Re: ok, endstop checking program...
I don't believe there's a buffer, and that the characters are printing out as they're read. If I touch the chip, the floating inputs change states, and it's immediate. Those inputs bounce high and low...
View ArticleRe: Need help with Sanguinololu trouble shooting
Suggest that you change the Mosfets to IRF2804. These have a very low on resistance and I have them switching 22 amps with just a small heatsink. Watch that your power supply can provide sufficient...
View ArticleRe: ok, endstop checking program...
QuoteThose inputs bounce high and low while I'm touching the chip Sounds like the input is floating, neither connected to 5V nor GND. If your endstops are machanical ones, did you turn on the pullup...
View ArticleRe: Sanguino 1.3a and 300 W Power Supply won't work !!!
Check what is the Max power rating of your stepper motor someone uses 2.5A current rating for torque > 40Ncm so it uses more current for the Motor itself, so they need 12V and current rating to be...
View ArticleSanguino 1.3b Power Connector Question.
Hey Everyone, Just a few questions regrading the Sanguino 1.3b board. I recently received my fully assembled board and realised that I got screw terminal version by mistake (my fault), I want to be...
View ArticleNeed Help: Sanguinololu 1.3a/b different temperature
Hi there I have two different sanguinololu 1.3 boards: One from Reprap.me (Sanguinololu 1.3b with an 644P) one from emakershop (Sanguinololu 1.3a with an 1284P). I am using the Honeywell 100K...
View ArticleRe: Sanguino 1.3b Power Connector Question.
QuoteWould I just need to de-solder the screw terminal and solder a Molex or ATX connector in its place? Yes. QuoteAlso is it just one or the other or do I need both the Molex and ATX connectors? That...
View Articletrying to repair sanguinololu need help
I took out the 7805 - > ic1 because i thought i might have fried it. The board powers on when there is usb but not when there is only 12 volts from screw terminals. I then plugged in the board and...
View ArticleRe: trying to repair sanguinololu need help
1) The 0.5V probably comes from having the USB powered. The FTDI chip will be trying to put logic 1 on the RX pin of the ATMEL. That will feed onto the 5V rail through the ESD protection diodes in the...
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Re: Sanguino 1.3b Power Connector Question.
Thanks for the information logical_fallacy. I'm going add the ATX connector today, I'm glad its that simple or it may have been a costly mistake. Quoteif you are working on the board you might aswell...
View ArticleRe: Sanguino 1.3b Power Connector Question.
QuoteWell I was able to successfully install FTDI driver and my PC recognizes the board, I think. But the COM port does not show up. In the Arduino IDE as well as Pronterface I'm unable to select the...
View ArticleRe: Sanguino 1.3b Power Connector Question.
Awesome, that did it. It all seems to be working fine now. Thanks a ton for your help Ben! I really appreciate it. Jack.
View ArticleRe: trying to repair sanguinololu need help
wasnt testing with the usb actually plugged in Thanks so much for your response ! what do you mean vias? If I run a cable to the regulator VIN pin, and disconnect the pin from its track... that might...
View ArticleRe: trying to repair sanguinololu need help
Are you saying you get 0.5V with no power on the board? That would be odd. Perhaps a charged cap somewhere but I would expect it to decay. If you get a decaying voltage measure from 12V to ground then...
View ArticleRe: Uploading strangeness with Sanguinololu and Marlin
nophead Wrote: ------------------------------------------------------- > The Atmega CPU has EPROM where the firmware > program is stored and EEPROM where the firmware > can store things such...
View ArticleHelp running prusa with sanguino
Hi Everyone, I have a prusa mendel reprap. All of the parts are fully assembled and ready to go. I gave up a while back trying to install the software etc to make it run. (the furthest I got was...
View ArticleRe: SD card doesn't work
Hi im tryin to use SD ramps, im enabled it in marlin. the software pronterface can pick up the sd card and read the file. when i click on the file it loads the file and starts printing. however when i...
View ArticleCorrect wiring sequence.
Hi, Please could you help me with the correct wiring sequence for my Sanguinololu and Nema 17 Motors. One Reprap build shows the E & Z Axis ( Red,blue,green,black.) and Y& X axis (...
View ArticleConnectivity issues
I have sanguinololu 1.3 and I am trying to run the sample Blink LED program. But getting the following errors. avrdude: stk500_getsync(): not in sync: resp=0x00 avrdude: stk500_disable(): protocol...
View ArticleRe: Correct wiring sequence.
Bipolar motors are funny like that. Once you have identified the correct pairs, there are 8 possible ways of connecting the pairs. 4 of those go clockwise, the other 4 go counter-clockwise. The actual...
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