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Post by gene35146 on May 26, 2017 16:26:48 GMT -5
I am doing my first 3D little sign and did the ruff pass but not sure where to do the bit height for the finish tool? To be specific where to I put the puck to do the touch off? Attachments:
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Post by stevem on May 26, 2017 21:39:38 GMT -5
If you don't have the space on the actual work piece to place the puck, just take another piece of wood the same thickness and put anywhere you want and set you're Z-0 on that. When you start the cut, the spindle will move back to the start position by itself.
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Post by gene35146 on May 26, 2017 21:47:28 GMT -5
I had space to do that but when I set the puck to the left of the work it just never did anything but move back and forth which leads me to believe it is too high. I was think I just need to get to the top of the highest part of the rough work and set it there?
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Post by gene35146 on May 26, 2017 21:58:05 GMT -5
Well that doesnt work just drilled a hole in the board. Not sure where to go now.
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Post by gene35146 on May 26, 2017 22:02:11 GMT -5
Duh I had a 1/4 ball nose in the tool and the tool path had a 1/8 inch. That fixed it.
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Post by stevem on May 27, 2017 8:31:05 GMT -5
It's always something simple. Mostly just remembering the proper way to procedure ant steps.
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Post by Deleted on May 27, 2017 10:11:54 GMT -5
Duh I had a 1/4 ball nose in the tool and the tool path had a 1/8 inch. That fixed it. If you have VCarve Pro or Aspire you can save a Job Sheet which is an HTML document that shows the layout of your workpiece and gives all the details about the bits and tool paths. I find this quite useful to check before each bit change and running the tool path. Attachments:round stop_Summary.html (85.33 KB)
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Post by traindriver on May 31, 2017 19:43:39 GMT -5
When I do 3d carving like this, I always set the Z = 0 point on the bottom surface in VCarve Pro. That way, my zero is the top of the spoil board and when I machine off the top surface with my rough cut, I still have a good reference point for touching off my finishing tool.
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Post by Deleted on May 31, 2017 22:50:26 GMT -5
When I do 3d carving like this, I always set the Z = 0 point on the bottom surface in VCarve Pro. That way, my zero is the top of the spoil board and when I machine off the top surface with my rough cut, I still have a good reference point for touching off my finishing tool. That's a good point but let me elaborate for those that didn't get the full value of your comment. It's a good idea to find a spot that will not change because of any milling throughout the whole project so that you can touch off all your tools in that same location. This ensures that any slight height variance over your machine's full XY work area will be ignored. Ideally, your project takes into account any Z distortion but not by adjusting the tool height. A good way to do this is by periodically flattening of your spoilboard as that will also take into account dynamic changes in your machine's XYZ motions. |
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Post by gene35146 on Jun 1, 2017 20:09:50 GMT -5
Duh!
So just resurface your spoilerboard before a big project and set zero to the top of the spoiler board and that is the bottom of the material then it doesn't matter! Duh! Sometimes the obvious is so simply good tip!
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Post by Deleted on Jun 2, 2017 10:17:09 GMT -5
Duh! So just resurface your spoilerboard before a big project and set zero to the top of the spoiler board and that is the bottom of the material then it doesn't matter! Duh! Sometimes the obvious is so simply good tip! You still want to zero at the same spot for all tools because even though you "flattened" your spoilboard it doesn't mean that it's actually flat, just that that surface is the same distance from the bit as the machine moves. Thus, flattening takes into account any distortions in the machine's motion as it moves through an idealized plane. |
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