Ramps 1.4 and PIN D9 March 26, 2018 06:41PM |
Registered: 9 years ago Posts: 144 |
Re: Ramps 1.4 and PIN D9 March 26, 2018 09:25PM |
Admin Registered: 13 years ago Posts: 7,007 |
Re: Ramps 1.4 and PIN D9 March 27, 2018 03:53AM |
Registered: 8 years ago Posts: 5,232 |
Re: Ramps 1.4 and PIN D9 March 27, 2018 05:11AM |
Registered: 9 years ago Posts: 144 |
Quote
Dust
How did you wire it in?
You have to use both pins of the D9 port and not any old gnd and the + pin. The reason is the ramps actually switches the gnd rail
so when off the + and - pins are both 12v, and no current flows
and when on the + pin is still 12v but the - pin is now gnd and power will flow.
// The following define selects which electronics board you have. // Please choose the name from boards.h that matches your setup #ifndef MOTHERBOARD #define MOTHERBOARD BOARD_RAMPS_14_EFB #endif
Re: Ramps 1.4 and PIN D9 March 27, 2018 06:29AM |
Registered: 9 years ago Posts: 144 |
Quote
o_lampe
Did you replace the polyfuses with bridges or was it sold that way?
I hope you have an inline fuse between PSU and RAMPS...playing with lasers is already dangerous, no need to risk a fire.
Re: Ramps 1.4 and PIN D9 March 27, 2018 07:09AM |
Admin Registered: 13 years ago Posts: 7,007 |
Re: Ramps 1.4 and PIN D9 March 27, 2018 11:41AM |
Registered: 8 years ago Posts: 5,232 |
Re: Ramps 1.4 and PIN D9 March 27, 2018 11:45AM |
Registered: 8 years ago Posts: 5,232 |
Re: Ramps 1.4 and PIN D9 March 27, 2018 04:32PM |
Registered: 9 years ago Posts: 144 |
Re: Ramps 1.4 and PIN D9 March 29, 2018 06:40PM |
Registered: 9 years ago Posts: 144 |
Quote
Dust
Ok, something very wrong then... It sounds like you have configured and wired it correctly.
Take a step back and install ramps test firmware [reprap.org]
No configuration is needed. It moves all motors back and forward but more importantly for you it also turns on and off all the mosfets
So the laser should flash on and off... while running this test firmware.
If the laser still doesn't turn off, you have a hardware fault, most probably a dead mosfet.
Re: Ramps 1.4 and PIN D9 October 24, 2018 10:44AM |
Registered: 5 years ago Posts: 2 |