u/Rgbigdog

TLDR; When you use the AMS on the X2D combo, you cannot switch the filament buffer output PTFE’s to different nozzles. It is basically hardcoded that the upper output ONLY goes to the Left extruder/nozzle and the lower ONLY goes to the Right extruder/nozzle.

So….

I was going to do my first multi-color print on the X2D and the slicer recommended that the primary color (white) be on the Left nozzle and the two much smaller secondary colors (red & blue) be on the Right.

Since I had them set up the other way around, I needed to switch my AMS to be on the right nozzle. Lazy me says - “It’s easier to just switch the PTFE’s at the extruder inputs (top right on back of printer).

Well then the AMS would NOT LOAD the filament. It would just STOP at the input side of the filament buffer and throw an error (picture attached)

I went round and round and round trying to figure this out.
- I tried different slots in the AMS - nothing
- I tried re-seating the PTFE tubes on the input side of the buffer (where the feed was stopping) - didn’t help.
- I tried to manually feed it through (disconnected the AMS and used a spare piece of filament) - went through fine.
- I noticed that when loading a new roll of filament, the AMS would sometimes push the filament all the way THROUGH the filament buffer (WTF!)
- I tried to re-auto config the AMS / nozzle setup. I can’t remember what it did, but obviously didn’t fix the problem.
- I used one of my AMS’s from the P2S to see if it was an AMS problem. - still failed.

Then I opened a ticket with support and they were only mildly helpful. Sent them the logs and pictures - they mentioned that I may have had the Filament Switch accessory installed incorrectly. I didn’t have a filament switch as you can see in the pictures - but this foreshadowed what the problem was.

I (being the bonehead I am), after staring at the back of the printer for what seemed like hours, finally focused on the printing on the left side of the filament buffer. It clearly says “Left Nozzle” on the top input and “Right Nozzle” on the bottom.

UGH - I re-switched the outputs to go to the correct nozzles and everything started working.

In conclusion.
- Those Filament Buffer Inputs -> Outputs are “hardcoded” if you are using the AMS.
- My guess is the AMS was thinking “hey I’m going to the Right nozzle” but the Filament Buffer tells it “uhhhhh, this is the LEFT nozzle input - you shall not pass!”
- In hindsight, the error message alludes to the problem, but it’s not clear.
- I rechecked the install video and again, it alludes to this “hardcoding” but does not specifically say “DO NOT SWITCH THESE”.

Don’t be a bonehead and switch those outputs!

This only happened once.

When I started a print, the printer made this LOUD grinding noise. The toolhead was trying to move but it clearly couldn’t. No errors thrown by the printer and the only was to stop the issue was to stop the print.

I did take a moment to get a video of the issue happening so I had something to give support.

I’ve opened a ticket with them, but I’m wondering if anyone has seen this issue.

While it hasn’t happened since, I’m really worried there is damage to the gears that move the toolhead.

I tried to do a long overnight print with lots of color changes (first time I’ve tried this) and I got the dreaded “blobs problem.” Turns out the printer had a case of constipation with all the poop that was being generated. The poop bin was only about 1/2 full, but there was a full backup on the chute part. I was able to get everything cleaned out, cleaned the nozzle and the extruder and I’m back in business, but…..

How do I avoid this problem going forward. Do I need to do these long multicolor prints during the day and clean it out periodically? Do I need to use a different poop chute? Is there something else I’m missing?

PS: Any idea why it decided to do such a big filament switch tower? I didn’t slice this myself - just sent it to the printer. Is it something that’s in the design (not visible)?

Thanks

I have a 2012 Roadster Convertible (R59).

I want to add two things to the car and my hope is that I can do it without having to mod the car too much.

1. I want to add a dash cam. I could certainly use a regular stick on the windshield kind, but I’m worried that someone will try to break in through the roof to get it and end up causing a ton of damage. In terms of cams, I definitely want a forward facing and rear camera - so that brings me to my second “want”…..

2. I want to add a rear camera for reversing. Visibility sucks and I have a horrible back, so seeing during backup is a crap shoot :-)

So is there a unicorn that would work for me? I’ve looked at the Fitcamx but it doesn’t appear to fit the R59. I’ve also seen where people get one of those android auto/CarPlay screens - but not sure how well they work.

Does anyone have a solution they are happy with? Is this install complicated (thinking of my crap back) or did you take it someone to get it installed.

I’m in the US on the east coast for reference.

Picture of my car just for fun :-)

Thanks