I now own a mini CNC router and a 3D printer

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Dave_Sohlstrom
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I now own a mini CNC router and a 3D printer

Post by Dave_Sohlstrom » Tue Apr 03, 2012 5:17 pm

When Steve was routing Mona Lisa with a Dremel mounted to his printer, I wanted one. Well now I can route and print, though not at the same time. Here are some photos.


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Dave Sohlstrom

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Chris Muncy
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Re: I now own a mini CNC router and a 3D printer

Post by Chris Muncy » Tue Apr 03, 2012 5:30 pm

You're such a dawg.......

I WANT!

Do you take PayPal for payment on those parts? :p
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Dave_Sohlstrom
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Re: I now own a mini CNC router and a 3D printer

Post by Dave_Sohlstrom » Tue Apr 03, 2012 6:11 pm

It's called DYI so if you want one you'll need to build you one. You can't afford me took 2 days to build the adapter. :lol: :lol:

Here are a couple of shots of the first try. A 20mm pocket 2mm deep. Only miked out to 19.96mm

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cquinby
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Re: I now own a mini CNC router and a 3D printer

Post by cquinby » Tue Apr 03, 2012 6:29 pm

Pretty cool Dave!
__

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michaellatif
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Re: I now own a mini CNC router and a 3D printer

Post by michaellatif » Tue Apr 03, 2012 6:38 pm

That looks awesome Dave!
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Re: I now own a mini CNC router and a 3D printer

Post by mhackney » Tue Apr 03, 2012 9:19 pm

Very cool Dave. Is that a Foredam hand piece?

Cheers,
Michael

Sublime Layers - my blog on Musings and Experiments in 3D Printing Technology and Art

Start Here:
A Strategy for Successful (and Great) Prints

Strategies for Resolving Print Artifacts

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Dave_Sohlstrom
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Re: I now own a mini CNC router and a 3D printer

Post by Dave_Sohlstrom » Tue Apr 03, 2012 10:35 pm

No it is an old style Dremel flex drive.
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Re: I now own a mini CNC router and a 3D printer

Post by Geirhart » Wed Apr 04, 2012 1:07 pm

Dave,

That is very nice. Are you getting any flex when you machine harder materials?

Gary

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Dave_Sohlstrom
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Re: I now own a mini CNC router and a 3D printer

Post by Dave_Sohlstrom » Wed Apr 04, 2012 5:14 pm

I have not routed any thing other than this PVC foam board. I have more photos in the camera from today. Will UL them later.
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Re: I now own a mini CNC router and a 3D printer

Post by Dave_Sohlstrom » Wed Apr 04, 2012 7:19 pm

Here is a shot of the first real CNC router cut I have made. Pilot house sides for a model tow boat. Running a 2mm end mill at 35,000 RPN 16" per min feed rate. Took just shy of 2.5 minutes to cut. Material is 3mm PVC foam board

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Re: I now own a mini CNC router and a 3D printer

Post by Geirhart » Thu Apr 05, 2012 2:01 pm

The foam is really milling well. Are you making forms for aluminum or epoxy \ Acrylic casting?


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Dave_Sohlstrom
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Re: I now own a mini CNC router and a 3D printer

Post by Dave_Sohlstrom » Thu Apr 05, 2012 4:14 pm

When I get the heated bed up and running I will be printing molds for wax patterns used for lost wax investment casting.
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Re: I now own a mini CNC router and a 3D printer

Post by Geirhart » Thu Apr 05, 2012 5:29 pm

That sounds interesting as well are you going to be casting precious metals?


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Re: I now own a mini CNC router and a 3D printer

Post by Dave_Sohlstrom » Thu Apr 05, 2012 6:10 pm

No I will only have Alu and bronze cast to build these Zdrives for model tugs.

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Re: I now own a mini CNC router and a 3D printer

Post by Geirhart » Thu Apr 05, 2012 11:10 pm

Are those props for RC Boats?

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Dave_Sohlstrom
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Re: I now own a mini CNC router and a 3D printer

Post by Dave_Sohlstrom » Fri Apr 06, 2012 1:12 am

Yes It is a Kaplan style 73mm dia X 50mm pitch and will be installed in the Zdrive. Drive will fit in 1/24 scale boats easy and big 1/32 scale boats.
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Re: I now own a mini CNC router and a 3D printer

Post by Dave_Sohlstrom » Sat Apr 07, 2012 7:37 pm

Here are the 4 linear bearing blocks for the Z axis on the H-1 Tank. Will be cutting them apart and adding some taped holes on the edges just in case. One thing I have discovered is because of the increase in weight of the X axis and extruder I an loosing steps if I rapid up at to high a feed rate. limited to about 16 IPM.
I think that I will be designing a counter weight system so the lear screws do not have to lift all of the weight.

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Re: I now own a mini CNC router and a 3D printer

Post by Dave_Sohlstrom » Sun Apr 08, 2012 7:55 pm

Well I have the Z axis linear bearing mod complete. Before the mod when I was routing the PVC foam board the best I could get was 16" per min feed rate. The Z axis was loosing steps when it rapid up for a holding tab. After completing the mod I route one more test route. 40" per min no lost steps. the job finished in 1 minute. Here are some shots of the Z axis bearings.

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The test route.

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Re: I now own a mini CNC router and a 3D printer

Post by michaellatif » Sun Apr 08, 2012 9:15 pm

That's very cool, looks like the tank is complete.
I think I counted about 12 of the original H-1 plastic parts :-).

Nice work Dave!
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Re: I now own a mini CNC router and a 3D printer

Post by mhackney » Sun Apr 08, 2012 9:32 pm

Mike, you must be counting pairs as 1 part!

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Start Here:
A Strategy for Successful (and Great) Prints

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Dave_Sohlstrom
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Re: I now own a mini CNC router and a 3D printer

Post by Dave_Sohlstrom » Sun Apr 08, 2012 10:44 pm

16 excluding the extruder.
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Re: I now own a mini CNC router and a 3D printer

Post by Dave_Sohlstrom » Sun Apr 08, 2012 11:03 pm

My next challenge is to design and build a extruder that uses resin pellets just like Steve and Johns injection molding machines. It will have three temp zones. Cold, warm where the pellets start to soften and hot where the pellets are at extrusion temp exiting the nozzle. It will have to be all metal
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Re: I now own a mini CNC router and a 3D printer

Post by JTCUSTOMS » Mon Apr 09, 2012 12:02 am

How will you keep air out of the mix with the pellets, compress them with a screw in the middle zone?
Most injection molders I have worked on in the past (Van Dorn's and Cincinatti's) have a "shot" of plastic molten ready to inject before it gets to the nozzle.

Your Z mod looks fantastic! and I am anxiously waiting to see what you come up with for the "granule" type extruder
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michaellatif
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Re: I now own a mini CNC router and a 3D printer

Post by michaellatif » Mon Apr 09, 2012 12:35 am

Have a look at this guy's design.

http://www.kickstarter.com/projects/roc ... ment-maker

You may get some inspiration as to how you can build a pellets to printing extruder.
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Re: I now own a mini CNC router and a 3D printer

Post by Dave_Sohlstrom » Mon Apr 09, 2012 10:53 am

I think his energy should of gone to printing from pellets rather than making filament. Sure seems slow, at the rate he was getting filament out you would spend hours and hours making filament.
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