Mounting holders for the last axis: Other side, already finished Front side, finished aswell Wiring up the motors... dont **** up now... Lil board with power on / off and killswitch The whole thing, now with suction and added overhead spots mounted. with control pc running mach 3 random shots And finally a video of the cnc running
roughly ( just from the stepper motors and the spindles ) 0,015 mm, but this will wildy wary, depending on flex any and many other factors in the assembly.
Euros 200 Alu profiles 500 motors 150 multiplex 100 bolts and nuts 150 spindeln 200 rails 100 Hand router plus circa 200 small stuff and stupidness. ( everything without pc and software... )
Ok bit tech, lets do this... Fabricating the table One of the later two layered boards Getting an idea how to space out the threaded "holders" after calculating the spaces marking it with a cutter Pre drilling with 3mm Countersinkung from the other side with an 25mm drill drilling all the way through with 6mm drill Gluing and hammering in the holders second board aligning Screwing the two boards together Finished product Mounted First foam piece i spindeled The men who stares at cnc _________________________________________ Before, the spindle cant reach the table and theres not enough free room around the cutting bit. Coming to terms with the spindle after dissasembling as much as possible giving it threads for later mounting Drilling some new holes into the holder Cutting 9mm multiplex in one go ( with the wrong cutting bit ) Finished cutting, leftmost pice wrong cutter which went into the burning hell other pieces with the right cutter. Cutting out finished thats it so far, comments and opinions very very welcome !
I love it man! You've done an amazing job, and the finished table looks great. It almost makes me feel like I cheated by getting a prebuilt machine. I really like your table idea. Would you mind if I used it as inspiration for something similar?
I would recommend cutting the interior features as you have them first. Then using those to hold down the work piece so you can cut all the way through. Also use clamps, or mount a vise or something cause I am envisioning something going horribly wrong with how you are holding your work down.
hmm, actually it works quite well the way i did it, the remaining material hast just the thickness of paper and is really easily removed, we did it all the time like that in the carpentry. about rigidity of the mounts.. u can only ose clamps on the far ends of the table, so thats only a possibility with large workpieces. The amount of force i get with the m5 bolts is higher than the material, before they lose the workpiece it would snap anyway.
I was surprised you didnt use those aluminum profiles as the table too. They have slots in it perfect for holding down objects. Looks great either way and just makes me want to build one for myself even more!
multiple profiles wouldnt make a good table, theres no good way to connect them to each other and it would be very expensive, there are "boards" which have the same slots, but they are really really expensive. the table needed to be easily remanufakturable as well, everyone makes mistakes
We've done that in a big mazak machining 20mm alu, no problems at all. Usually works better than clamping it down as you get good support in Z+X (Unless you use a machine vise ofc). The machine itself looks great, but I'm still a bit dobious as to what cutting forces it can withstand. I guess you'll only use it to mill wood?
Thanks, no im planning to mill alu aswell, right now the motors and spindles get that much force on the routing bit that they can bend it, so im not too worried about cutting force like i postet, 9mm multiplex worked in one pass and thats pretty much the strongest wood u can get. ( beside really really hard woods im never going to spindle)
