I just assembled my A350 last night - I was delighted by the materials. Then on the first start up with the 3D printhead, the auto calibration started and the head crashed hard into the build plate then dragged across it, gouging the magnetic plate. I shut off the machine as quick as I could.
I’ve since retried several times only to watch it crash. I found the firmware update to v1.10.1 and inserted a USB drive with the FW file and NO tool head plugged in (this was the only way I found to get past the autocalibration on boot). The A350 updated, but still the same crash.
I then ensured the proximity sensor was 1mm offset using a credit card, but still it’s crashing into the bed.
I can see a red LED when I am holding the head and touching the spatula or near a metal case. But, when I occlude the sensor, the head keeps moving down until I shut off the machine.
See videos:
Autocalibration head crash:
Proximity sensor not working:
I then tried the laser module’s first steps but as it was doing the autofocus, it then also crashed lightly into the middle of the printbed - I shut it off to avoid wrecking that head!
Since none of these first steps moved beyond the opening steps I can’t access any other features on the unit.
Unfortunately, I have no solution for you, but wanted to give you a thumbs up for being quick on the power-off switch. I admit, I’ve heard so many stories about bed gouging and sensor problems that I get anxious every time that head starts moving down towards the print bed.
I’m sure you’ll get this sorted out, and I’ll get used to how the system works, and we can focus on just making cool stuff. Unfortunately, it’s not impossible that people will run into problems (as you have), and it especially sucks when it’s your first experience. Hang in there, try to take a breath, and know that this will get fixed and you’ll be on your way. In my experience, these kickstarted 3-in-1 machines take a certain amount of…commitment and getting to know one another.
I’m an idiot! I went back and double checked the wiring and I had the Z & Y cables swapped - doing properly and the machine seems to be working right now – getting ready to do my first print (an adapter for my incoming Oculus Quest 2)!
You’d be surprised - a LOT of people took it really slow, tried to be really careful, but still managed to make an easy mistake. You’re in good company - very glad you’re up and running!
@ConsummatePro
Is this crash did not damage your linear?
Do you know is there any protection in them?
Today unfortunately I had a similar crash with the laser head, I moved it to the opposite Z direction. After restart I was able to do the necessary job, but I have a fear: something is damaged. I did not tested the other tools yet.
I’ve crashed my head pretty hard into the bed or had problems happen with the cnc where it got stuck. And while it missed steps and lost track of where it was hasn’t caused any lasting damage.
I just completed assembly of my Snapmaker Artisan and the EXACT same head crash as described keeps happening!!During the initial setup, the Right print head crashes into the bed. I hit the shutoff switch immediately…checked all my connections and it keeps happening!!! I was very hopeful with this product but this kind of failure is unforgivable at this price!
You make sure you didn’t mix up the extrusions? and have the axis’s backwards? Also make sure the mounting holes are correct on the DX module to the mounting plate?
When looking at the front of the machine, the PLA is on the left and the support on the right. The DX module seems to be positioned/connected properly. As an engineer myself, it seems like the force sensing element on the right extruder is malfunctioning. The left goes thru the z axis calibration properly but the right starts normally but doesn’t seem to sense and return upon contact with the build platform. Any other suggestions or is this just a bad DX head??
Did you do the update kit for the sensor replacement? have a feeling that coupler isn’t in the right position as when you first opened it and its stuck down when its supposed to start above the L nozzle, give me a sec I’m looking hrough the Wiki so you can see what I’m talking about
I just purchased this a few weeks ago…I don’t know about any sensor updates…was there something I need to do that isn’t covered in the standard Snapmaker assembly video??
The Wiki has all the info about the kit but if your unit is “new” depending on when it was manufactured it could need the replacement kit but I don’t know where their supply chain serial numbers started shipping with the preinstalled upgrades, meaning you could already have it, but I know the smaller stepper motor is what drives the right head down and also retracts it. Might be worth the teardown to check the connections and familiarize yourself with the internals, and double check that wire nut being centered and not pinned below the housing it cradles in, attached is a photo of my DX with the replacement kit installed notice how the Right print head is higher than the left, the video never showed so I don’t know what you are seeing on your side with your DX
