swapping ganged z for ganged y axis

[Bazmundi]

VEVOR had a sale and I jumped on a 5.5W 12"x11" laser cutter, to scavange it and repurpose it as a solder paste "robot" (mostly for the challenge, DON'T JUDGE ME 😊 ). Don't get exited, the sale is over but it was %60 off, so worth the hoot I thought.

I have a BTT SKR PICO 1.0 (on sale %70 off 😀 ) and looking at how to hack gbrl HAL to do what I want.

I am adding a single z axis to the rig, and using a spindle on/off to turn on a pneumatic syringe.

The PICO is a ganged z axis? But the VEVOR laser cutter is actually a ganged y axis (or will be in the targeted setup).

I am therefore assuming I need "lie" in btt_skr_pico_10_map.h, by swapping y and z pins? Straight forward.

Assuming that, then is there a means to pull that into the web build tool? Or (an I am getting that sinking feeling) I have to build it with the tool chain?

If it helps, I am setting up MSCode with the RPI PICO SDK etc. Have found grblHAL/RP2040#82 (though that may be dated). In the process of trying to set up for a build. Wish me luck 😉.

Has anyone tested the BTT SKR PICO build on the web builder at least please?

[terjeio]

Ganged (or auto squared) Y-axis can be selected in the Web Builder - by the Y-axis drop down.

[Bazmundi]

Yes, but the point was the mismatch between the board (z ganged) and the lazer cutter (y ganged). So, it will need hacking of the HAL code. At the moment, I am seeing a fail to install the Pico SDK into MS Code, so I am still working on a build.

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On Thu, Aug 22, 2024 at 11:16 PM Terje Io ***@***.***> wrote: Ganged (or auto squared) Y-axis can be selected in the Web Builder - by the *Y-axis* drop down. — Reply to this email directly, view it on GitHub <#572 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AANQYKZ6CAJ3IFVBBDMEQJLZSXTR5AVCNFSM6AAAAABM57UGMGVHI2DSMVQWIX3LMV43URDJONRXK43TNFXW4Q3PNVWWK3TUHMYTANBRHE3DSNA> . You are receiving this because you authored the thread.Message ID: ***@***.***>

[terjeio]

I do not understand the need for hacking...
If the laser cutter has the motors wired incorrectly it would be simpler to just swap the motors by plugging Z into Z and Y2 into the E0 socket?

[Bazmundi]

They are not wired incorrectly, there are 2 motors driving what would be the y axis on a 3D printer. You otherwise have to swap all y and z commands in your g-code if you take your position. Gotta script for that? I am adding a z-axis and driving a pneumatic pump to push solder past through a syringe. The pump would be through an ON/OFF spindle option.

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On Sat, Aug 24, 2024 at 5:29 PM Terje Io ***@***.***> wrote: I do not understand the need for hacking... If the laser cutter has the motors wired incorrectly it would be simpler to just swap the motors by plugging Z into Z and Y2 into the E0 socket? — Reply to this email directly, view it on GitHub <#572 (reply in thread)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AANQYK5JYC5QKMAF4QX2UTLZTA4PNAVCNFSM6AAAAABM57UGMGVHI2DSMVQWIX3LMV43URDJONRXK43TNFXW4Q3PNVWWK3TUHMYTANBTGY2DSOA> . You are receiving this because you authored the thread.Message ID: ***@***.***>

[Bazmundi]

Yep, easier if I can get the environment setup 😃, still bumbling through that. Thanks for the ideas though. If I give up on trying to get the build working, hacking up a cable looks like an option.

[terjeio]

If your setup is XYYZ then you can use the Web Builder, the second Y motor is then assigned to E...

[Bazmundi]

Ah ha! That was what I was not getting. So is that just by setting to 4 axis? And Spindle 1 to ON/OFF and I am done!

Or is it 3 axis and Y made Ganged or Auto-Squared? You suggested earlier it my be either, but which would you recommend? I'll try ganged and see how that goes. That still drives E right? Just no fancy alignment correction. That should do for a solder paste dispenser I think.

Thanks very much for making that clearer! I am trying to do a crash course on all of this.

[terjeio]

Or is it 3 axis and Y made Ganged or Auto-Squared? Y

This.

[Bazmundi]

Much appreciate your help!

I will still pour over the code to see how it works, but the webbuilder is GOLD!