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HI all, I have built and installed the new hot end, reflashed the firmware and now my printer is stuck. It powers up but will not move off the "title" screen that you see on startup. I tried reflashing the firmware and changing the printer type to "5"( maxv3) with no change. It will open up in Mattercontrol and the printer connects but it will not run the calibration g code file.

Can you revert back to your pre-HE280 firmware and see what happens.

Looks like I'm having the exact same problem as Penged.

I've just installed the accelerometer board onto my Max 2 as I'm already using an E3Dv6.

After flashing the firmware to v 0.92.2 All I get is the SeemeCNC "title" screen.

I've tried reflashing to version 0.91, the version that I was previously using, and the printer works just fine. Just without the benefits of the accelerometer.

Any thoughts on this would be appreciated

Thanks

Same problem. Monitoring terminal I get:
->Communication State: AttemptingToConnect
<-start
->Communication State: Connected
->M115
(1)<-Free RAM: 879
<-Autoretract:0
<-X:0.00 etc
<-SpeedyMultiply etc
<-iis2dh accelerometer intializing...
<-start
<<repeats from (1)>>

(1)<-Free RAM: 879
<-Autoretract:0
<-X:0.00 etc
<-SpeedyMultiply etc
<-iis2dh accelerometer intializing...
<-start
<<repeats from (1)>>

I've seen this on my printer when the 8 pin HE280 connector was not seated properly and fully connected. Check your connections. I used my multimeter to do continuity checks from the 8 pin connector to the RAMBO board to make sure I did the splicing correctly.

Note: That I usually saw communication errors with this too. And then cycling to reconnect.

Not sure if it matters but I backed up my EEPROM settings to disk and zeroed it before upgrading to the new firmware. Then I manually re-entered any values that I needed, like extruder steps/mm.

Maybe this is the SP-ON connection? A little confused on this because the forums have a write up where it's set to serial pin 2 and the HE280 upgrade has it to the two pin connector next to the thermisters. Is this defined in the firmware somewhere?

OK well one problem solved and onto a new one. I rechecked and remade all me connections ( used a termination strip instead of soldering them) and now it moves. The new problem is my Y axis motor moves downward as the other two move up to the homing position when I run the calibration script. I double checked to make sure my endstops and stepper plugs are correct. I think it has something to do with homing the towers. I tried homing the towers from the printer controls and it does the same thing as the script. Any thoughts?

Glad to hear that you sorted out the connections ... I'm redoing my wiring also, wish me luck...

You'll need to invert the Y axis motor in the firmware definitions for printer #5 ... in the latest firmware image the section starts at line 373 in Configuration.h

// ###### Inverting Axis Settings
#if PRINTER == 1 || PRINTER == 2 || PRINTER ==4
#define INVERT_X_DIR 1
#define INVERT_Y_DIR 0
#define INVERT_Z_DIR 1
#elif PRINTER == 3
#define INVERT_X_DIR 0
#define INVERT_Y_DIR 0
#define INVERT_Z_DIR 0
#elif PRINTER == 5
#define INVERT_X_DIR 1
#define INVERT_Y_DIR 1 <------- change this value to 0
#define INVERT_Z_DIR 1
#endif

Looks like I had a bad connection for the ground and a shoddy multimeter probe.

Anyhow, the problem of being stuck on the title screen seems to have resolved itself ...

On to the next hurdle!!!

Thank you. That did the trick. now I
just need to figure out why my (not) peek fan isnt spinning.

Check that the connectors on your PCB board were installed the right way. I just posted n my V3 build thread with photos so check it out.

Meant to add, does the blue LED by the fan connector light up?

Thank you for the tip. I was betting on a pinched wire or a bad solder joint. I don't think I would have caught the polarity on the connectors. Both the blue and the red lights on the hot end light up but none of the fans were spinning. I really appreciate all the help the forum has given me since I bought my printer. I cannot imagine all the frustration I would have gone through trying to figure it all out if I didnt have the forum. On a related note, I was at Milwaukee Makerfaire and was able to help out a gentleman who has a Kossel with some of his calibrating issues. Of course I suggested that he visit the forum and tried to impress upon him what a wonderful group of people are here.

I'm just wondering if I should run a PID auto tune for the new thermistor.