Bongofish

General Category => Can't stop building => Topic started by: AndreZX on February 15, 2008, 02:50:25 PM



Title: CNC Milling machine
Post by: AndreZX on February 15, 2008, 02:50:25 PM
Anybody ever try building one of these?

http://www.rockcliffmachine.com/info.htm

I'm sorely tempted. I'm pretty sure I want to spend the $20 to order the plans and see what's entailed. The construction should be straightforward enough, I'm just wondering how the motors and controllers interface with the computer.

But since I do a lot of 3D work, it'd be so awesome to be able to create one of my characters in styrofoam or plaster. A buddy of mine and I both do a lot of work creating props— swords, guns, armor, you name it. This would make the construction of that stuff a hundred times easier.


Title: Re: CNC Milling machine
Post by: Drewid on February 15, 2008, 03:11:13 PM
A friend of mine has got a real one in his garage.   ;D  I must get some photos of it.


Title: Re: CNC Milling machine
Post by: AndreZX on February 15, 2008, 03:14:00 PM
A friend of mine has got a real one in his garage.   ;D  I must get some photos of it.

Please do. Any idea how much real ones cost?

EDIT: Nevermind, just checked them out on ebay. They seem to go from a couple thousand dollars and up.


Title: Re: CNC Milling machine
Post by: Drewid on February 15, 2008, 03:21:41 PM
Yeah. He's an engineer.

He had to soundproof the garage, and the thing pretty much fills it.


Title: Re: CNC Milling machine
Post by: AndreZX on February 15, 2008, 03:28:48 PM
You guys ever heard of Siggraph? It's a huge computer graphics conference held in the US every year. Two years ago it was in Boston, and while I was there I was checking out a vendor booth with "3D Printers" which are just these milling machines. Some of them will even paint your model too. It was pretty cool, as their floor demo they'd scan your head into 3D and then mill out a small plastic version and make a keychain out of it.

I told the guy that I would try to get my school to purchase one, and told him I go to Rutgers. Then he informed me that Rutgers was already very actively looking into buying one.

That was two years ago, and I never heard anything about it again. Ah well. Would've been nice. They'll probably get it after I graduate this semester.

If anyone else is interested, I'll let you know what I find out from the plans and see what kind of a budget this will entail.


Title: Re: CNC Milling machine
Post by: pedro on February 15, 2008, 05:11:33 PM
Andre, you might want to check this link out http://reprap.org/bin/view/Main/WebHome its for a bunch of university people building their own 3d printer, looks intresting and could be useful for proving steels frames at work.

http://www.cnczone.com/forums/index.php?s=d93401fa1b98853a7d65fe4cef77e2d1 for CNC
http://www.5bears.com/cnc.htm
http://www.crankorgan.com/
http://www.gloomy-place.net/cnc.htm

Yes I am at work, its friday afternoon what else do you expect me to do other than surf  :D


Title: Re: CNC Milling machine
Post by: AndreZX on February 15, 2008, 05:17:31 PM
Whoa mate, thanks for the links.  ;)


Title: Re: CNC Milling machine
Post by: Switz on February 15, 2008, 10:40:32 PM
I was thinking about building one.
Until I found out the final price is about 1400 USD.
 :'(


Title: Re: CNC Milling machine
Post by: digitalfog on February 21, 2008, 01:00:41 AM
I had these guys 3D printed, the two gray ones are SLA (stereo lithography) sculpts, made from a plastic material, the one on the right is from a z-corp printer,its a powder material mixed with a glue.  The SLA are much nicer and alot more expensive.  Would love to have my own printer and CNC machine :).  Im planning a custom CNC case for the next build. ;D


Title: Re: CNC Milling machine
Post by: Switz on February 21, 2008, 01:05:49 AM
Yeah.
That powder stuff can create some nice things though.

I have seen some before.


Title: Re: CNC Milling machine
Post by: AndreZX on February 21, 2008, 01:14:27 AM
Whoa, digitalfoq. Those are fantastic!


Title: Re: CNC Milling machine
Post by: digitalfog on February 21, 2008, 01:22:43 AM
Thanks Andre !!   ;D


Title: Re: CNC Milling machine
Post by: Chems on February 21, 2008, 02:05:27 AM
They are cool!

What format did you give the models in? I take it you modelled them yourself? When you say expensive how expensive?


Title: Re: CNC Milling machine
Post by: AndreZX on February 21, 2008, 02:39:49 AM
They are cool!

What format did you give the models in? I take it you modelled them yourself? When you say expensive how expensive?

Yeah, I'm curious too. I'm assuming the generally take DXFs, but can they use OBJs?

I've got a ton of models I'd love to get made.


Title: Re: CNC Milling machine
Post by: Chems on February 21, 2008, 02:42:51 AM
Me too! Even just getting a cast or such milled out and then a diecast model made would be totally awesome.


Title: Re: CNC Milling machine
Post by: Switz on February 21, 2008, 02:43:35 AM
Lol Andre.

They are really expensive.
I was looking at some before.
I think it was like 20-40 bucks per lol.


Title: Re: CNC Milling machine
Post by: AndreZX on February 21, 2008, 02:46:30 AM
$20 to $40 per? I'd call that dirt cheap.

I'd order several tomorrow if I can get them for that.


Title: Re: CNC Milling machine
Post by: Chems on February 21, 2008, 02:52:40 AM
Thats not expensive, I was thinking you were going to say like $200!


Id really like to get a cast made and get a die cast model made as a one off for myself. Anyone know any companies that would make a 1 off cast?


Title: Re: CNC Milling machine
Post by: AndreZX on February 21, 2008, 02:56:09 AM
Thats not expensive, I was thinking you were going to say like $200!


Id really like to get a cast made and get a die cast model made as a one off for myself. Anyone know any companies that would make a 1 off cast?

I'd like a cast too. I do a lot of work with fiberglass, and it'd be great to be able to make as many copies as I wanted.

I can't believe $20 to $40 can be right. I'm with you Chems, I was thinking $200. But if it is that cheap, I'm sure I'd buy a lot of models and end up spending more money than if it were really expensive.  ;D


Title: Re: CNC Milling machine
Post by: digitalfog on February 21, 2008, 03:09:45 AM
They are expensive, the two SLA's in the pic I posted, plus another character and base was $1200.  The Z-corp models were about $250 for the same set.....but those are extremely brittle.  Knock em over and its toast.  I had to submit .stl files to the printer, I used Polytrans to convert the Lightwave file into stl.  (obj works as well)

Ill dig up the other image and post it here in a sec...or two  ;D


Title: Re: CNC Milling machine
Post by: Chems on February 21, 2008, 03:10:29 AM
Christ, thats more the cost I was thinking of!

Thats that idea out the window!


Title: Re: CNC Milling machine
Post by: Switz on February 21, 2008, 03:16:18 AM
OH LOL

Just realized, when I came up with that.
I was looking for a simple 4x5 cutout frame with a small bevel.

The only model I had.

LOL


Title: Re: CNC Milling machine
Post by: digitalfog on February 21, 2008, 03:32:40 AM
These are priced out based on volume, and interestingly the "taller" the object is, the more it will cost.  Heres the complete set, the tallest guy is a bit over 7".


Title: Re: CNC Milling machine
Post by: Chems on February 21, 2008, 03:40:31 AM
So what is that stuff, is it durable?


Title: Re: CNC Milling machine
Post by: AndreZX on February 21, 2008, 03:54:39 AM
Fantastic characters. Do you have anything that you've used them in that you could show?


Title: Re: CNC Milling machine
Post by: digitalfog on February 21, 2008, 04:03:06 AM
These are characters from Sam Fout's Project Neptoon.  We had a working relationship a couple years back and these were prototypes for vinyl toys.  Sam is a traditional 2d animator and he wasn't interested at all in the project going 3D.  Kind of a long answer for no, but I have to say that I love his characters!  I would at some point like to redo these guys so they can be animated...... but thats true for all of the other "projects" I would like to work on  ::)


Title: Re: CNC Milling machine
Post by: Switz on February 21, 2008, 05:28:29 AM
Sweet.

I would love YOU to :P

haha


Title: Re: CNC Milling machine
Post by: Drewid on February 21, 2008, 03:07:24 PM
Woah, nice....


Title: Re: CNC Milling machine
Post by: Drewid on March 02, 2008, 11:21:34 PM
Back on topic.

My friends garage:


Title: Re: CNC Milling machine
Post by: Drewid on March 02, 2008, 11:29:28 PM
4 axis, (x y z and rotation), about 18" in any direction accurate to a thou on an inch, about 25 microns.

He had to install a 3 phase converter, (which isn't recommended but works), and a new compressor and tank. He's also got a tool collection for it big enough to need an excell catalogue to keep track of them all.

It's needed a bit of work to get it up to scratch, and still needs a bit more to get the tool carousel working properly, there's a leak to two in the pneumatics to be tracked down before it's used in anger. 


Title: Re: CNC Milling machine
Post by: Switz on March 03, 2008, 01:08:53 AM
Sweet.

My old school had a cnc.
It wasn't too powerful though.


Title: Re: CNC Milling machine
Post by: iRoc on May 02, 2009, 05:35:53 AM
Look I know it's old topic, but Smithy makes Tabletop CNC Mills and lathes. They are extremely reasonable!

http://www.smithy.com/products.php?cid=1

As for trying to make one yourself. Having run a CNC Mill and Lathe before I can tell you that you would pretty much need Drewid's friends' garage That to this day still remains in an undisclosed location)  to pull it off. $1,200.00 is so reasonable, because a full size can can easily be ten times that. Being as most of the pictures on the posts are gone I can't see if you guys were talking about a real deal CNC Mill or a small 3D "router" that only really cuts one material. I really wouldn't suggest trying to build an actual CNC Mill. You are talking some seriously large chuncks of metal that have to be ultra finely produced.

You could half way build on if you took a really good drill press and made the base plate moveable on the X,Y,Z axis  It has to have very precise control of the movement in all three axis. It would be ok for small soft material work. I feel large enough servos to really with out fail handle the X Y Z Axis movement would be the cost of a Smithy almost. I'm All for DIY, but making a CNC in contrast to buying one. I'm gonna hold out for buying one. 

IF you guys are really serious about making one yourself then Here's what yo would need to do:

Get a large near industrial drill press.
Get three highish quality drills to take apart for the motors and forward reverse switches.
A computer to control the drill motors movement.
A three axis lathe head carriage.<------ could be picked up on eBay or the likes. Heres a pic(http://img.photobucket.com/albums/v654/300sniper/latheresto23.jpg)
Some all thread. <----- That's metal round bar that has been threaded it's entire length. Comes in various sizes. You'll need 1 long piece for the X and 2 shorter pieces for Y, and Z
You will need to make a strong (preferably  heavy) metal frame to hold the guide "ways" for the 3 axis table. It's for precision got to be going no where at all.  The frame could be made of really thick hard wood, but where are you going to get Redwood that think and long? I know it could be made of wood, because the Lathe I bought and had until a divorce was a Craftsman from before Craftsman had anything to do with Sears. The motor had been "replaced" on it in 1896. Seriously! Had two huge Redwood planks for the main body each say 6"X14"X7'. Then two huge cast iron sets of legs that capped the ends off.  I bought it for $300 from a friends father that had a Machine shop. When I picked it up he told me it had started 3 Machining businesses and a Machining School. You have no idea how much it broke my heart to find out it had been spitefully sold from under neath me  :'(, but I digress.


Title: Re: CNC Milling machine
Post by: stk2008stk on October 13, 2012, 11:10:21 AM
Hi just spotted this thread.

I have designed and built my own 3 asix CNC machine.

If any one wants any work done let me know.