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I have a definition which works nicely for cutting circular pockets, but so far only as deep as one pass will allow.

My next step is to add multiple passes at increasing depths in order to cut deeper pockets.

I'm wondering what the best approach to this will be:
Recycling the existing definition?
Or trying something more fun like Hoopsnake?

Also reverse direction of cut...

Hi,
I have a project which includes a large number of discreet cutting or similar operations to perform on pieces of material.
Grasshopper calculates the cutting list and outputs it in a seemingly random sequence which has the robot jumping around all over the place.
Can I sort the list such that the cutting sequence is less random?
Perhaps in ascending X & Y coordinate values of the approach moves?

Hi Johannes,

Your solution is far more elegant than my attempt. Though obtaining a dodecahedron in one move via Weaverbird does seem a little like cheating!

I'm restarting, and following your suggested workflow.

Thanks again for your help.

Best regards,

Charles.

Hi Karl,

I just came back to messing with robotics etc after a summer break.
Your HW tutorial was instrumental in my being able to make up a definition for designing and cutting moulds for concrete corner keepers. (I've attached it just because I'm proud of my most complex definition so far!) 
Next thing is to get my tool set up...
Thanks again for your great tutorials, I think I've stolen parts of most of them for various of my efforts.

Charles.

Hi Johannes,

Thanks for the quick reply!

I don't have a problem (yet) with the retracts etc. but I have so far been unable to get the cuts - linear moves- into a list format that works. When I make up the list sequence from the start and end points of each of the four cuts for example, the cut lines stop working or turning green when selected, and the command sequence is not what I would expect...

I suspect this is something simple that I'm doing wrong?

My rotary table is a full size Fibro with Esitron plc which came off a demolition site! Only signals available for robot use are DO start, and DI ready. But very versatile programming features for sequences of moves etc.

Best regards,
Charles.

I'm trying to cut out a dodecahedron from a block of foam mounted on a rotary table using a hot wire.

Cuts sequence will be: top and one upper side, then the table will rotate 72 degrees for the second upper
cut, etc.

I have defined the dodecahedron and the cut lines are good individually, but I need to get the cuts into a list in the right order and with some DIO and wait for the table. When I try to make a list the cut lines quit working.

Any help would be most appreciated...

Thanks again Johannes,
That's got me started...

I'm working on my second script which is for cutting out panels for geodesic structures.

I need the tool (currently just the flange) orientation to change when cutting out the panels to provide beveled edges at the correct angle.

If I extend the corner lines to a 'focus' then orienting the tool tip toward that should work, but how to do it? Or should I be using one polygon as guide curve, and the other as a cut curve?

An approach using the toolpath utilities 'Orient plane' or '3pts to plane' would seem to provide a way ahead but I have so far failed to figure out how to use them...

Thanks in advance for any help.

Hi Karl,
I've watched your PRC tutorials and they've been instrumental in getting me started with understanding GH and PRC.
Very much appreciated and keep going! I'm hoping you're still intending to make one for hot wire cutting...
Charles.

Thanks for your help Johannes and Stefan.
I've now realised that just about everything was wrong in that first effort!
With a restart from scratch I now have a far better and tidier script, and it runs on the robot.
It will be tidier again if I use the radial grid component.
So many cool components waiting to be discovered in KukaPRC!

Steep learning curve for me here.

Charles. 

I've just started my first project with Grasshopper and KukaPRC and have a few questions:

1) The robot skips the last cut (outward) of the path. How can I close the path to fix this?
2} Is there a way to rotate the points on a circle circumference? For example if wanted to make the start shape regular rather than having radial lines on one side of the points.
3) What do the dotted links in grasshopper indicate?
4) My GH seems to work ok, but any comments would be appreciated!