On Jan 29, 2014, at 6:26 PM, Jon Elson <[email protected]> wrote:
> On 01/29/2014 04:35 PM, Jeshua Lacock wrote: >> I see. That would pretty much be a deal breaker as just the power supply >> alone for 5 axes would be $750. Could I use something else (not that I don't >> think its not worth it - I just don't have the budget). Can I use toroidal >> or switching power supply (even if it may mean going with brushed motors)? >> Or perhaps this driver: >> http://www.automationtechnologiesinc.com/products-page/nema23/dc-brushless-driver-for-kl23bls-115 >> > > Our PWM servo amp is not a "power supply" is is a power amplifier > that takes a control signal and sends a measured amount of power > to the motor. The Automation Tech device you mention is a SPINDLE > driver, not meant for positioning servos. Understood, thank you for clearing that up! So I guess to use a power supply I would have to use something like a brushed motors, Gecko controllers and your USC instead (like I have now for another machine). The Automation Tech device says: "DC Brushless Driver for KL23BLS-115". I thought KL23BLS-115 is the brushless motor you had recommended: http://www.automationtechnologiesinc.com/products-page/dc-brushless-motor/kl23bls-series-11 It says on the product description: "An external voltage of 0-5V can also be used to control the speed. The direction of the motor is specified by direction control input. - See more at: http://www.automationtechnologiesinc.com/products-page/nema23/dc-brushless-driver-for-kl23bls-115#sthash.pyCNlU0w.dpuf"; Apparently they also have a driver for their smaller brushless motors. >> I remember you mentioning that now. Do you like U.S. Digital or what is your >> preference? >> > US Digital is OK, but the Avago encoders are not much more > expensive, and you get a wide range of resolutions, as well as > an index output. Cool, thanks! >>>> One last question - how would you recommend going about adding a 5th axis? >>>> I could live with 4 axes for now manually setting a 5th axis (e.g. tilt - >>>> but 5 would be ideal). >>> Two PWM controllers can be "daisy chained" off one parallel >>> port, to go up to 8 axes. You can use the extra channels >>> for spindle encoder/speed control, jog pendant, etc. >>> When you connect the additional controller, the driver >>> automatically detects it and exports additional HAL pins. >> Awesome! Do they each get their own serial port? >> > There is no serial port. These devices are controlled by the > PC PARALLEL port, and one Par Port can control two boards. > The boards synchronize between themselves over the par port > bus. Sorry - I meant parallel port. Nice it only needs one! Would I need a special cable to connect the boards? Best, Jeshua Lacock Founder/Engineer 3DTOPO Incorporated <http://3DTOPO.com> Phone: 208.462.4171 ------------------------------------------------------------------------------ WatchGuard Dimension instantly turns raw network data into actionable security intelligence. It gives you real-time visual feedback on key security issues and trends. Skip the complicated setup - simply import a virtual appliance and go from zero to informed in seconds. http://pubads.g.doubleclick.net/gampad/clk?id=123612991&iu=/4140/ostg.clktrk _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
