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Author Topic: Routed Teak Tiger.  (Read 23160 times)

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Offline ger21

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Re: Routed Teak Tiger.
« Reply #20 on: January 15, 2010, 10:27:46 AM »
It was roughed with a 1/4" bit, leaving about .03"-.05" for the finishing pass. Don't remember for sure. But the stepover was only .005, so it wasn't removing much material. Spindle speed was about 16,000-17,000 (according to the speed dial on the router) . I set it so it didn't make too much noise. :)

The bit was only $6 on Ebay, so not a big deal if it broke. Bought it to see if it would cut wood , and it did quite well. I need to get some more, but the seller doesn't have any more right now. It's a 2 flute with 1/4" l.o.c. I was going to try the tiger, but the chin was taller than the 1/4" cutter length. Maybe I'll try it tomorrow.
Gerry

2010 Screenset
http://www.thecncwoodworker.com/2010.html

JointCAM Dovetail and Box Joint software
http://www.g-forcecnc.com/jointcam.html
Re: Routed Teak Tiger.
« Reply #21 on: January 20, 2010, 05:32:56 PM »
Hello Tweakie

Does you program can modify the stl so it can have less polygons ,i tried to reduce the size of the tiger to 1.187 inch and both times the program said out of memory

if the file could have 30 percent less polygons i think my program could use it.

Marcel
Re: Routed Teak Tiger.
« Reply #22 on: January 21, 2010, 01:28:23 AM »
Here's one I made with Aluminum.

Jeff

Offline Tweakie.CNC

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Re: Routed Teak Tiger.
« Reply #23 on: January 21, 2010, 03:33:04 AM »
Hi Marcel,
I cannot modify the .stl. I don't even know what program was used to create the .stl it was just downloaded from the Zone.

Hi Jeff,
Absolutely brilliant, so much detail and wonderful finish.

Hi Gerry,
Thanks for the info. I think you should cut a tiger now, just to make up the set.  ;D

Tweakie.
PEACE

Offline Tweakie.CNC

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Re: Routed Teak Tiger.
« Reply #24 on: January 21, 2010, 04:07:42 AM »
Hey Jeff,

Loads of questions please....

What software did you use to create the toolpath ?
What was the depth of cut and spindle speed and feedrate ?
How long did it take ?
What size is it ?

Many thanks,

Tweakie.
PEACE
Re: Routed Teak Tiger.
« Reply #25 on: January 21, 2010, 06:04:22 AM »
Hi, thanks.

Tool path was created using Mastercam.

First tool path was with a 5/16 4 flutes end mill, If I remember, depth of cut was about .070" at 25 inches per minute, 8000 RPM. ( Pocket Island Roughing)

Second tool path was with the same 5/16 end mill to rough the tiger head itself, .04 depth of cut at 25 inches per minute (Surface Rough Pocket)

Third tool path was with a 1/4 ball nose, maybe 15000 RPM at 25 inches per minute. (Surface High Speed, Roughing Radial  at 1 degree)

Fourth tool path was with 1/8 ball nose, 18000 RPM at 50 inches per minute. (Surface High Speed,  Finish Radial  at .7 degree)

Last tool path was with a 1/16 ball nose, 24000 RPM, .005 depth of cut and 20 inches per minute. (Surface Finish Shallow)

Has been cut in a 4 X 4 X 1 block, so head is about 3 1/2 X 3 1/2 X 1 inch.

For cutting time, maybe 4 hours.

Do you know who draw this Tiger Head, it is absolutely fantastic.

Jeff






Offline Chaoticone

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Re: Routed Teak Tiger.
« Reply #26 on: January 21, 2010, 06:15:55 AM »
Marcel, could you use a larger toolpath and then use scaleing in Mach to get the size you want?

Nice Tiger too Jeff.

Brett
;D If you could see the things I have in my head, you would be laughing too. ;D

My guard dog is not what you need to worry about!

Offline Tweakie.CNC

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Re: Routed Teak Tiger.
« Reply #27 on: January 21, 2010, 06:42:27 AM »
Thanks for all the info Jeff, very much appreciated.

Tweakie.
PEACE

Offline BarryB

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Re: Routed Teak Tiger.
« Reply #28 on: January 21, 2010, 10:53:05 AM »
hee hee, love it.  You guys are all doing great work!

Barry

Offline Tweakie.CNC

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Re: Routed Teak Tiger.
« Reply #29 on: January 27, 2010, 09:19:11 AM »
Another teak tiger, this time cut across the grain and at a higher federate. Total machine time is now down to 2 hours 5 minutes. Cutting across the grain highlighted the limitations of my spindle front bearing (I know it is due for replacement) which started to resonate at times and put a limit on the maximum federate that could be achieved (800mm).

I did try using MeshCAM but was unable to create the toolpath for this tiger (the .stl file has 1.8 million surfaces) without getting the “not enough memory – try reducing the geometry” error. Not much about this point on the MC forum but it appears that there is a top limit to the specified geometry points / surfaces that MC can accommodate.
Perhaps Gerry of Jeff you could shed some light on this problem please, please.

Tweakie.
PEACE