My Homemade CNC milling machine

[PleaseLookAwayNow]

What, no money shot at the end? I find this difficult to masturbate to!

[shortyjk95]

plz plz plz make a video showing how to wire it to a computer bcuz i know how to make it but i am still trying to figure out how to wire the homemade cnc machine to a computer

thanks

[koncertLive]

@shortyjk95 that is actually really easy, but one would have to know what type of system you are building. If you buy your electronics from Brent @ Hubbard CNC INC in Sacramento, Ca he includes a schematic if you ask. Im not affiliated with him but I buy from him. (916) 368-2815.. He has great prices and is a really nice guy. Tell him Ron from Fambooking sent you please...

[mtnviper1963]

Of course, it depends on what you define as "good money". Some guys are satisfied with "buying" themselves a job but others actually prefer to be profitable. I do give credit to the guys, that put these little machines together, for their innovative thinking that went into the whole project.

[mtnviper1963]

projects like this are for people that have more time than money. Furthermore, they are just toys...meaning that you can not expect to do anything accurate or with any speed. If you are serious about making money with a cnc mill, do yourself a favor and pick up a nice used machine that is actually a real CNC mill that you can do something worthwhile with.

[Psychlist1972]

@mtnviper1963 Step out of your shop and take a look around. Plenty of people make good money using machines like that. They don't all have to be capable of hogging aluminum or cutting tool steel. Sheesh.

[koncertLive]

@mtnviper1963 <---- open source sniper!!!!! POOR BABY

[webzy123]

Im about to start building my own and i cant decide what size motors to use. Do you think 1.2Nm bipolar stepper motors would be enough for the X and Y axis? they will be running on linear rails with up to 4 linear ball bearings on each axis.

Thanks

[kovendre]

@webzy123 The motor must be a little bit oversized if u want to reach high speeds/ accelerations. And motor size depends for what you want to use, for what load, it must be calculated. For eg. i use 2,1Nm unipolar sanyo denki motors on this machine and the 1,2Nm bipolar torque is almost equal with 2,1Nm unipolar torque.

[koncertLive]

@webzy123 As long as your not trying to move a massive 4 foot solid steel gantry the 425oz nema 23, 8 wire, 200 step, bipolar is exactly what I will be using. The real question you should focus on is your driver.. Power Step PSD5042-2P is the only thing I will use. You need 1 driver for every motor and a breakout board for every 6 drivers. Costs is increased but after you spend some time looking at the others this is really the best way.

[douro20]

Spindle looks like an old grinder spindle.

[kovendre]

@douro20 Actually is an old, german 33000 RPM Georgii Kobold August Heine miller spindle

[jomatecc]

impressive design interesting looking spindle...

[step4560]

Very nice, well thought out and executed design!

[marleykid1971]

hello , could u pleas send info on the price of u contructing one for someone, and contact info, my name is chandler, thanks

[Slambo2k]

Nice design, excelant build. What make is the spindle?

[agusscamp]

ha ha ha LOL...

double coloum machine.

[wakojack]

@agusscamp Actually It's called Bridge Type Machining center. They offer more rigidity and accuracy.

[abbirina]

neat... i like the x on the table and the y on the boom.

[Ibringthetruth1]

great work. inspiring.

[eldermalagon]

I would like to know if you could help me. I want to make my CNC machine but I don´t know how to control the motors. What do you use, circular interpolation or what kind of technique?

[adisharr]

The motors are all controlled through software. Every package employs circular and linear interpolation to accomplish complex moves. What you need to worry about are what kinds of drives you're going to use, what type of interface to the drives (parallel or serial) and the machine design itself.

I would highly recommend using chopper drives as you'll be able to use a higher voltage power supply for motors and they will run much better (more torque, lower temperature).

[eldermalagon]

Ok thanks for your answer. Ok I know now that you use linear and circular interpolation, my question now is, How do you program that? how do you make to move the motors according the final equations? because you can only move the motors in "fixed steps", so How do you "translate" the equations in to stepper motor movements?

[SupermaxCNC]

The machine runs with a control software, in homemade machines this is usually Mach3 or EMC. This takes G-Code which is either hand written or compiled in cam software. Look up g-code and you will find more information.

[nuzzget]

I use Cambam You can draw out what you want it to do such as writing or cutting out designs and it has a built in translator into G-code. Cambam is free but take the time to learn how to use it.

[lonerayven]

Stepper motors, Stepper motor drivers/controllers, USB or Parallel input. You can buy controller DIY kits or buy CNC predone ones for about 100$ a pop for decent ones.

[ryandardis]

damn sweet dude

[kevbielo]

this is pretty cool mate.well done

[SILVERGOLDLUX]

Great design !

[joedanial]

a very simple yet a great design...im very impress with your design...to my rating...yours is the most impressive diy design i've seen so far...2 thumbs up...

[donnyab]

great machine... and quiet too !

[Facudejota]

what stepper model and electronic (drivers) are you using?

thanks and congratulations for the machine

[td4vn]

holy shit ,that is a real deal.

[cypspark]

how much did this cost to make?