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Author Topic: Re: CamBam Wrapper Help  (Read 2503 times)
Acs
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« on: August 04, 2018, 09:37:58 am »

Hello can someone tell me what I am doing wrong. I did my profile for a cylinder 2.5 inch diameter and 3.925 inch wide. all the profiles are to the correct distance when laid out in the rectangular shape. when i convert using the g code wrapper and machine the part my distances are all off. I am using a .25 inch end mill.
one of my concern is that I may not have the 2.5 * 3.925 template setup correctly.

* sample87.cb (26.77 KB - downloaded 24 times.)
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lloydsp
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« Reply #1 on: August 04, 2018, 11:35:50 am »

For one thing, the circumference of a 2.5" diameter cylinder is 7.85398", not 7.54".  (pi * D)

Lloyd
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Acs
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« Reply #2 on: August 04, 2018, 14:59:19 pm »

my typo, diameter is 2.4 giving 7.54, i rerun the program again with same result. distances been far off.
can you look at the file attached and see if you can find out what i am doing wrong.
Thanks
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Bubba
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« Reply #3 on: August 04, 2018, 15:03:33 pm »

It would be good to simulate before you cut it. I don't have such program so I use wood and cut it. Did run your sample and it looks good on the screen. But, like Lloyd mentioned the circumference of a 2.5" diameter cylinder off and it will affect the end result.


* Capture.JPG (48.36 KB, 1070x524 - viewed 44 times.)
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EddyCurrent
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« Reply #4 on: August 04, 2018, 15:03:46 pm »

Please attach a screenshot of the wrapper plugin form so we can see what values are in each box
« Last Edit: August 05, 2018, 07:49:06 am by EddyCurrent » Logged
Acs
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« Reply #5 on: August 04, 2018, 15:23:02 pm »

screen shot attached. it is a 2.4 diameter.

is there a procedure on how to simulate my file


* wrapper.png (146.84 KB, 1366x768 - viewed 49 times.)
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Bubba
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« Reply #6 on: August 04, 2018, 16:28:07 pm »

I don't understand why you have the " Set the Z-Base" setting other than '0'.
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Acs
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« Reply #7 on: August 04, 2018, 17:01:24 pm »

I was told to set the Z- base to 1/2 of the diameter which is 1.2. Then set the end mill height to Z0 during the setup
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EddyCurrent
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« Reply #8 on: August 04, 2018, 17:51:20 pm »

There is a more recent version of the Wrapper plugin here; http://www.atelier-des-fougeres.fr/Cambam/Aide/Plugins/Wrapper_plugin.html
and be sure to download the latest documentation from the same location.


"Z-Base : the base Z height in the X,Y,Z model. This is the Z value that is mapped to the wrapped
diameter."

As Bubba mentioned, set Z-Base to 0 and try again.
« Last Edit: August 05, 2018, 07:49:19 am by EddyCurrent » Logged
Acs
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« Reply #9 on: August 04, 2018, 17:55:27 pm »

Thanks. Will download and try
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dh42
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« Reply #10 on: August 04, 2018, 21:51:26 pm »

Hello

Yes, if you're working with stock surface = 0 in your mop, BaseZ must be 0 in the plugin (your case)

If you're working with stock surface = the radius of the part, BaseZ must be = the radius too (in this case, you're working with Z0 at the rotation center)

Quote
I was told to set the Z- base to 1/2 of the diameter which is 1.2. Then set the end mill height to Z0 during the setup

Yes, but only if you're working with Z0 at the rotation center, it's not the case in your drawing.

++
David
« Last Edit: August 04, 2018, 21:53:24 pm by dh42 » Logged
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