But it's been broken up to match/sync with the other profile's direction change. Length, as it would be one straight shot. Normally the blue line ( edge of square ) would be cyan it's entire The cyan line represents the current tool path. Hard to describe, but well illustrated in the attached pic. The example g-code in LinuxCNC is well segmented, so any time there is a change in either profiles trajectory the g-code "splits" the un-changning profile and jumps to a new line. I considered outputting 2 profile mops and text editing them together ( with a search and replace for XY > UV ),īut as has been pointed out, the issue is really about the sync and speed between the 2 profiles. between 'easy concept' and 'working prototype', there's certainly a bit of work to do. It could end up being a MOp that chases one point at a time on each template, in order that they always stay exactly in sync around the forms. Speed control would be really critical or the two points followed might become 'skewed'. To follow the same number of points per minute around the polylines. I think what's required would be this:ġ) Two polylines, one describing the tip 'template' and one describing the 'root' template.Ģ) Care taken that the two shapes have the same number of points in their polylines (easy)ģ) a script that knows about your axes, and will generate profiles at different speeds for each end, in order This can be done with CamBam, but not by CamBam, alone. What you really have is two separate profile-chasing MOps working on different 'spindles' (if you will), and simultaneously.
I've done a lot of template-driven wing cutting for sailplanes, and I understand what you're doing, Craig.
I'll try to come up with more details & info. 2 XY gantries separated by a certain distance. LinuxCNC, in this configuration, expects to see explicitly U & V for the 3rd and 4th axis names.Īlso attached is an example of the mechanical set-up of the cutter, from the web.
You can see it's pretty simple, just XY & UV. The red lines indicate the wire's cut path.Ģ. The blue cone indicates the UV tool location ( or end of wire ), the green cone is the XY tool. The XY & UV ( lot's of different names for the second axis exist AB, X2Y2, etc. I'm attaching a screen grab of an example set up. But I want to be able to cut parts with more complexity, tapered wings for my RC planes in particular. I'm can currently cut a uniform shape, like an extruded part. The big thing with this set-up is the ability to cut tapered parts.
I'm really excited that CamBam may be able to work for this.
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