Messages

101

Show"N"Tell ( What you have made with your CNC machine.) / Re: Gertrude Gets Some!

« on: March 11, 2010, 02:34:18 PM »

the first cut was arcfitted, and the resulting arc was drawn over a perfectly spherical shape.. IE: one arc from left to right.. the bottom path was left as a sequence of XZ,XZ,XZ,XZ etc etc then one Y movement at each end. I have never had this happen before and i think the reason is exactly that the arc travels the complete distance of the piece.. the part was pathed at 0.005 path to model tolerance but the arc fitting happened at 0.01 tolerance arc to path, so some averaging of the resulting arc occurred.

note in top pic the line is perfectly smooth over X, no stl faccetting to be observed. perfect RC.

bottom one plenty evidence of facceting but no striping.

Im interested in testing this again. I also posted a clip o it

http://www.youtube.com/watch?v=UFDtLz3vblg

102

Show"N"Tell ( What you have made with your CNC machine.) / Re: Gertrude Gets Some!

« on: March 11, 2010, 03:40:55 AM »

mirror of a post on 3dcad forum about when arcfitting will bite your ass...

well.. blow me down.. I learned something today.. arc fitting can sometimes work against you!

on low gradual surfaces the arc fitted code resulted in a VERY stripey cut, and i was waaaaaaaay dissapointed.. I had to recut anyhow as the wax came out to thin, on the next cut i forgot to ARC fit my code and the resultant cut was infinitely better.. it did show some stl facetting.. very minor tho in comparison to the distinct striping from the arcfitted code.

SAME STEPOVER, SAME TOOL, SAME STRATEGY, SAME SPEED.. only difference was the arcfitting.

ARCFITTED PATH




NON ARCFITTED PATH




Uploading a video clip to youtube now.

103

Show"N"Tell ( What you have made with your CNC machine.) / Re: Gertrude Gets Some!

« on: March 10, 2010, 04:18:20 PM »

another signet..

104

Show"N"Tell ( What you have made with your CNC machine.) / Re: Gertrude Gets Some!

« on: March 07, 2010, 09:13:27 PM »

lol.
after i did this i posted on 3dcadjewelery too and a very important bit of information came to light.. metal is heavier than wax, so only the very bottom of the remelt will be affected, so new system in place. melt once, shave bottom off, remelt again!

105

Show"N"Tell ( What you have made with your CNC machine.) / Re: Gertrude Gets Some!

« on: March 04, 2010, 01:43:10 PM »

GecFrog went directly from the setter to the client (overdue), I never saw it finished either

106

Show"N"Tell ( What you have made with your CNC machine.) / Re: Gertrude Gets Some!

« on: March 04, 2010, 04:55:01 AM »

So you finish a cut, super fine job, and admire your almost non existent supports... (as an idea of scale the hole in the settings is 5.2mm and the surrounding prongs are only 0.3mm each)



You check it from all angles...



And life is good..

THEN.. you turn the wax around and find this!

Metal shavings from my lathe got into the remelt!!!  (hoping its AL)



NOT GOOD! Cutters no likey metal metal.. dey go breaky breaky.. I got lucky this time..

time to inspect the rest of my remelt stock..

107

Show"N"Tell ( What you have made with your CNC machine.) / Re: Gertrude Gets Some!

« on: February 25, 2010, 11:12:06 PM »

108

Tangent Corner / Re: making a snail...

« on: February 25, 2010, 02:09:37 PM »

hehehe tweakie.. these things jsut cme to me.. im blessed like that..

Rich, that function is built into matrix. I actually have no idea how to make a snail but google prevailed

109

Tangent Corner / making a snail...

« on: February 25, 2010, 05:01:37 AM »

this came up on another forum.. the technical detail on making a snail..

after my first solution was not acceptable...



i then supplied following advice

ok. i have been thinking about this. and im ready to tell you the secret of how to make a snail....

first.. the daddy snail goes out trolling the pubs and hooks up with a cute little shedevil snail.. they hang around
together and are groovy happening couple.. then one day the mommy snail tells the daddy snail that she forgot to take her birth control and the daddy snail had best sell his Harley and buy a family wagon..

The daddy snail works two jobs and has no friends left by the time the miracle of birth produces the baby snail... the mommy snails body gets shot to hell and her sex drive becomes non existent...

And basically thats it.. A snail is made.

(I tried to explain the fertilization ritual as well but its too complex.. here is a pic instead)

110

Show"N"Tell ( What you have made with your CNC machine.) / Re: Gertrude Gets Some!

« on: February 20, 2010, 08:04:43 AM »

lol ya its gecfrog!