(SatanKLawz)
01-04-2007, 08:32 PM
I have most of the parts to build a cnc router including all of the electronics, software, and instructions. I have over $1,400 in all this stuff and it is all brand new never used. I am looking to unload it all for a lot less if someone is interested please PM me or just ask here and I can give further details. It would be great for general fabrication like cutting frame pieces for these helis and other misc. things, it can even cut aluminum. I was going to use it to make my own R/C stuff and do acrylic fabrication for my buisness. I have access to one full time now and do not need to finish this one which would of been my personal machine. When finished it will have a cutting area of 55" x 24" x 6" (x,y,z axis) This is the ultimate DIY tool, imagine never having to buy expensive carbon fiber or like parts again and having everything on your heli a one off piece.
(SatanKLawz)
01-05-2007, 07:37 PM
I have had a lot of interest in this so far, thanks guys and hopefully I can find it a new home where it will make someone very happy! here is a more complete rundown of what is involved and included.
I will try my best to explain everything including what you will get, what you will still need, ect...
First of all the table is a 3 axis table (x,y,z) and is built from a set of modified plans. The plan book is included and the design has only been modified in a few areas to allow for longer rails in one of the axis and does not affect the dimensions of the rest of the table or size of parts needed to build it.
pic of plans...
http://www.acrylicsumps.com/images/plans.JPG
Next is the heart ond soul of the machine it is the driver board and drivers. This connects to the printer cable port of a computer. It includes the 3 axis driver, instructions, 3 stepper motors, power supply, fan to keep it cool, and all documentation and instructions on how to set it up. (pretty easy if you can follow instructions and are at least a little electronic savy which I know most of you are).
Stepper motors are not in this pic but one is seen in another pic...
http://www.acrylicsumps.com/images/xylotex.JPG
Next are the rail assembly's. The long rails are 20mm x 60" long, fully supported, precision ground THK rails. These are EXPENSIVE to say the least and I got a real good deal on them brand new. The rails come with 4 brand new open end pillow block trucks for the gantry to ride on. This is the best way to do this and these things just glide on the rails so smoothly and have zero play in them. The other rails that are 30" long each are not pictured but the mounts are. They are also 20mm in diameter.
http://www.acrylicsumps.com/images/railsnblock.JPG
http://www.acrylicsumps.com/images/rails1.JPG
4 of these for the 30" axis...
http://www.acrylicsumps.com/images/brace.JPG
Next are the acme screws. I had all of these custom made for this table and are way better then what the original design called for in "all-thread" Since this is a dual lead screw design table there are 2- 60" screws for the x axis, 1- 24" screw for the y axis, and 1 - 6" screw for the Z axis. They all come with derlin nuts which hold up very well and are easy to replace when needed. They are far easier to deal with then the expensive anti backlash nuts that some people use. The nuts cost about $3 each compared to the $60+ that the other cost. Also included are 6 bearing blocks made for these screws. These reduce drag of the system and are essential for keeping accuracy.
http://www.acrylicsumps.com/images/screws1.JPG
http://www.acrylicsumps.com/images/screws2.JPG
Next is the belt drive setup for the dual lead screw design. It consist of a 80"+ long belt and 3 aluminum drive pulleys. These are parts that the plan book requested for. However it asked for the cheaper nylon pulleys and I upgraded them to the aluminum ones of the same size.
http://www.acrylicsumps.com/images/beltdrive.JPG
The plans say that this driver board and stepper motor drive kit can push a full sized router no problem but that the table (as built to the plans in the book) flexed a little. I have upgraded the parts in the stress areas and this table when built will be more than able to hold up a full sized router. I However bought a mount for the Porter cable trim router because I was going to build a lot of very small detail pieces. I had planned on buying an additional mount for a full sized router so I could cut other types of thicker material up to 1" thick but never got around to buying it.
http://www.acrylicsumps.com/images/routerbracket.JPG
This last pic includes a lot of misc hardware that is included like a motor mount for one of the stepper motors, the lov-joy flex couplers to attach the stepper motors to the acme screws, one of the stepper motors, and the derlin nuts.
http://www.acrylicsumps.com/images/misc.JPG
Now, what you have to have to finish this table....
1) spindle/router
2) 4 more 20mm trucks/pillow blocks
3) z axis rails (2- 12" rails)
4) Misc wood and some MDF
5) Misc wood screws, nuts, and bolts
That is all I can think of, should cost you no more than a couple of hundred to get it going.
I sat down and added all of this stuff up and I have personally spent over $1,400. All of this stuff is brand new never used. I did not want any used stuff. Along with this comes tons of research that I have done and knowledge that I have gained if you ever need it. I would be more than happy to answer any questions that you may have when building it or if you need some help. I have a link to sites that sell bits specifically designed to cut all types of specialized material, I can also help you find the rest of the stuff that you may need to finish it.
I am sure I left something out here if you have any more questions please ask.