More OrdBot Parts

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Will Winder
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More OrdBot Parts

Post by Will Winder » Mon Aug 06, 2012 12:51 am

I picked up a couple cheap plastic cutting boards from Walmart this week and got around to cutting parts today.

I was cutting at 1000 mm/min with the dremel set to 7-8. Here are some pictures.
ImageUploadedByTapatalk1344214229.457210.jpg
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ShapeOko #367: Dual-Y drive, Belt on outside, 1000mm Y-Axis, DW660 Spindle, Nema-23 X/Y motors.

Primary developer on Universal Gcode Sender.

Colecago
Posts: 136
Joined: Fri Jun 08, 2012 5:31 pm

Re: More OrdBot Parts

Post by Colecago » Mon Aug 06, 2012 2:10 am

Is your goal to turn your CNC into a dual purpose cnc/printer? That would be awesome.

Will Winder
Posts: 435
Joined: Fri Apr 20, 2012 2:40 pm
Location: Hudson, MA
Contact:

More OrdBot Parts

Post by Will Winder » Mon Aug 06, 2012 1:50 pm

I'm making a separate 3d printer and manufacturing some of the parts with the CNC machine.
ShapeOko #367: Dual-Y drive, Belt on outside, 1000mm Y-Axis, DW660 Spindle, Nema-23 X/Y motors.

Primary developer on Universal Gcode Sender.

Will Winder
Posts: 435
Joined: Fri Apr 20, 2012 2:40 pm
Location: Hudson, MA
Contact:

More OrdBot Parts

Post by Will Winder » Thu Aug 30, 2012 11:36 pm

Here is the first of two idler plates. This is the first time I've successfully milled aluminum. A dremel worked fine using a 1/8" bit, but immediately broke a 1mm bit.

My current upgrades are dual-y motors and moving the belts to the outside, my guess is only the dual-y is required for milling aluminum.
ImageUploadedByTapatalk1346369806.667081.jpg
ImageUploadedByTapatalk1346369806.667081.jpg (166.26 KiB) Viewed 3736 times
ShapeOko #367: Dual-Y drive, Belt on outside, 1000mm Y-Axis, DW660 Spindle, Nema-23 X/Y motors.

Primary developer on Universal Gcode Sender.

Karl
Posts: 75
Joined: Tue Apr 17, 2012 4:01 am

Re: More OrdBot Parts

Post by Karl » Fri Aug 31, 2012 1:10 am

Nice!

What was the depth and speed when milling with 1/8" bit? Did you use any fluid?
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ShapeOko #313

Will Winder
Posts: 435
Joined: Fri Apr 20, 2012 2:40 pm
Location: Hudson, MA
Contact:

Re: More OrdBot Parts

Post by Will Winder » Fri Aug 31, 2012 12:29 pm

Feed was 300mm/min, depth increment 0.4, no cutting fluid.

The job took about 5 minutes and when it finished the bit wasn't even warm.
ShapeOko #367: Dual-Y drive, Belt on outside, 1000mm Y-Axis, DW660 Spindle, Nema-23 X/Y motors.

Primary developer on Universal Gcode Sender.

Karl
Posts: 75
Joined: Tue Apr 17, 2012 4:01 am

Re: More OrdBot Parts

Post by Karl » Fri Aug 31, 2012 4:11 pm

Thanks.

What kind of bit? Flutes etc..
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Tom Smith
Posts: 297
Joined: Mon Apr 09, 2012 9:55 pm
Location: North Vancouver, British Columbia

Re: More OrdBot Parts

Post by Tom Smith » Fri Aug 31, 2012 4:28 pm

Pretty slick, Will!

I think I need to re-evaluate my cutting speed/approach. I get more of a melting effect, it seems, than the blizzard of chips that I see in your plastic cutting images above - I am feeding at 800mm/min, and my old craftsman rotary tool speed is maxxed out. I think I read that too slow a speed causes the melting, perhaps this old tool just can't hack it? I am using a 2 flute ballnose, maybe that is the problem...what kind of bit are you using for these cuts?

I am also getting oval shaped circles due to flex from the left side of the gantry (and perhaps the spindle mount), I need to finish my driveshaft asap. Really interested in milling aluminum at some point!

Thanks,

Tom.
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Will Winder
Posts: 435
Joined: Fri Apr 20, 2012 2:40 pm
Location: Hudson, MA
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Re: More OrdBot Parts

Post by Will Winder » Fri Aug 31, 2012 4:51 pm

I'm using this bit for the aluminum:
http://www.ebay.com/itm/1-8-1250-2-FLUT ... 58958aa037

I'm not sure what I was using for the plastic, I must have gotten lucky with those settings since the blizzard is how it came out on the first try.
ShapeOko #367: Dual-Y drive, Belt on outside, 1000mm Y-Axis, DW660 Spindle, Nema-23 X/Y motors.

Primary developer on Universal Gcode Sender.

Will Winder
Posts: 435
Joined: Fri Apr 20, 2012 2:40 pm
Location: Hudson, MA
Contact:

More OrdBot Parts

Post by Will Winder » Sat Sep 01, 2012 1:46 am

I made a couple more parts today, this is the only one that needed modifications. The original was designed for nema 14/17's and I have 2 extra 23's.

Both of these failed half way through. For some reason Grbl reset, I'm not sure why. Fortunately it was after the outer profile had been defined so I finished cutting it out with my stationary jigsaw.
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ImageUploadedByTapatalk1346464001.552054.jpg (172.29 KiB) Viewed 3647 times
ShapeOko #367: Dual-Y drive, Belt on outside, 1000mm Y-Axis, DW660 Spindle, Nema-23 X/Y motors.

Primary developer on Universal Gcode Sender.

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