Solved retraction problems

I appreciate all that have suggestions...

I'll lead with: I started noticing the issue when I updated the AVR board in Arduino. but even going back to other versions, I cant get the robo r1 to print correctly...

it prints fine until retraction is involved at which point it doesn't come back down to its' original spot completely and so the printed part is much higher and hollowish than it should be...very much noticeable.

any suggestions?

 

hi...thank you for taking a look...here is the pic..

 

It's definitely not coming back down on the z after a retraction in certain parts...the robo prints perfectly up until retraction comes into play...and up until yesterday it was retracting perfectly and printing flawlessly...

It must have something to do with software because it wasn't an issue until i went to flash the arduino firmware as I do from time to time and there was a suggestion to update the boards and libraries...I installed the AVR board that was suggested and now everything has gone to $h*t....

 

What version of the Robo do you have? R1 or R1+? What firmware did you use to upload to the arduino?

 

I have the R1 and I use the ROBO3DR1V3 firmware

I'm somewhat savvy with this thing and I can't figure out what is going on????

 

V3 unlocks having a writable eeprom. One thing I learned to do now after any firmware updates is to send the M502 command followed be M500 just to make sure the eeprom gets refreshed. Not sure if that will cure your issue but it will at least ensure you are using all the updated settings.

Another thing to verify is that you have 8mm threaded rods instead of 5/16in.

 

I have the original rods that came with the r1 from 2014...I'm not sure what rods they are???

 

Two ways to find out more that you've already updated the firmware. If you didn't you could have done an M503 to get the current z steps and that would have told us. You can either count the threads per inch or if you have a nut of either size you can see if it threads onto the rod.

 

I just measured the rods...they are neither 8mm or 5/16...they are about 7.4mm...

 

here's my m503...

 

2560 is the 8mm, but you already loaded the V3 and that is for 8mm. We don't know what that setting was before. Early R1 had the 5/16 rod and I just want make sure you don't have that.

 

ah...yes...it's always been 2560...

 

I'm almost certain it's the AVR board updater from the firmware...I just installed a different version and now the retraction digs in instead of lifts too high...

any chance you can take a look at yours and tell me what version you have in arduino?

 

Not sure I understand completely. Did you just upload the firmware fresh to the arduino or did you use an AVR programmer to upload a new bootloader to the arduino itself? I know when I open the arduino IDE I get notices of new boards and libraries but always just ignore it.

 

Hey @danzca6 and @Geof, I fixed the problem...I simply reset the artuino physically and uploaded the firmware.

Danzca, I just hit update usually, but this time around i hit install within the board manager of the AVR. I'm somewhat savvy with these things, but I havent gotten into programming so I should leave that alone...I'm super happy i was able to reset the whole thing...

Thank you!!!!!!!!

 

That's fantastic! Glad you got her up and going again.