" line, as the headline for the MK3.5/s, which made me overlook the switch from "How to mount" to "How to calibrate".
I'd like another paragraph there..

RE: CoreOne Accerometer mounting location?

Check my accelerometer guide - link in sig. 

It was made for the MK4s, but the process on the Core One is very similar. 

RE: CoreOne Accerometer mounting location?

Im going to recommend this for the gpio board.  Nice little unit:

https://www.printables.com/model/1212486-prusa-core-one-single-wifi-and-gpio-cover/comments

I foolishly thought the accelerometer was going to live in the unit and butchered the rubber bung you remove to install it.  Oops.