Help please

flippnswitchez

That part is in the RRF Config tool.

flippnswitchez

I dropped back down to firmware 120 and now they are showing the endstops correct

flippnswitchez

Still no luck… banging head in to the wall

Kezat

On my bot changing this line in config.g
M574 X1 Y1 Z1 S0
to
M574 X1 Y1 Z1 S1

Will cause my endstops to always be triggered until i press them. So it changing that will reverse the behavior, we know your endstops are wired correctly because pressing them on your bot will change the state, its just backwards.

You have M574 X1 Y2 Z1 S0 in your config so change it too M574 X1 Y2 Z1 S1.

flippnswitchez

Thanks for the help. It was doing something weird. When I would change the switches or direction of a motor it was doing opposite of what I expected. I swapped the x and y motors on the board and boom it worked correct…. Not sure why I had to swamp them tho... I am just happy to have it up after a week of fight lol

dc42

Firmware 1,20RC5 reports the endstop states incorrectly in DWC Machine Properties if they are set to active low. M119 reports them correctly.

BigPrinter

HI i have also had the same problem where the endstop locations are grayed out in the web config tool. I am using the duet3d wifi board with the firmware 1.21. Initially i had to change the directions of the steppers so that they would home correctly, but that created another problem of having the steppers driving the wrong way. The M574 command only tells it whether the endstop is at the high end or low end of the axis not what direction to drive to look for the endstop.
I then found the code for the homing ie the homex.g, homey.g, ect... and changed the direction that it drove to find the endpoint.

Original
G1 S1 Y1205 F1800 ; move quickly to Y axis endstop and stop there (first pass)
G1 Y-5 F6000 ; go back a few mm
G1 S1 Y1205 F360 ; move slowly to Y axis endstop once more (second

Modified
G1 S1 Y-1205 F1800 ; move quickly to Y axis endstop and stop there (first pass)
G1 Y5 F6000 ; go back a few mm
G1 S1 Y-1205 F360 ; move slowly to Y axis endstop once more (second pass)

after all that is there a reason the grayed out area is disabled?????

dc42

I think I've found a bug in the configurator. If you set the machine type to Delta, then the endstop locations are grayed out and disabled - which is sensible because the endstops are always at the high end. But if you then change the machine type back to Cartesian or CoreXY, it doesn't enable them again. I will get this fixed.

BigPrinter

Thats great works now. Thanks

MSquared

@flippnswitchez On a CoreXY swapping the motors reverses an axis. There are 8 combinations:

Motor 1	Motor 2
X Motor forward	Y Motor forward
X Motor forward	Y Motor backward
X Motor backward	Y Motor forward
X Motor backward	Y Motor backward
Y Motor forward	X Motor forward
Y Motor forward	X Motor backward
Y Motor backward	X Motor forward
Y Motor backward	X Motor backward

One of these combinations will always result in a left handed cartesian system. The other combinations will result in either a right handed cartesian system, reversed axises, or swapped axises. The exact setup you need depends on your motor location, wiring, and possibly belt routing.

For reference you ultimately want a left handed cartesian system. This is important because a right handed system will print things backwards, this isn't a problem 90% of time but is maddening 10% of the time. The correct cartesian co-ordinate system looks like this:

0_1523851005936_Cartesian System.png

Purple is the location of my end stops so they are configured for X min, Y max and in my homing files I tell the printer to "home" to back-left corner.