Issues issues issues

[veaceonee]

To start off, hello all.

I bought a Pro B secondhand...broken. I reassembled the printer, added Lead screws, an E3dv6Lite and an auto bed level proximity sensor. The board it came with was fried so I got a GT2560 A+ as a replacement with brand new DRV8825 Drivers. Flashed with Marlin 1.1.4.

It kinda sort of not really is working right now. Here are my main issues.

1.) When I home Z, it stops 23mm above the build plate (8mm sensing distance on the sensor). If I put in a Z offset it then crashes to the bed, there is no in between.

2.) When I tell it to go 200 x and 200 y, which should put it in the opposite corner it goes to the center of the bed, never beyond center.

Im sure there are more, but I cannot think of them right now.

The prox sensor is powered off the 5v port on the board, works great on my other printer with 5v (Folgertech FT5).

thanks in advance for any help.

[Gingko]

Hi,
1, How much you set the Z offset? Have you tried to relevel the bed?
2, Maybe the bed size definition in firmware should be changed,

Code: Select all

   // Travel limits after homing
#define X_MAX_POS 210
#define X_MIN_POS 0
#define Y_MAX_POS 210
#define Y_MIN_POS 0
#define Z_MAX_POS 180
#define Z_MIN_POS 0

#define X_MAX_LENGTH (X_MAX_POS - X_MIN_POS)
#define Y_MAX_LENGTH (Y_MAX_POS - Y_MIN_POS)
#define Z_MAX_LENGTH (Z_MAX_POS - Z_MIN_POS)

refer to:
https://reprap.org/wiki/Configuring_Mar ... Dimensions
viewtopic.php?f=20&p=27819#p27819