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IslaWW wrote:You are trying to generate 2 files that do the job of one. If you have a Z setter that sets the bit that well, measure the material and cut it all with the Z ref to the Spoilboard. There is no logic to back up what you are trying to do. Pick a lane! In the long run a toolsetter that is Z ref to Spoilboard will be much more consistent and repeatable than setting Z ref to material top, as material surface is seldom as flat as a Spoilboard is surfaced.
IslaWW wrote:No
gkas wrote:So, add a first toolpath that will mill your wood to your preferred thickness. If you pick 0.75, then everything gets milled down to that dimension. You can even have your toolpath ignore areas of screws/clamps.
Dan m wrote:IslaWW wrote:No
So you don't understand why I don't want to edit my cut file every time I run the same part on a new piece of material? If wood had the same tolerance as a piece of aluminum plate then I wouldn't worry about it, but it doesn't. Example right now I have two boards both Popular, one is .80" thick the other is .77" I have a engraving tool path that has a cut depth of .03". Now do you understand what I'm talking about? In order to get the same doc I would either need to touch off the top of each board or have two cut files. I'm sure now you understand what I'm talking about and why I would want to z-0 to the top for engraving and z-0 to the machine bed to cut the part out. Or I can do it your way and on one of the pieces either air cut the engraving or go 2x the desired doc depending on what board went on first and what thickness I entered for the material.
What am I missing? If I'm wrong on any of this please let me know since I'm new to v-carve. I'm trying to understand how the file wouldn't need to be edited every time the material thickness varied.
Dan
IslaWW wrote:Dan m wrote:IslaWW wrote:No
So you don't understand why I don't want to edit my cut file every time I run the same part on a new piece of material? If wood had the same tolerance as a piece of aluminum plate then I wouldn't worry about it, but it doesn't. Example right now I have two boards both Popular, one is .80" thick the other is .77" I have a engraving tool path that has a cut depth of .03". Now do you understand what I'm talking about? In order to get the same doc I would either need to touch off the top of each board or have two cut files. I'm sure now you understand what I'm talking about and why I would want to z-0 to the top for engraving and z-0 to the machine bed to cut the part out. Or I can do it your way and on one of the pieces either air cut the engraving or go 2x the desired doc depending on what board went on first and what thickness I entered for the material.
What am I missing? If I'm wrong on any of this please let me know since I'm new to v-carve. I'm trying to understand how the file wouldn't need to be edited every time the material thickness varied.
Dan
I understand completely what you are trying to do. Cut shallow depth engraving on a varying surface height and then make sure that you do not cut into the Spoilboard. But that was not your question, which was "Do you understand why I want to pick both lanes now?" I understand your problem, I do not understand why you chose multiple zero locations to solve it.
Having done a few production runs of 100+ plaques with customer supplied materials which varied in thickness like yours and no money in the job to surface them, I used a common process that Thermwood calls "ZSHIFT". This variable addition uses a standard, generic thickness for the file. Right before the file run, actual thickness is entered as a variable, the math is done and the table zero position is shifted up or down to match that thickness for all but the last pass, which is run at the original table zero.
Almost setting your machine on fire by driving a bit into it by accident does focus you somewhat.
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