I've looked through all the documentation and can't figure out what's wrong here. I set up the arduino program for use with the sanguino board, set the USB port to /dev/ttyUSB0, and can compile the code successfully. but, when I try to upload the software I get: [code] problem uploading to board[/code] [code] avrdude: stk500_recv(): programmer is not responding [/code] when I plug the sanguino USB into my computer the power LED turns on and the debug LED starts flashing red. I tried pressing the reset button both before and after hitting upload with no luck. If I turn the power to everything else on and leave it for a while, eventually the axis motors start pulsating in place. does anyone know how i can get the code to upload? I'm using ubuntu 8.10. https://reprap.org/forum/read.php?12,20395,20395#msg-20395 Sat, 18 Apr 2026 12:51:01 -0400 Phorum 5.2.23 https://reprap.org/forum/read.php?12,20395,21063#msg-21063 https://reprap.org/forum/read.php?12,20395,21063#msg-21063 letsburn00 RepRap Host Tue, 03 Feb 2009 06:06:50 -0500 https://reprap.org/forum/read.php?12,20395,20887#msg-20887 https://reprap.org/forum/read.php?12,20395,20887#msg-20887 [objects.reprap.org]]]> emt RepRap Host Wed, 28 Jan 2009 05:27:33 -0500 https://reprap.org/forum/read.php?12,20395,20842#msg-20842 https://reprap.org/forum/read.php?12,20395,20842#msg-20842 letsburn00 RepRap Host Mon, 26 Jan 2009 08:27:24 -0500 https://reprap.org/forum/read.php?12,20395,20841#msg-20841 https://reprap.org/forum/read.php?12,20395,20841#msg-20841 emt RepRap Host Mon, 26 Jan 2009 08:07:11 -0500 https://reprap.org/forum/read.php?12,20395,20824#msg-20824 https://reprap.org/forum/read.php?12,20395,20824#msg-20824
c:/documents and settings/customer/desktop/arduino-0011/hardware/tools/avr/bin/../lib/gcc/avr/4.1.2/../../../../avr/lib/avr5/crtm644p.o: In function `__vectors':


../../../../../avr-libc-1.4.6/crt1/gcrt1.S:51: undefined reference to `main'


Couldn't determine program size: C:\Documents and Settings\customer\Desktop\arduino-0011\hardware/tools/avr/bin/avr-size: 'C:\Documents and Settings\customer\Desktop\gcode_interpreter\applet\gcode_interpreter.hex': No such file


avrdude: stk500_getsync(): not in sync: resp=0x30
avrdude: stk500_disable(): protocol error, expect=0x14, resp=0x51


The problem of needing a file called gcode_intepreter.hex seems to pop up. I tried using version 12 but without getting it to load. I just tried this on another computer using version 11 and this error came up. Any ideas? I tried resetting the sanguino for 10 seconds and no change.


Edit: And I can't get it to normally compile either, the error I get then is























c:/documents and settings/customer/desktop/arduino-0011/hardware/tools/avr/bin/../lib/gcc/avr/4.1.2/../../../../avr/lib/avr5/crtm644p.o: In function `__vectors':


../../../../../avr-libc-1.4.6/crt1/gcrt1.S:51: undefined reference to `main'


Couldn't determine program size: C:\Documents and Settings\customer\Desktop\arduino-0011\hardware/tools/avr/bin/avr-size: 'C:\DOCUME~1\customer\LOCALS~1\Temp\build5394.tmp\gcode_interpreter.hex': No such file



I think that I'll need to learn C at some point in future.]]> letsburn00 RepRap Host Sun, 25 Jan 2009 08:25:33 -0500 https://reprap.org/forum/read.php?12,20395,20722#msg-20722 https://reprap.org/forum/read.php?12,20395,20722#msg-20722
I have not tried Chris's firmware and I think I will take a look at it this weekend.

The problem you might be having might be caused by the host software overriding the preferances set in the gcode interpiter.

Bruce]]> brucew RepRap Host Thu, 22 Jan 2009 12:19:00 -0500 https://reprap.org/forum/read.php?12,20395,20713#msg-20713 https://reprap.org/forum/read.php?12,20395,20713#msg-20713
Thats exactly the problem all three axis are 6mm thread with 400 step stepers. using Chris's firm ware all axies work corectly to the mm works correctly.
It is only when using the host SW that the settings on the host need to be set diffrently just for the Z axis Setting it to 200 steps/mm resolves the problem.
This is not the correct value for a 6mm x 1mm thread with 400 step motor.]]> bodgeit2 RepRap Host Thu, 22 Jan 2009 08:34:08 -0500 https://reprap.org/forum/read.php?12,20395,20690#msg-20690 https://reprap.org/forum/read.php?12,20395,20690#msg-20690
Bruce]]> brucew RepRap Host Wed, 21 Jan 2009 14:03:22 -0500 https://reprap.org/forum/read.php?12,20395,20689#msg-20689 https://reprap.org/forum/read.php?12,20395,20689#msg-20689 slade RepRap Host Wed, 21 Jan 2009 13:47:01 -0500 https://reprap.org/forum/read.php?12,20395,20687#msg-20687 https://reprap.org/forum/read.php?12,20395,20687#msg-20687 bobt RepRap Host Wed, 21 Jan 2009 13:40:45 -0500 https://reprap.org/forum/read.php?12,20395,20683#msg-20683 https://reprap.org/forum/read.php?12,20395,20683#msg-20683 slade RepRap Host Wed, 21 Jan 2009 13:27:20 -0500 https://reprap.org/forum/read.php?12,20395,20682#msg-20682 https://reprap.org/forum/read.php?12,20395,20682#msg-20682 bobt RepRap Host Wed, 21 Jan 2009 13:24:17 -0500 https://reprap.org/forum/read.php?12,20395,20678#msg-20678 https://reprap.org/forum/read.php?12,20395,20678#msg-20678
Bruce]]> brucew RepRap Host Wed, 21 Jan 2009 12:12:56 -0500 https://reprap.org/forum/read.php?12,20395,20675#msg-20675 https://reprap.org/forum/read.php?12,20395,20675#msg-20675 freds RepRap Host Wed, 21 Jan 2009 11:40:09 -0500 https://reprap.org/forum/read.php?12,20395,20673#msg-20673 https://reprap.org/forum/read.php?12,20395,20673#msg-20673
Bruce Wattendorf]]> brucew RepRap Host Wed, 21 Jan 2009 10:11:29 -0500 https://reprap.org/forum/read.php?12,20395,20672#msg-20672 https://reprap.org/forum/read.php?12,20395,20672#msg-20672
You might just have to adjust your z-axis steps per mm setting this will vary from machine to machine depending on what you use as gears to drive the belt. It will be a lot slower then the x and y axis, which can be a pain if you have a tight zaxis system.


Bruce]]> brucew RepRap Host Wed, 21 Jan 2009 10:08:40 -0500 https://reprap.org/forum/read.php?12,20395,20644#msg-20644 https://reprap.org/forum/read.php?12,20395,20644#msg-20644
The firmware im using is from Chris Meighan called "New, improved G-code firmware for RepRap " How did you resolve the Z axis jog resolution problem in the host SW.. here is a bit from my blog.

"the only problem seen using the Host software is some kind of resolution problem with the Z axis where instead of 400 steps per mm you need to set this to 200mm don't know why yet. The firm ware from Chris seems to be correct in stand alone mode, not yet down loaded the source for the Host to investigate."]]> BodgeIt RepRap Host Tue, 20 Jan 2009 15:00:30 -0500 https://reprap.org/forum/read.php?12,20395,20531#msg-20531 https://reprap.org/forum/read.php?12,20395,20531#msg-20531
as for the extruder, it looks like there's just too much aluminum in the parts that I got from Zach to fully heat the tip. I took it apart and found out that the plastic was melting and then re-cooling before it got extruded. Aluminum has a relatively low specific heat, and there's a lot of aluminum in the tips that Zach has. So, I sawed the tip off a steel bolt, and machined it down into a much smaller tip with the nichrome coil extending almost to the tip. the downside is that i can't change the tip size without a new nichrome coil and thermistor, unless i decided to drill it out and jbweld a new tip on. hopefully this will work. I'm still trying to figure out the problem with the axis multiplication coefficient.]]> slade RepRap Host Fri, 16 Jan 2009 19:43:04 -0500 https://reprap.org/forum/read.php?12,20395,20530#msg-20530 https://reprap.org/forum/read.php?12,20395,20530#msg-20530
I checked everything and it seems to be the Gcode software it self I even check my wiring and swaped my board.

The problem I am having is that the z axis only moves in one direction and also it will not home. it might be caused by the host software it self I am using the host software to talk to the gcode software..

Also your extruder motor might be wired backwards?

Bruce Wattendorf]]> brucew RepRap Host Fri, 16 Jan 2009 19:14:02 -0500 https://reprap.org/forum/read.php?12,20395,20478#msg-20478 https://reprap.org/forum/read.php?12,20395,20478#msg-20478 slade RepRap Host Thu, 15 Jan 2009 23:57:37 -0500 https://reprap.org/forum/read.php?12,20395,20477#msg-20477 https://reprap.org/forum/read.php?12,20395,20477#msg-20477 slade RepRap Host Thu, 15 Jan 2009 23:51:09 -0500 https://reprap.org/forum/read.php?12,20395,20465#msg-20465 https://reprap.org/forum/read.php?12,20395,20465#msg-20465
I will make sure my board is working ok by switching to one of the other axis's and let you know..

Bruce]]> brucew RepRap Host Thu, 15 Jan 2009 18:29:10 -0500 https://reprap.org/forum/read.php?12,20395,20463#msg-20463 https://reprap.org/forum/read.php?12,20395,20463#msg-20463
Let me know if you find anything out, if not I'll take a look at it this weekend. Since we both have the same problem with the same axis, it's most likely software, unfortunately.]]> slade RepRap Host Thu, 15 Jan 2009 17:25:20 -0500 https://reprap.org/forum/read.php?12,20395,20462#msg-20462 https://reprap.org/forum/read.php?12,20395,20462#msg-20462
Bruce]]> brucew RepRap Host Thu, 15 Jan 2009 16:49:04 -0500 https://reprap.org/forum/read.php?12,20395,20461#msg-20461 https://reprap.org/forum/read.php?12,20395,20461#msg-20461
although, now the Z axis is acting a bit strange. i can jog it down, but when i try jogging it back up there's just a tiny blip and then it stops. if I press home, nothing happens. i have to put something in between the upper opto end stop and remove it, then press home, and then the axis will move back up for ~3 seconds before stopping. I'm not sure what's going on here. the hardware/software overall seems pretty flakey at the moment. I'll take another look at it when i get the time.]]> slade RepRap Host Thu, 15 Jan 2009 16:30:01 -0500 https://reprap.org/forum/read.php?12,20395,20450#msg-20450 https://reprap.org/forum/read.php?12,20395,20450#msg-20450
I just ran into this when I was trying to use the I2c bus for the LCD board and it did not work.

Let me know

Bruce Wattendorf]]> brucew RepRap Host Thu, 15 Jan 2009 13:29:33 -0500 https://reprap.org/forum/read.php?12,20395,20439#msg-20439 https://reprap.org/forum/read.php?12,20395,20439#msg-20439
Did you change the defines in thermistortable.h to match your setup?]]> emt RepRap Host Thu, 15 Jan 2009 09:23:30 -0500 https://reprap.org/forum/read.php?12,20395,20431#msg-20431 https://reprap.org/forum/read.php?12,20395,20431#msg-20431 slade RepRap Host Thu, 15 Jan 2009 04:22:39 -0500 https://reprap.org/forum/read.php?12,20395,20427#msg-20427 https://reprap.org/forum/read.php?12,20395,20427#msg-20427
The compilation error with the gcode is due to the new arduino software. I downgraded to version 011 and now the code uploads to my sanguino. Also I got the following error while trying to create the gcode:

"Exception in thread "Producer" java.lang.OutOfMemoryError: Java heap space"

so I edited the execution code in the "reprap" executable to become:

"java -Xms32m -Xmx1024m -cp $CLASSPATH -Djava.library.path=. org.reprap.Main"

I think for some reason the heap space definition already included didn't work because I'm using java 1.6.0 instead of OpenJDK. -Xms32m sets the starting java heap space, and -Xmx1024m sets the max heap space.

Another error I had was listed on the opto end stop build page, on some of the end stops high and low are inverted, so you have to edit #define ENDSTOPS_INVERTING 1 in parameters.h

the last error I had (so far) was when I tried controlling the sanguino from within the host software, nothing worked. I realized that when I was starting the host software, it was automatically setting the sanguino as /dev/ttyUSB0, while the arduino software (tools>serial port) listed it as /dev/ttyUSB1. I don't know how to change what it's set as within the host software, so I just unplugged the sanguino, plugged it back in, and everything works.

now, on to see if I can make a part.]]> slade RepRap Host Thu, 15 Jan 2009 00:05:58 -0500 https://reprap.org/forum/read.php?12,20395,20425#msg-20425 https://reprap.org/forum/read.php?12,20395,20425#msg-20425 slade RepRap Host Wed, 14 Jan 2009 18:46:04 -0500