I mentioned it before a couple of times already im was planning to build an diy cnc. My inital specs for the machiene are: capability of routing up to - 19mm mdf / whiteboard - 5mm aluminium - ~700 x 700 mm working area - 3 controlable axles (for now there wont be a 4rth axis to tilt the router itslef, maybe i add it later for complex 3d shapes) - minimum room requirement ( therby it has to work like one of its bigger brothers, the workpiece itself wont move, complicating the build further) To make it a bit clearer here is an simple skp drawing showing the basic shape of the cnc: Green are the linear rails and the spindles, red are the stepper motors. After coming back to germany i needed some time to set myself up again, but now i got all the bits and pieces together, so yesterday i could actually start building it ! right now the cnc consists of a makeshift table / baseplate ( ikea second hand store is my friend ) , mounted linear rails for the first axis and parts of the actual tool holder. Today ill try to mount the whole upper part, so expect more pics soon ! pic of the mounted rails on the table Working on the lower part of the tool holder ( i know im messy, got too exited Close up on one of the runners Runners mounted One side of the lower part of the tool holder complete with mounted runners The whole thing closeup of the rails, already with the lower part sitting on them another closeup The whole thing in all its glory
I was freaking out that the whole thing jams on the linear rails, but after a lot of fiddling it runs smooth as silk
That's pretty interesting. I'm really thinking of biting the bullet on one of these DIY CNC jobbies. But college leaves me with no bloody spare time
i got a set with 4 linear rails 800mm and eight runners, they were 200 euros ( pretty cheap considering they are usually around 90 euros per rail with two runners) i think the whole lot wil cost me roughly 800 in the end, but its the same as usual, without spending anything u dont get anything.
I've often pondered,building a DIY CNC machine but never took the plunge so i'll be following this with interest,great start,subscribed
unfortunately, one drive screw will be under the table moar pics: Redone the mount for the lower part ( now adjustable and much easier to reach ) drilling the "middle" plate which will later hold the short rails (300mm) for the tool closeup of the top part, already assembled with another 800mm set of rails another shot from the top rail assemply, now with the mounted middle part the lot
Looks good, personally I'd build it from aluminium profiles, but I guess it depends on what you intend to do with it. I'm not certain about this, but your linear components look very similar to these ones: http://myworld.ebay.com/linearmotionbearings2008/ Are they any good?
dunno bout these, might be the same ? i would use aluminium profiles aswell, but proper ones are friggin dear...
Yes unfortunately, the cheapest ones I've found are from here: http://www.smt-montagetechnik.de/produkte/k-1.htm I'm currently planning to build myself a new & improved machine, since the one I have now is rather dated, so I'll def follow your build
what im planning later on when this iteration of the cnc is working to mill all the connection pieces and sandwich them out of - 5m alu + 10 mm multiplex + 5mm alu - with epoxy that should be rigid enough i checked ur link sleep but as i said, for me its just too dear
Never seen one made out of wood before. Ours are steel and aluminum, though they cost around $150,000 each. http://web.mac.com/barrywoods/Site/Plotter_Table.html
+ Rep ... I have added this thread to my subscription list mostly because not all the pics come out at work (where i read this forum most often) and partly because I want to make sure and not miss seeing it all come together
cheers mate somehow bit tech is like one of these addictive mmos, im such a rep whore anyway, today i wanted to reinforce the main table and mount the top part, but its really freezing here right now ( -7c ) and snowing like hell, my small workshop isnt heated, so maybe i skip today I decided to redo the smaller top plate, first time i did it came out too crappy cuz i didnt have spade bits to properly countersink the holes...
Great Project Most diy CNC projects only cover small area's. This larger design is what I have been looking to see built. I wonder if the wooden components will keep the noise down a bit. Great project and thanks for sharing!
After having too much time to think about my project and no time to actually work on it ( moved, bought car, found job etc etc ) i decided to completely redo the design again. My new design will be mainly based on 45x45 bosch aluminium system profiles, because to be honest it would work the way i started, but the lack of overall rigidity would cause mayor problems later on so heres a quick update on how it will look: the profiles and brackets will roughly be another 200 euros, but i really think itll be nesessary..
