How to invert Z dir button on host

Hello all,
I am working on a moving Z plane printer, much like Makerbot or Ultimaker setup.
I have no problem with Repetier Host + FW, everything is working OK, I just would like to reverse the action of + and - Z buttons to match the real thing, so when I hit the "up" button, the bed will go up.

Z bed is at zero when all up (against extruder), and at 200 when all down.

Is anything I can do to swap the Z button functions ?

Best Regards
Davide Ardizzoia

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no toys here...sorry

Really nothing to do ?
Or I am sooooooo desperately dumb not to see an obvious solution ?

:-)
Davide Ardizzoia

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no toys here...sorry

Configuration.h in your firmware.

There's a line in there to invert the direction of each Axis.

Edited 1 time(s). Last edit at 05/09/2013 08:58AM by ShadowRam.

Simple answer, No it is not possible.

Long answer: Get the sources and change the button codes to invert the sign and compile your version. Sorry, no easy solution at the moment.

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ShadowRam Wrote:
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> Configuration.h in your firmware.
>
> There's a line in there to invert the direction of
> each Axis.

Won't do it.
My homing switch is at Zmax position.
Now when Z=0 bed touches extruder.
If I invert, Z=0 will be at Zmax.....


Host sources: could be a solution , but will take me a lot of time to dig into source and compile my own solution. Will put this into "thing to do into a rainy day" drawer.

Thank you,
Davide

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no toys here...sorry

If I get sometime in the future the time, I will make it an option. Also I do not like to have too many options as they tend to confuse users, but this request is not new. Seems to disturb users, where the bed moves in z direction instead of the extruder. Also it should be easy to think move extruder relative to bed.

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Yes traditionally all jogs are of the nozzle relative to the bed. The Y axis of most Mendel type machines moves the opposite way to the button. I think it would just get more confusing if host started doing the other way.

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[www.hydraraptor.blogspot.com]

Obviously each axis is being moved from associated arrow icons.
Therefore the mental picture of moving Z is Extruder assembly on sliding-bed architectures, or the bed itself when it is a lifting-bed architecture.

Surely getting too much options can be confusing (skeinforge docet), but right now Repetier host is quite spartan about options, therefore I don't see any risk to increase complexity.

The main responsibility for this issue is due to the fact that most printers home the Z when extruder is against bed, while I have chosen to home at the opposite end (zmax).

Best Regards
Davide Ardizzoia

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no toys here...sorry