Looking for CNC Mill Part I - Page 3

uscra112 · Oct 10, 2002, 05:08 PM

Balsaman - that's good stuff, alright! Great that you have such a source. Those will be PLENTY stiff enuf ! The bearing you posted the picture of is worth $200-400 buckadingdongs, new, never mind the rails!

I used to have the same access to leftovers at my last job, but now I work for a CMM company (Zeiss) and they're all air bearings and band drives . . .

Happy trails - there's gonna be two good hours of flying weather tonight, so work has had me for today.....

Scratchbuilder · Oct 10, 2002, 07:43 PM

I'm really gonna reach here with this one, but why hasn't anyone checked out the H2O, pressure cutters? The foam will get wet, but it won't hurt it{it'll dry out}. No worn tooling to replace or resharpen...cuts as fine as a thin stream of high pressure water can, and water is cheap. I've seen these set ups cut thru high grade{5000/6000 series aluminum} that's a 1/4" thick and it'll leave an edge sharp enough to shave off of...nearly. Question is just how much psi will it take to make a clean consistant cut thru roughly 2" of OC pink foam. I'm not even going into lasers. Next question is how would cutting wood be with this...if a fine enough stream could be shot and done quickly at that, there shouldn't be too much of a warpage problem...I'm thinkin.

balsaman · Oct 10, 2002, 07:53 PM

I haven't looked into this. I personally am concentrating on making one that cuts....period. If I am successful, It's a matter of replacing the dremel tool with???? For me, making the x, y, z, table work is enough challange for the time being.

Eric

www.e-zflight.com

PanzyPoof · Oct 10, 2002, 11:55 PM

I was show one of these machines @ Steen Aerolab
Home of the SkyBolt

(My Baby's in the Garage)
And it was huge! Used to cut metal 4130 into fittings. Hmmm I used a hacksaw.
The Nossel is the size of a Hair and Huge $$K .
Water filter system anouther major problem. And the Noise is real Bad. If I recall a fine median is injected into the jet a few mm from the tip. Where it accelerates to the speed of sound
in about 7mm. Ya Nuts.
Nice desired Cut since the surrounding metal is not hardened as with Laser. Big Job keeping it operational.
For my Cutting damm close is good enough for now
Pass 220 paper once Done

I'm shure later on I'll
learn more see and build a nicer machine. As we all would like.

Zoltar · Oct 11, 2002, 02:05 AM

The Dremel or similar is good for a start in this CNC hobby.

As a replacement for electric tools I've been looking for air pressure - hand- tools.

Its used mostly in car bodyshops and they run on pressed air.
and are build rigid, take up larger tools too.

These tools sell at 30 to 40 Euro overhere.

The only disadvantage is the sound and you need a compressor.

BTW-- Balsaman love your guide-balbearing roller guide system I guess you've got it sorted for a durable machine !

regards,

Chris

PanzyPoof · Oct 11, 2002, 02:13 AM

Picked up some more parts. Easy to find just running around to get em.

PanzyPoof · Oct 11, 2002, 02:15 AM

Here is a Skate BB end .It's very smooth

uscra112 · Oct 11, 2002, 08:37 AM

Yah, PanzyPoof is right. I once researched these with a thought toward adding one to the aerospace machining facility I was tooling up. It takes something like 50,000 PSI to make them work, so the pump is enormous and costs $100K. The jet doesn't HAVE to have an abrasive in it. For soft materials like wood you use plain water, but it has to be very clean. The jet is very dangerous. After it goes thru the thing you're cutting it's still good for taking off an arm at the elbow. But y9ou'd be surprised where you find these in use. They cut up chickens with them. Clothing manufacturers use them to cut fabric 50-100 layers at a time. Plastic moulders use them for sprue cutting and flash trimming. But for us? Forget it.

crankorgan · Oct 12, 2002, 11:10 AM

Hi Gang,
I am 50 years old! I used to make gliders back in the
days when there were rudder only rigs. My hobby these days is
CNC. I design and sell plans for dirt cheap CNC machines. I have two machines that I recommend for cutting model plane parts. The
7th Sojourn and Morph. It takes very little machine to cut balsa so I went way cheap! I was hoping that RC people would realize they could exchange GCode files for cutting planes. I put many hours into this field. Please feel free to ask questions. The Dremel Multi Pro will cut balsa like butter. Use a $7 carbide three or four flute cutter. A good DC motor will also cut balsa. With all the foam cutters out there. I decided to make some machines that will do the other parts. There are now several people making
my machines so they can cut balsa parts.

Cranky

Bob H · Oct 12, 2002, 11:31 AM

>I am 50 years old! I used to make gliders back in the
>days when there were rudder only rigs. My hobby these days is
>CNC. I design and sell plans for dirt cheap CNC machines. I have >two machines that I recommend for cutting model plane parts. >The 7th Sojourn and Morph.

Crankorgan, Where can we buy/see your plans?
Bob H

balsaman · Oct 12, 2002, 11:48 AM

His web page is here:

http://www.crankorgan.com/

Eric

www.e-zflight.com

crankorgan · Oct 12, 2002, 11:49 AM

Hi,
My website is:

www.kleinbauer.com

or

www.crankorgan.com

I joined this conference to answer questions and to discuss the steps or equipment need to CNC model parts. I
am not here to push my plans! My plans were the result of a
vision of people exchanging plans for models as GCode-DXF
or PLT.

Cranky

DICKEYBIRD · Oct 12, 2002, 11:52 AM

Quote:

Originally posted by Bob H
>Crankorgan, Where can we buy/see your plans?
Bob H

In case Mr. Kleinbauer's not online, here's his GREAT website. (Also posted in my post upthread a ways.)

http://www.crankorgan.com/

HTH

Milton Dickey

(Oops, Mr. K wuz posting as I wuz typing!)

crankorgan · Oct 12, 2002, 12:38 PM

Hi to Zoltar and DickyBird!

Nice machine DickyBird. What bit do you use with your machine. Zoltar, you are the guy with the CNC machine kit?

Cranky

uscra112 · Oct 12, 2002, 01:05 PM

Crankorgan, you're my kind of guy. Great stuff. What WOULD we do without the internet? Gawd I'd be bored. . . . But I'm going to do my all-wood machine tool anyway, just for grins.

The thing many of us modelers aren't good at is the electronics part. I USE computers extensively, but I'm not hot at the nuts and bolts of the bloody things. You apparently have been scavenging plotters for axis drives and controls. Do pen plotters have the oomph to do anything useful? What are the best ones to scrounge for? How do you get them to slow down enough to become a router? (Gear the motors down?) etc., etc. Is all this stuff in your plans packages?

Oct 10, 2002, 11:55 PM	#34
PanzyPoof Registered User Join Date: Sep 2001 Location: Brampton Posts: 1,436	WaterPick from Hell I was show one of these machines @ Steen Aerolab Home of the SkyBolt (My Baby's in the Garage) And it was huge! Used to cut metal 4130 into fittings. Hmmm I used a hacksaw. The Nossel is the size of a Hair and Huge $$K . Water filter system anouther major problem. And the Noise is real Bad. If I recall a fine median is injected into the jet a few mm from the tip. Where it accelerates to the speed of sound in about 7mm. Ya Nuts. Nice desired Cut since the surrounding metal is not hardened as with Laser. Big Job keeping it operational. For my Cutting damm close is good enough for now Pass 220 paper once Done I'm shure later on I'll learn more see and build a nicer machine. As we all would like.

Oct 11, 2002, 02:05 AM	#35
Zoltar Registered User Join Date: Oct 2002 Location: The Netherlands Posts: 98	-------Air pressure !------- The Dremel or similar is good for a start in this CNC hobby. As a replacement for electric tools I've been looking for air pressure - hand- tools. Its used mostly in car bodyshops and they run on pressed air. and are build rigid, take up larger tools too. These tools sell at 30 to 40 Euro overhere. The only disadvantage is the sound and you need a compressor. BTW-- Balsaman love your guide-balbearing roller guide system I guess you've got it sorted for a durable machine ! regards, Chris

Oct 11, 2002, 02:13 AM	#36
PanzyPoof Registered User Join Date: Sep 2001 Location: Brampton Posts: 1,436	Picked up some more parts. Easy to find just running around to get em. Attached Thumbnails 25.5 KB · Views: 7144

Oct 11, 2002, 02:15 AM	#37
PanzyPoof Registered User Join Date: Sep 2001 Location: Brampton Posts: 1,436	Here is a Skate BB end .It's very smooth Attached Thumbnails 21.3 KB · Views: 7158

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Oct 10, 2002, 05:08 PM	#31
uscra112 Registered User Join Date: Aug 2002 Location: Mid-Michigan Posts: 2,178	Balsaman - that's good stuff, alright! Great that you have such a source. Those will be PLENTY stiff enuf ! The bearing you posted the picture of is worth $200-400 buckadingdongs, new, never mind the rails! I used to have the same access to leftovers at my last job, but now I work for a CMM company (Zeiss) and they're all air bearings and band drives . . . Happy trails - there's gonna be two good hours of flying weather tonight, so work has had me for today.....

Oct 10, 2002, 07:43 PM	#32
Scratchbuilder Registered User Join Date: May 2002 Location: Wayne's World - Illinois Posts: 847	I'm really gonna reach here with this one, but why hasn't anyone checked out the H2O, pressure cutters? The foam will get wet, but it won't hurt it{it'll dry out}. No worn tooling to replace or resharpen...cuts as fine as a thin stream of high pressure water can, and water is cheap. I've seen these set ups cut thru high grade{5000/6000 series aluminum} that's a 1/4" thick and it'll leave an edge sharp enough to shave off of...nearly. Question is just how much psi will it take to make a clean consistant cut thru roughly 2" of OC pink foam. I'm not even going into lasers. Next question is how would cutting wood be with this...if a fine enough stream could be shot and done quickly at that, there shouldn't be too much of a warpage problem...I'm thinkin.

Oct 10, 2002, 07:53 PM	#33
balsaman It's just PLANE silly! Join Date: Jan 2002 Location: Ontario Posts: 915	I haven't looked into this. I personally am concentrating on making one that cuts....period. If I am successful, It's a matter of replacing the dremel tool with???? For me, making the x, y, z, table work is enough challange for the time being. Eric www.e-zflight.com

Oct 11, 2002, 08:37 AM	#38
uscra112 Registered User Join Date: Aug 2002 Location: Mid-Michigan Posts: 2,178	Yah, PanzyPoof is right. I once researched these with a thought toward adding one to the aerospace machining facility I was tooling up. It takes something like 50,000 PSI to make them work, so the pump is enormous and costs $100K. The jet doesn't HAVE to have an abrasive in it. For soft materials like wood you use plain water, but it has to be very clean. The jet is very dangerous. After it goes thru the thing you're cutting it's still good for taking off an arm at the elbow. But y9ou'd be surprised where you find these in use. They cut up chickens with them. Clothing manufacturers use them to cut fabric 50-100 layers at a time. Plastic moulders use them for sprue cutting and flash trimming. But for us? Forget it.

Oct 12, 2002, 11:10 AM	#39
crankorgan Registered User Join Date: Oct 2002 Posts: 569	Hi Gang, I am 50 years old! I used to make gliders back in the days when there were rudder only rigs. My hobby these days is CNC. I design and sell plans for dirt cheap CNC machines. I have two machines that I recommend for cutting model plane parts. The 7th Sojourn and Morph. It takes very little machine to cut balsa so I went way cheap! I was hoping that RC people would realize they could exchange GCode files for cutting planes. I put many hours into this field. Please feel free to ask questions. The Dremel Multi Pro will cut balsa like butter. Use a $7 carbide three or four flute cutter. A good DC motor will also cut balsa. With all the foam cutters out there. I decided to make some machines that will do the other parts. There are now several people making my machines so they can cut balsa parts. Cranky

Oct 12, 2002, 11:31 AM	#40
Bob H bob h Join Date: Oct 2001 Location: Oklahoma Posts: 88	>I am 50 years old! I used to make gliders back in the >days when there were rudder only rigs. My hobby these days is >CNC. I design and sell plans for dirt cheap CNC machines. I have >two machines that I recommend for cutting model plane parts. >The 7th Sojourn and Morph. Crankorgan, Where can we buy/see your plans? Bob H

Oct 12, 2002, 11:48 AM	#41
balsaman It's just PLANE silly! Join Date: Jan 2002 Location: Ontario Posts: 915	His web page is here: http://www.crankorgan.com/ Eric www.e-zflight.com

Oct 12, 2002, 11:49 AM	#42
crankorgan Registered User Join Date: Oct 2002 Posts: 569	Hi, My website is: www.kleinbauer.com or www.crankorgan.com I joined this conference to answer questions and to discuss the steps or equipment need to CNC model parts. I am not here to push my plans! My plans were the result of a vision of people exchanging plans for models as GCode-DXF or PLT. Cranky

Oct 12, 2002, 12:38 PM	#44
crankorgan Registered User Join Date: Oct 2002 Posts: 569	Hi to Zoltar and DickyBird! Nice machine DickyBird. What bit do you use with your machine. Zoltar, you are the guy with the CNC machine kit? Cranky

Oct 12, 2002, 01:05 PM	#45
uscra112 Registered User Join Date: Aug 2002 Location: Mid-Michigan Posts: 2,178	Crankorgan, you're my kind of guy. Great stuff. What WOULD we do without the internet? Gawd I'd be bored. . . . But I'm going to do my all-wood machine tool anyway, just for grins. The thing many of us modelers aren't good at is the electronics part. I USE computers extensively, but I'm not hot at the nuts and bolts of the bloody things. You apparently have been scavenging plotters for axis drives and controls. Do pen plotters have the oomph to do anything useful? What are the best ones to scrounge for? How do you get them to slow down enough to become a router? (Gear the motors down?) etc., etc. Is all this stuff in your plans packages?