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Author Topic: Exact Location of Objects on 3 Axis Workbench  (Read 166 times)
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« on: March 09, 2020, 05:54:28 PM »

I wish to superimpo se a large spur gear over a (slightly) smaller planetary gear so I can create a ring with teeth inside and out.

Consequen tly, on the 3 Axis Work bench I need these two gears to be precisely concentri c before generatin g the G-code using AutoCut. (I'll later edit out the bits of G-Code I don't want, for example the planetary external ring).

Is there any way to specify the centre point of a gear on the Workbench?  I can move them with the mouse but can't get their centres exactly on say 0,0 even when I zoom in very close.

I appreciat e this is a rather special requireme nt as exact placement of object within the stock piece is probably not often necessary but if it were possible it would be useful for me.

Thanks, really enjoying being creative with gears.

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« Reply #1 on: March 10, 2020, 09:56:09 AM »

Hi David:

  One solution, depending on complexit y , is to export the gears into Vexx. Once imported there
its easy to select small areas and edit them , subtract areas or do intersect ion work. Vexx doesnt
have much for Gcode output though, its primarily for simply contour cutting, but it does allow
GCode output of the objects once you group them. While you dont have tool selection code
output and such, the simple contour output is flexible enough for most 2d gear cutting needs.

  Vexx would also allow you to center and move more precisely . There is an import menu item
in Vexx to directly import the gear outlines from the current project and they can be saved as
dxf's from there for other cnc generator s if Vexx's Gcode output is too simple.


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