Thingomatic X/Y/Z steps per mm?

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Mike

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Jan 2, 2011, 7:52:55 PM1/2/11
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Hi all. I'm rehashing the makerbot-music code, and it's nearly ready
for release. One question: can anyone point me to the file that
defines X_STEPS_PER_MM etc for a Thingomatic?
https://github.com/makerbot/ReplicatorG/tree/master/machines has the
Makerbot, RepRap, and Ultimaker settings, but I'm convinced the
Thingomatic has a different Z axis scaling due to the acme rod /
linear bearings vs Cupcake's threaded rod.

Cheers
Mike Thomson

Robert Hunt

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Jan 2, 2011, 8:11:54 PM1/2/11
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Pulled from the XML for the ToM:

<name>Thingomatic w/ Automated Build Platform</name>
<geometry type="cartesian">
<!-- different pulleys on X and Y axii -->
<axis id="x" length="106" maxfeedrate="4000" stepspermm="47.069852"
endstops="min"/> <!-- Pulley dia: 10.82mm / 1/8 step = 1/(10.82 *
pi / 1600) -->
<axis id="y" length="120" maxfeedrate="4000" stepspermm="47.069852"
endstops="min"/> <!-- Pulley dia: 10.82mm / 1/8 step = 1/(10.82 *
pi / 1600) -->
<axis id="z" length="106" maxfeedrate="1000" stepspermm="200"
endstops="max"/> <!-- TR-8x8 Z axis = 1/(8/1600) -->
</geometry>

Hope this helps!

-Rob

On Jan 3, 12:52 am, Mike <micht...@gmail.com> wrote:
> Hi all. I'm rehashing the makerbot-music code, and it's nearly ready
> for release. One question: can anyone point me to the file that
> defines X_STEPS_PER_MM etc for a Thingomatic?https://github.com/makerbot/ReplicatorG/tree/master/machineshas the

Mike

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Jan 2, 2011, 8:28:54 PM1/2/11
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Thanks Robert!
Just what I needed. Where should I have been looking?
Cheers
Mike

Robert Hunt

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Jan 2, 2011, 9:36:35 PM1/2/11
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It was further down in the MakerBot machine XML - the same file you
linked to on GitHub.

Linkreincarnate

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Jan 3, 2011, 1:40:14 AM1/3/11
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Yay I've been wanting to play the imperial march on my thingomatic...

Mike

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Jan 3, 2011, 4:23:41 AM1/3/11
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D'oh! I feel so dumb now...
I guess at nearly 1 am my brain refused to believe the Makerbot file
had anything but Cupcakes in it.
Thanks again Robert.
Mike

Mike

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Jan 3, 2011, 4:25:16 AM1/3/11
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It's *very* nearly complete, and I'd appreciate testing by those with
other machines.
If anyone is interested in giving it a go, reply to this and I'll send
you the Python script
Cheers
Mike

Robert Hunt

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Jan 3, 2011, 7:48:08 AM1/3/11
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The current version of the Imperial March gcode on the wiki does work
with the Thing-O-Matic, it just uses the Z axis I think.

Mike - I'd be interested in giving it a test.

-Rob

Mike

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Jan 3, 2011, 7:38:50 PM1/3/11
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...then you may enjoy a visit to https://github.com/michthom/MIDI-to-CNC

Let me know what you think.
Mike
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