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http://www.makecnc.com/proddetail.php?prod=freemakebot
PLEASE NOTE (International Readers): Sadly due to the weight of this item, free shipping only applies to the United States as it is not cost effective to ship this item internationally.
Please register at our Forums and we will notify you when the Kit plans and DXF files will be available in our Digital blueprint library for you to purchase and to have this kit cut out by your local CNC company.
You can also check our forums for help if you want to make this machine and you live in a country outside the USA and Canada
The idea behind the Award Winning Instructables.com CNC Router was to fulfill a desire for a desktop sized CNC machine.
While it would have been nice to purchase an "off the shelf" unit, the issue of price as well as size proved prohibitive.
With this in mind, the original designers (Oomlout) endeavored to design and build a three axis CNC machine and post it as an open source project on Instructables.com, which they did and for that won an award.
A laser cutting machine was the prize, if I remember correctly. Now what I would not give for one of those.
Many people went ahead and built this machine from the great instructions Stuart gives in his Instructables, including this writer.
But after trying to make an accurate machine with hand tools and messing up several times, in the end, I went to a local company with an industrial Komo CNC Router to have them cut the parts out for me.
So began my journey with this little machine.
To start with, the DXF files at the Instructables website could not be cut on a CNC Router as they were in a broken and messy state.
They were only good for printing and making paper plans to cut around with a jigsaw or similar.
No fault with Stuarts great work as the original DXF's were never designed for the purpose I modified them for.
So I set about fixing them and during that process I modifed them to make the machine look more presentable and also changed a couple of the bearing sizes to a more readily available and less expensive bearing.
Another major factor was that the DXF files had sharp inner corners that could not be cut by a 1/4 inch CNC endmill due to radius issues.
They needed to be intensively modifed to achieve the snap together fit required for this project.
Along with that was the issue of getting accurate edge boring done to bolt the machine together. This difficult part was also programmed and done on the Komo CNC Router.
All in all, after many hours of work I came up with all the files ready to cut on the "Big" CNC Router and it occured to me that if this is happening to me then it must be happening to other people.
So the result of my journey is the MakeBOT version of the Instructables CNC Router, an easily assembled kit set for those of you without the time, energy or perhaps skill, to enjoy without all the fuss and hair pulling of trying to make one from scratch.
This CNC Router comes with all the necessary MDF and metal parts dead accurate, all the bolts, nuts, belts and pulleys included, as well as all the parts drilled and cut.
All you need to do is assemble it and add the stepper motors (available at this site) and electronics, some software (Mach 3 also available at this site) and you are up and running!
Full support for this kit is available at www.makecnc.com/forums. Please feel free to ask me any questions you want through our Forums about this Great Little Kit.
The machine specifications are as follows:
Small footprint (30" x 25" footprint)
Usable working envelope (10" X-axis, 14" Y-Axis, 4" Z-Axis)
Relatively fast cut rate (60" per minute)
Ability to cut ply-wood (Succesfully)