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HELP!! Motors humm but don't move Endstops installed. RAMPs 1.4 Marlin Firmware

Posted by pastlifeuknow 
I personally am new to Reprap but have had the assistance of a classmate who has built both a Prusa and got a broken Cup Cake operational. He's also been involved in making I believe a huxley and one other (can't remember which ones was just chatting with him as he printed parts for them. He later confirmed they were operational).

I've looked every where to solve my issues. I had a 230W power supply. My motors would turn on move for a second then turn off and I'd lose connection. Thought it was power supply because minimal requirements according to forum and reprap.org is 300W power supply. Realized after installing 500W power supply (coolmax V-500) that I had forgotten to Change BAUD rate in Firmware. However now motors don't move at all connection is confirmed by pronterface reacting to endstops ( message display saying endstop hit)

Now with new power supply and Marlin firmware on my RAMPs 1.4 my motors Humm but no matter the setting of the current limiter on the Pololus I get no motion.

My configuration and parts are as follows

-Firstly its a Prusa Mendel

-Ok so I've got these Stepper motors: Spikenzye Labs Motors

-Installed these Stepper drivers : Pololu Drivers

-Ramps from: Mix Shop

-Endstops are Installed normally closed. Firmware changed to take this into account

-BAUD tried at 9600, 11500 and 25000 115000 and 250000

-Marlin Firmware. I changed the code about motherboard to 34 which is for RAMPS (only RAMPS 1.3 in code this a problem?)

-No heat bed installed nor is the temperature sensor or heater is installed.

-Two 12V and grounds are plugged in to the 11Amp plug of ramps and one 12V and ground into the 5amp plug. (this should be able to handle more current then needed up to (by my head math) 34amps on the 11 amp side and 17 on the 5amp)


Further tests I've done is to confirm the wire pairs with Ohm meter. I confirmed they match the color code and ensured they were plugged in properly into the RAMPS 1.4.

I also disabled the heat sensor with the following section of the marlin code:
//// Temperature sensor settings:
// -2 is thermocouple with MAX6675 (only for sensor 0)
// -1 is thermocouple with AD595
// 0 is not used
// 1 is 100k thermistor - best choice for EPCOS 100k (4.7k pullup)
// 2 is 200k thermistor - ATC Semitec 204GT-2 (4.7k pullup)
// 3 is mendel-parts thermistor (4.7k pullup)
// 4 is 10k thermistor !! do not use it for a hotend. It gives bad resolution at high temp. !!
// 5 is 100K thermistor - ATC Semitec 104GT-2 (Used in ParCan) (4.7k pullup)
// 6 is 100k EPCOS - Not as accurate as table 1 (created using a fluke thermocouple) (4.7k pullup)
// 7 is 100k Honeywell thermistor 135-104LAG-J01 (4.7k pullup)
// 8 is 100k 0603 SMD Vishay NTCS0603E3104FXT (4.7k pullup)
// 9 is 100k GE Sensing AL03006-58.2K-97-G1 (4.7k pullup)
// 10 is 100k RS thermistor 198-961 (4.7k pullup)
//
//    1k ohm pullup tables - This is not normal, you would have to have changed out your 4.7k for 1k 
//                          (but gives greater accuracy and more stable PID)
// 51 is 100k thermistor - EPCOS (1k pullup)
// 52 is 200k thermistor - ATC Semitec 204GT-2 (1k pullup)
// 55 is 100k thermistor - ATC Semitec 104GT-2 (Used in ParCan) (1k pullup)

#define TEMP_SENSOR_0 0
#define TEMP_SENSOR_1 0
#define TEMP_SENSOR_2 0
#define TEMP_SENSOR_BED 0



Any Ideas?

Edited 2 time(s). Last edit at 03/19/2013 07:30AM by pastlifeuknow.
Ok so the motor is 3v. the coolmax V-500 power supply is giving it 12v 17amp. if I used the 5v 22amp or the 5v 2.5amp would it work? could this possibly be my problem?
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