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  #391  
Old Wed 17 December 2008, 21:16
jhiggins7
Just call me: John #26
 
Hebron, Ohio
United States of America
Greg,

Beautiful work!

Question. How do you hold the piece down when you've routed one side and flip it over to route the other side?

Regards,
John
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  #392  
Old Wed 17 December 2008, 22:18
Gerald D
Just call me: Gerald (retired)
 
Cape Town
South Africa
Those are darn nice!

Quote:
Originally Posted by Greg J View Post
I'm calling them jewelry dishes. The ladies put their jewelry on them at night before they go to bed.
I would have called them nut dishes . . . . . but then I hear you have to put your nuts on them before you go to bed
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  #393  
Old Thu 18 December 2008, 00:11
isladelobos
Just call me: Ros
 
Canary Islands
Spain
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hello greg, nice work.

which method is to focus unequal sides?

Example in equal sides: http://www.youtube.com/watch?v=0qmZMq8bbn4

Last edited by isladelobos; Thu 18 December 2008 at 00:31..
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  #394  
Old Thu 18 December 2008, 00:14
sailfl
Just call me: Nils #12
 
Winter Park, FL
United States of America
Greg,

Those are very nice. The women getting them will enjoy.
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  #395  
Old Thu 18 December 2008, 06:23
Greg J
Just call me: Greg #13
 
Hagerman, New Mexico
United States of America
Quote:
Originally Posted by Gerald D View Post
I would have called them nut dishes . . . . . but then I hear you have to put your nuts on them before you go to bed
I've got some important meetings today. If people notice me chuckling for no apparent reason, it's all your fault.
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  #396  
Old Thu 18 December 2008, 06:26
Greg J
Just call me: Greg #13
 
Hagerman, New Mexico
United States of America
Quote:
Originally Posted by jhiggins7 View Post
Greg,

Beautiful work!

Question. How do you hold the piece down when you've routed one side and flip it over to route the other side?

Regards,
John
I was using screws in the "waste" areas. But, the last one's were just held in place with scrap material screwed down. Nothing holding in the Z axis. Had no problems.
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  #397  
Old Thu 18 December 2008, 06:27
Greg J
Just call me: Greg #13
 
Hagerman, New Mexico
United States of America
Quote:
Originally Posted by isladelobos View Post
hello greg, nice work.

which method is to focus unequal sides?

Example in equal sides: http://www.youtube.com/watch?v=0qmZMq8bbn4

Ros,

I'm running late and the process is a little tricky. I'll respond in detail tonight.
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  #398  
Old Thu 18 December 2008, 06:50
Gerald D
Just call me: Gerald (retired)
 
Cape Town
South Africa
To "focus unequal sides" is maybe what we would call register or registration. Printing registration. Our method is similar to the pin-hole method in that link . . . .

In your cutting program, you sink a 6mm [1/4"] cutter right through the border scrap all the way into the table top. Then you put dowels through those holes. Flip over and go back to the known dowel holes.
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  #399  
Old Thu 18 December 2008, 18:06
Greg J
Just call me: Greg #13
 
Hagerman, New Mexico
United States of America
I used Vectric's Cut3D to produce those parts.

The most critical issue was to have the Y dimension of the base material exact in Cut3D (the model). The top is machined first, then flip the part over (around the Y axis) and machine the bottom.

If the Y dimension of the Cut3D model is not exact (+ or - .001") with the actual material, then the top and bottom will not match. I do not have a set of calipers large enough to measure the actual material after ripping on the table saw. The table saw is set at 7.75", but it measures 7.788".

But, I do have a large set of calipers. The MechMate I fastened the base material to the MM table and zeroed (refall) all axis's. I just measured the Y dimension to within .001".

I know that was quick, but if anyone needs further details, just ask.
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  #400  
Old Fri 19 December 2008, 21:17
gmessler
Just call me: Greg #15
 
Chicago IL
United States of America
Beautiful work Greg!
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  #401  
Old Sun 09 August 2009, 09:05
Greg J
Just call me: Greg #13
 
Hagerman, New Mexico
United States of America
3D Elk in MDF

I wasn't going to post this, but, I've been derelict in my duties recently when it comes to posting pictures.

Below is a Youtube link of a 3D Elk cut in MDF. Feedrate = 300 ipm. The rough cut was done with a 1/2" dia. End Mill. The finish cut is with 1/8" tapered ball nose bit.

I'll make one from Walnut today and post in the show room when done.

Amazing cut quality. Gerald, you should change the "introduction" page. It says the MM is good for everyday cutting of plywood (or something like that). This machine is much more. Wait till you see the doors I'm going to make.

http://www.youtube.com/watch?v=VnCZ1HwYv_Q
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  #402  
Old Sun 09 August 2009, 09:29
sailfl
Just call me: Nils #12
 
Winter Park, FL
United States of America
Greg J

That is looking very good. That is a large 1/8 tapered ball nose. Could you provide more details on the bit such as manufacturer and model #.

Nice video looks like HD.

The MDF version looks fantastic. Please post the walnut before you finish it.
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  #403  
Old Sun 09 August 2009, 09:46
Gerald D
Just call me: Gerald (retired)
 
Cape Town
South Africa
At last! Someone has done a decent video!

Greg, that is brilliant stuff. You have got the machine flying very nicely for the 3D stuff. (The front page stays as is - it is for the average Joe. But, in the right hands, it will blow your socks off. )
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  #404  
Old Sun 09 August 2009, 10:55
smreish
Just call me: Sean - #5, 28, 58 and others
 
Orlando, Florida
United States of America
...ahh the wonders of 3D cutting.
Greg,
Would you mind telling me what you have your Mach3 settings are?
Most importantly, the CV and arc settings.
I can't get my machine to move that quick on the z transitions....you must be doing something right!
Sean
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  #405  
Old Sun 09 August 2009, 13:16
Greg J
Just call me: Greg #13
 
Hagerman, New Mexico
United States of America
Thanks Guys.

I was impressed with the motion also. I know the MM can handle higher feedrates for 3D work, but I've been having too much fun making stuff, and no time to experiment. When I start making doors, the cut times will be in the 8 hour (or longer) time frame and will force me to optimize (speed things up). Stay tuned.

The Z travel was slower than the X travel so it might be a Cut3D (Vectric product) attribute. I didn't see any obvious setting in Cut 3D that might affect that. I'm happy with Cut3D, but I may purchase RhinoCAM to experiment more. Still have homework to do.

The Mach settings should be the defaults. I'm not that smart to start changing things. But here's what I've got in the General Settings,

Motion Mode - Constant Velocity
Distance Mode - Absolute
Angular Properties - A-Axis is Angular
CV Control - No Box is checked

In the motor tuning settings,

Velocity - 300 ipm
Accel - 15 in/sec/sec

The cutting bit is an Onsrud 77-102. Expensive, but they are the best and I couldn't find any other with the dimensions required. Those bits have a 1 degree angle and 1 1/2" CL.

I'll post a picture of the Walnut before finishing. Anything for the MM men
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  #406  
Old Sun 09 August 2009, 17:35
myozman
Just call me: Mike #16
 
Demotte,IN
United States of America
Greg,

Looks great. What size is it? How long did the finishing tool take? What kind of stepover did you use, 10%?

I love doing 3d with my MM.

Mike
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  #407  
Old Sun 09 August 2009, 18:53
domino11
Just call me: Heath
 
Cornwall, Ontario
Canada
Greg,
That is pretty awesome. Cant wait to see it in a fine wood.
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  #408  
Old Sun 09 August 2009, 20:21
Greg J
Just call me: Greg #13
 
Hagerman, New Mexico
United States of America
Below is the youtube link of the 3D Elk in Walnut.

I used a 3% stepover, so it took forever. I'll optimize stepover during the week. I did optimize the feedrate for the best finish. With the Milwaukee at it's highest setting (20K rpm, ?, I forget), the feedrate was best at 66 ipm. A faster FR showed a slight vibration and probably is OK, BUT 66 ipm is perfect requiring zero sanding.

Mike - the size is 10 inch X 10 inch. I agree, 3D work on the MM makes for a nice Sunday evening. Along with a New Mexico sunset and cold beer.

http://www.youtube.com/watch?v=wOywV3wF0Xw
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  #409  
Old Sun 09 August 2009, 23:13
hennie
Just call me: Hennie #23
 
Roodepoort JHB
South Africa
Nice Greg,I would like to see the doors.
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  #410  
Old Mon 10 August 2009, 03:26
Alan_c
Just call me: Alan (#11)
 
Cape Town (Western Cape)
South Africa
Send a message via Skype™ to Alan_c
Greg

For those of us in the backwoods with VERY SLOOOW internet connection, could you post some pics to appreciate, thanks
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  #411  
Old Mon 10 August 2009, 03:46
Gerald D
Just call me: Gerald (retired)
 
Cape Town
South Africa
This is what we are seeing:

Clipboard01.gif
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  #412  
Old Mon 10 August 2009, 05:15
isladelobos
Just call me: Ros
 
Canary Islands
Spain
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This is my download speed from youtube.


velocidad.jpg

Last edited by isladelobos; Mon 10 August 2009 at 05:31..
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  #413  
Old Mon 10 August 2009, 05:46
sailfl
Just call me: Nils #12
 
Winter Park, FL
United States of America
Greg J.

Fantastic cutting and I like the texture you added.

What kind of camera are you using?

Are those circles registration pin holes?

Tells us more.
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  #414  
Old Mon 10 August 2009, 06:40
Greg J
Just call me: Greg #13
 
Hagerman, New Mexico
United States of America
Morning Nils,

I'm using one of those flip video cameras. Google/bing "flip video".

The holes are just where I screwed the walnut down. A 1/2" end mill goes thru screws like butter. So I've been told

The 3D model is a Vectric product and I modified it with Rhino. The G Code was generated with Cut3D (Vectric product).
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  #415  
Old Mon 10 August 2009, 06:50
smreish
Just call me: Sean - #5, 28, 58 and others
 
Orlando, Florida
United States of America
Greg,
I have say - great work.
The flip - for those who don't own one - is the best, solid state shop video camera you can own. Simple. Quick. Cheap!

I highly recommend this for anyone who needs a dirty environment video camera under 150 dollars.
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  #416  
Old Sat 05 September 2009, 20:28
Greg J
Just call me: Greg #13
 
Hagerman, New Mexico
United States of America
Mr. Richards,

BYU 14, OU 13

Nice win and great game. Congrats.
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