championjc

the voltages read correctly with the jumper in place. and as i stated above when its off.

still no movement from the x and y axis. the z axis however twitches if i try to move it. it basically moves forward then back to the original position half the time.

so i checked the voltages and got 3.3 on the 3.3, 3.81 on the 5, and 3.36 on VIN. it also seems like one of my steppers shorted when the safety on the power supply popped. if i plug it in the UMcontroller screen dims and just on usb power it gets hot to the touch. i have the dual extruder so i just removed the bad one and swapped the second extruder stepper into that slot.

i pulled the jumper for the arduino power and now it lets me heat to set temp with no problems. i set it to print from sd and it reached print temp said heating done and the UMcontroller showed the x and y changing but the print head wasn't moving. i unplugged everything like you said above. went into CURA and could not get it to connect to the printer. there were no errors it went from opening serial port to connecting to closed. so i installed a custom firmware and was able to connect and control the extruder temp. but could not get any movement out of it. so i reconnected everything and popped the internal breaker in the power supply. for now i'm just going to set it aside till i don't feel like throwing it out the window... any ideas on why the motors don't work?

yes they replaced the arduino first thing because it was dead out of the box. my UMcontroller shows 13.12. i cannot. i will set an increment for it to move and nothing will happen.

hey guys i've been working with the UM people for almost a year on my machine. i've gotten replacement parts for nearly everything but the main board and still no luck getting it working. so i've got a couple of questions. what is the current firmware displayed on the machine with the latest CURA update? what could be causing my machine to not stop at the preset temp when heating the head for a print? should i be able to move the print head via the UMcontroller? basically the problem i'm having is the printer will heat up to 220 then bounce between 220 and hotter temps until it resets no max temp error. or if there is it resets the moment it hits. setting the temp to 200 it seems like it tries to keep it at the right temp but it eventually gives a max temp error. i've also never seen the print head move.

yes the screen blanks and the UM reboots.

ok so i only get max temp on start up. a power cycle or two clears it. moving the print head around while its warming the extruder head does nothing. it continues to warm. i can't get a connection to the printer from my computer once i flip the power switch. loading gcode from the sd card it goes through the heating process and then resets when it gets to the set temperature.

i got through the first run wizard after changing to a custom firmware with a 115200 baud rate. then it stopped connecting to the computer again. i have yet to get any movement from any of the motors. so i am fairly flustered with this. i'd be happy to just print via SD card but i can't seem to get that to work either. it either gives me a max temp error or resets.

it went through the heating process then reset.

no i threw the arduino on the moment i got it. i had no problem updating the firmware. i've got the ulticontroller connected i can scroll through all the settings. so far i can connect to the arduino board but the moment i turn the power on i lose connection. the voltage regulator at IC1 reads 19 and 12 volts as it should.

alright so i got the new arduino board and hooked it up. i can connect to it as long as its turned off. once i turn it on i lose connection. any theories as to why this happens?

yeah sorry was thinking about my extrusion bot its got a 3mm head on it.

the stock nozzle on the ultimaker original. the most inner edge.

I have the same 3mm nozzle on both heads. i just thought about running different layer heights between the two to get good detail on the visible part of the object but quick infill times. as well as using natural color pla for the infill rather than using up colored pla filament.

my expectation for this technique of printing was faster prints without losing quality on the outer surface and the ability to print the filler with natural colored filament and reduce the cost of each individual print. I'm starting to see where this technique would require a lot of specific changes to the Gcode, print speed, etc.

both? the way i am thinking of it working is doing two or three layers of a shorter layer height in two or three rounds of the outer edge of the object then doing one layer for the infill of equal height to the outer edge.

What kind of modifications would it take to the Gcode in CURA to do multiple outer layers at a high detail layer height and a single fill layer to match the height of the outer layers? Also what would it take to use the dual extrusion heads to do this? using the main head for the outer layers and the second head for the fill layers.

win8 on both machines. desktop i get nothing from the arduino being plugged in. on my laptop i got unknown device at first then once i updated the driver it comes up as the chosen board. but still says device malfunctioned and did not start.

ok so i've got the arduino separated from the board. and the drivers set up, but when its hooked up i get a message saying your last usb device that was connected malfunctioned and did not start. when i open device manager i get a message saying device not started (code 10). where do i go from here?

how would i adjust the potentiometer on the display?

can i get some clarification as to how i should test for these voltages. should i test pin 1 to pin 2 and pin 3 to pin 2? also the part at IC2 is flush with the board. testing in the above manner i get 19.25v and 11.95v respectively. i have removed the arduino board and tried connecting it to both my desktop and laptop. my desktop does not register it at all and my laptop says usb device failed to connect.

correction i do not have the pc driver. i have the second extruder and its stepper motor driver but when i try starting the UM with it plugged in the power supply short circuit protection activates.

yes the green lights come on when i power the unit on. yes the fan on the underside comes on. i will have to stop and pick up a volt meter today. i have found that i may not have a driver for the ardruino board and am looking at installing one as well.

just finished building my ultimaker original and the lettering on the display only stays visible for a few seconds before faiding to solid blue. also cannot connect to my computer via usb so i'm at a complete loss for a way forward at this point. any help is apreciated.