Author Topic: CamBam at Cabin Fever 2013  (Read 21236 times)

Offline mofosheee

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Re: CamBam at Cabin Fever 2013
« Reply #30 on: May 15, 2013, 20:08:28 pm »
Thank you!
P.S.  Your You Tube videos are great. 

Offline Bubba

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Re: CamBam at Cabin Fever 2013
« Reply #31 on: May 15, 2013, 21:21:00 pm »
Hello,

For this object, maybe it's more easy to do without 4th axis, by flipping the part on the table ; in this case you can add some tabs to hold the part

++
David



David, first of all. Nice demonstration.

As David said, if the 4th axis or other indexing tool is available that would be my choice. But there is nothing wrong with other method as long as the locating holes and pins are dead on. Remember the end product going to be as good as the tools used.. ;)
My 2ยข

Win11, CB(1.0)rc 1(64 bit) Mach3, ESS, G540, 4th Axis, Endurance Laser.

Offline dh42

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Re: CamBam at Cabin Fever 2013
« Reply #32 on: May 15, 2013, 22:13:07 pm »
Hello,

Thanks  ;)

In fact, I think that for this part, it's better without the 4th axis, because you need to left a lot of uncut material at each end of the spoon to hold it into the jaws and the tailstock ... tiny "tabs" may be more easy to remove but can only be used with "normal" double-side method.

++
David

Offline lloydsp

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Re: CamBam at Cabin Fever 2013
« Reply #33 on: May 15, 2013, 22:34:42 pm »
If I were doing it, I'd leave it on the table after the first side was milled.
Then I'd build a dam around the piece and replace all the removed material with fixturing metal (like Cerro-Tru); finally facing it off flat on top.

THEN I'd flip it over, and not need holding tabs or any of that.

For extra holding power, tap gently to  remove the fixturing piece and glue it back on with thin cyanoacrylate... BTDT... that holds better than the natural surface adhesion of the Cerro-Tru, and is easily removed with acetone after remelting the Cerro-Tru.

Holding tabs would just mess up the look of that whole piece, and require a lot of manual 'touch' to get them cleaned up.  The Cerro-Tru is re-usable, so after the first purchase, it costs almost nothing.

LLoyd
"Pyro for Fun and Profit for More Than Fifty Years"

Offline mofosheee

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Re: CamBam at Cabin Fever 2013
« Reply #34 on: May 15, 2013, 23:06:01 pm »
I appreciate every bodies 2 cents.  Couldn't do it with out you.

xoxoxoxo

Jerry

Offline mofosheee

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Re: CamBam at Cabin Fever 2013
« Reply #35 on: May 16, 2013, 21:11:28 pm »

Hello Everybody

It was for my own knowledge that I requested assistance with the rotational aspect of this part and I would have to agree that it makes more sense to not use the rotational axis.  I gained tremendously by taking apart David's work.

For giggles I experimented by running the roughing part of the program on a piece of plastic.  I quit just before the tool bit would hit the vice.  Please don't laugh too hard at my first attempt. 

Thanks again

Jerry