My Rambo and Onyx issues and fixes
Posted: Wed Aug 07, 2013 2:22 am
Hi guys,
I've been assembling my Rostock Max for the past week or two.
I originally bought the BYOLaser kit back in May.
I had a K40 small Chinese laser - I didn't realise until after the kit shipped that my laser was much too small to cut the parts. The Rostock is a big printer.
So I then decided to rebuild my laser with a new frame to increase cutting area from 300x200mm to 1200x800mm. I'm most of the way through that, but geez, some 3D printed parts would come in handy! So I ended up buying the laser cut parts from SeeMeCNC anyway. Glad I did as the quality is great. Only problem is I got shipped the EZstruder top mount stuff when I have a Steve's extruder, but I'll rig something up.
So late last night I got the wiring all finished and fired her up. Movement straight away!
But then in repetier host commands are queuing up and not doing anything. Thus begins my Rambo issue I do some reading and find I'm on the old Marlin firmware and repetier is meant to be much better.
So I watch SeeMeCNC's video and grab all the right files. Flash the firmware and get "avrdude: ser_send(): write error: sorry no info avail"
Now Rambo ain't working. And uploading in Arduino IDE isn't working either! - timing out or giving various errors "S&*T I've just destroyed my lovely Rambo, but I followed all instructions to a T" I says.
More googling and come across the issue of some boards having a defective bootloader. So I read up on AVR programming etc. It's now 3am and I am very unhappy!
Then on a fairly unrelated arduino thread I find a guy having a "avrdude: ser_send(): write error: sorry no info avail" problem that resolved with different USB ports.
So I unplug the printer from my trusty monitor USB hub and directly in to the back of my PC. And it F&*&(*&#%(&#king works. That was 3 hours I didn't need to waste and stress through, but hey it works!
Sweet, things are going great the next day. PID tune the hot end, great. Put in the command to PID tune the Onyx heated bed and hit enter - printer dies. All power lost. Works fine when turned on again. Happens reliably as soon as I try to heat the bed, either via the repetier button or GCode. Hmmm now I have an Onyx issue... Check all connections - good. Resistance 1.3ohm, which I believe is correct.
Lots more reading. Maybe the PSU is inadequate, but surely they can't be shipping a PSU that just can't cope at all!
I'd followed the assembly guide and put 4 wires for the heated bed from PSU to Rambo and used 14G wire from Rambo to bed. I'd used 4 wires all from the Molex connectors.
So I took a shot in the dark and swapped two of the heated bed wires for the other power wires to Rambo and it works.
I don't know how many rails / circuits this PSU has and whether that has some bearing?
So lessons learnt:
Use main USB ports
Try different wiring combinations.
I hope that helps someone else not spend hours of stress with these same issues.
I've been assembling my Rostock Max for the past week or two.
I originally bought the BYOLaser kit back in May.
I had a K40 small Chinese laser - I didn't realise until after the kit shipped that my laser was much too small to cut the parts. The Rostock is a big printer.
So I then decided to rebuild my laser with a new frame to increase cutting area from 300x200mm to 1200x800mm. I'm most of the way through that, but geez, some 3D printed parts would come in handy! So I ended up buying the laser cut parts from SeeMeCNC anyway. Glad I did as the quality is great. Only problem is I got shipped the EZstruder top mount stuff when I have a Steve's extruder, but I'll rig something up.
So late last night I got the wiring all finished and fired her up. Movement straight away!
But then in repetier host commands are queuing up and not doing anything. Thus begins my Rambo issue I do some reading and find I'm on the old Marlin firmware and repetier is meant to be much better.
So I watch SeeMeCNC's video and grab all the right files. Flash the firmware and get "avrdude: ser_send(): write error: sorry no info avail"
Now Rambo ain't working. And uploading in Arduino IDE isn't working either! - timing out or giving various errors "S&*T I've just destroyed my lovely Rambo, but I followed all instructions to a T" I says.
More googling and come across the issue of some boards having a defective bootloader. So I read up on AVR programming etc. It's now 3am and I am very unhappy!
Then on a fairly unrelated arduino thread I find a guy having a "avrdude: ser_send(): write error: sorry no info avail" problem that resolved with different USB ports.
So I unplug the printer from my trusty monitor USB hub and directly in to the back of my PC. And it F&*&(*&#%(&#king works. That was 3 hours I didn't need to waste and stress through, but hey it works!
Sweet, things are going great the next day. PID tune the hot end, great. Put in the command to PID tune the Onyx heated bed and hit enter - printer dies. All power lost. Works fine when turned on again. Happens reliably as soon as I try to heat the bed, either via the repetier button or GCode. Hmmm now I have an Onyx issue... Check all connections - good. Resistance 1.3ohm, which I believe is correct.
Lots more reading. Maybe the PSU is inadequate, but surely they can't be shipping a PSU that just can't cope at all!
I'd followed the assembly guide and put 4 wires for the heated bed from PSU to Rambo and used 14G wire from Rambo to bed. I'd used 4 wires all from the Molex connectors.
So I took a shot in the dark and swapped two of the heated bed wires for the other power wires to Rambo and it works.
I don't know how many rails / circuits this PSU has and whether that has some bearing?
So lessons learnt:
Use main USB ports
Try different wiring combinations.
I hope that helps someone else not spend hours of stress with these same issues.
