Possible to rename Extruder stepper to Delta?

Controllers Smoothie
1

Hi,

When reading thru Laser wiki it’s explained that the motors are named Alpha, Beta, Gamma, Delta and Epsilon. However, in the example config file the M4 stepper control is named Extruder.

For me who is building a Laser cutter/engraver, the name Extruder isn’t that good and i would like to use the Delta and Epsilon names instead. - Is it possible to change this in the config file? I can’t find how the actual mapping is done so that the Smoothieboard knows how to map for example X10 to Alpha?`

Thanks

Imported from wikidot

2

Hey.

I don’t understand what you are trying to do. Why would you need anything to do with extruder, on a laser ?

Can you describe your machine, and what you want each motor to do exactly ?

Cheers

3

Thanks for quick response.

As you say, i don’t need the extruder on a laser. I require X Y and Z, and my machine has two stepper motors on the Y axis since the amp draw per motor requires me to use two stepper drivers for the y axis.

So, my setup is one stepper (one motor) driver for X axis, two for Y axis (two motors) and then one for Z axis (raise/lower bed). What i have done is to connect the pins on the PCB to make the second Y driver to a “slave” to the first one.

When looking in the config file it looks as if the stepper drivers are named Alpha, Beta and Gamma, and then they are named Extruder and not “delta”? The example config file that i have started with has the “extruder.module_name.steps_per_mm” setting.

So, basically what i mean is that the “extruder.module_name.steps_per_mm” setting along with the “delta_current” is a bit confusing. Since my setup doesn’t have an extruder, then it would be nice if the settings for the delta driver was named something with delta as it is for Alpha instead of something like “Extruder”…

I have looked thru the wiki but can’t seem to find the info on how and if i can rename them?

4

To use two drivers for a single axis, you don’t need to do anything related to extruder, just set the current for that driver, and jumper the step/dir/enable connections for the two drivers.

It’s all explained here : http://smoothieware.org/laser-cutter-guide#toc25

Cheers :slight_smile:

5

Yep. have read thru that article and connected M2 to M3 by connecting EN, ST and DIR pins. But what happens then is that the Z drive is “moved” to M4 and since i used M2 and M3 for Y (since those are next to each other).

But i think i understand your point now that M1 is X, M2 is Y and M3 is Z. So if i want to double up on Y then i can’t use M3 since its dedicated to Z and instead i need to connect the EN, ST and DIR pins from M2 to M4 which allows me to disable the whole extruder thing in the config.

Thanks!