Hello guys,
I am starting my own CNC and I want to use a DeWalt mill motor. My only doubt is about the wiring to control the speed of this 1.25hp motor. Any one has use this motor before?
If you are talking about the 611, I have the Porter Cable 450 which is the same router. I have not wired it for speed control, but my Super-PID controller is on the way. I will let you know how it works out.
http://www.vhipe.com/product-private/index.htm
Most people that use routers as spindles just run them full speed. Heck, I don’t even have a switch on mine yet. I just plug it in, or unplug it now (yeah I’m thinking about adding a switch). Although I suppose you could put a universal motor speed controller on it, if the router does not already have one built into it. Although how you’d integrate that into your machine controller is anyone’s guess. I am sure there is a way. But it is probably difficult, and costly too.
Qual controladora você pretente usar?
Started out with a markita router on my cnc but ran quickly into the same problem. Even though I did had a on/off switch and hand speed control wired to a handy position at my desk I found it pretty awkward to use. Fist thing is the noise created by the router itself and secondly the on/off control by the software. As Paul already said I’m sure the is a way but to what cost.
I got myself one of those Chinese water cooled 2.2kw spindles with inverter. Running it now for over 6months without any trouble. Nice and quiet and controlled by Mach3. It took a bit to get all the settings right but after that “She goes”.
I don’t know if that would be an option for you but it definitely worked for me so far. The price was not much more than a good desalt or markita router.
I like the idea of the Chinese controller and spindle, but I did not have 220v power outlet and my electrical panel could not be extended to add one. The Chinese controller and spindle was my first choice.
@Sandro_Kuehne
yeah the noise of my router is killing me over here too. That is what is going to drive me to invest in a real spindle as soon as I can.
I did get the Bosch Colt router I am using now used for cheap. So a real spindle from the usual suspects will cost me considerably more.
Also many VFD’s can be run on lower voltage if de-rated. For example a 220V 2.2KW or even a 1.5KW inverter can be fed with 110V for a 800W load. Some inverters will throw an error due to under voltage and not function, but others can be made to work.
@Eclsnowman
what is a VFD going to do for a commutated motor? Other than jack and shit.
@Paul_Frederick there is a link to a water cooled spindle in my comment along with the 110v vfd. He said that is the way he wanted to go but said he didn’t have 220V. I was just informing that only having 110V is not a limitation to using a water cooled spindle drive w/ vfd combo.
I am aware a vfd does not function on a commutated motor.
But this will: http://www.vhipe.com/product-private/SuperPID-Home.htm
http://www.vhipe.com/product-private/SuperPID-Home.htm
You can also build similar controllers for router speed control via online open source plans if you have some electrical and soldering prowess.
@Eclsnowman
Yes VFDs only work on phase locked motors. Which is the induction variety. At that they do not even work properly on all of those. Some motors just don’t like changing speeds. It really depends on how the motor was designed, and built, how it is going to perform in that arrangement.
I somehow don’t understand why someone need to be able to change the spindle speed during the toolpath. Sure you need to be able to run the spindle with different speeds but once the speed is set it won’t really change until the program is done and a tool change or material change happens. So my main priority was to be able to set a speed and turn the spindle on and off with the controller.