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Box level controller products / Build-a-box option?
« on: October 30, 2016, 08:09:16 AM »
Is there a build-a-box option for something like the PMDX-340? Is one limited by the components included or is it possible to customize?
I have 2 issues at this point. The first is to upgrade my prototype desk-top CNC grinder from the Campbell's BOB and Cullins' encoder board to one of your BOBs and preserve as many components as possible including motors, drives, power supply, probe, limit switches and motors. The motors are NEMA 34 600 oz/in motors like these http://machmotion.com/cnc-products/drives-motors/stepper-drive-motors/nema-34-600-ozin-stepper-motor.html that can be wired at 3.7, 5, or 7 amps. I am using Gecko 251x drives and am not sure how I am getting away with 3.7amps using drives rated for 3.5 amps... I hope to upgrade to Mach4 and use the same computer running Win XP 32 bit but switch from parallel port to USB. I could downsize the motors on the prototype if absolutely necessary or use an intermediary BOB from another source and modify future machines.
So the second issue is the future machines that I will sell. We have all the flexibility needed to change the design. It would be great to be able to get a box from you all ready to go. I do not understand from the pdf on the PMDX-340 what BOB is included or what drives. A NEMA 23 3 amp motor could work and I would need a probe. Now I am using a http://usdigital.com/products/encoders/incremental/linear/PE but find that it is no longer available!
The Z and X axis motors only move 1 inch for positioning and then the Z stops to hold while the Y axis during moves very slowly during light grinding. These 2 could be NEMA 17 or 23. The X axis motor does all the work, and this is where I was considering the Teknic motor. That may be more expense and trouble than required. The motor I am using in the prototype does fine but I believe with a spindle turning at high rpm in the 6-8k range with light grinding there will be very little torque needed so it is worthwhile to consider NEMA 23.
So glad to find excellent products and support that so many rely on!
Thanks
Keith
I have 2 issues at this point. The first is to upgrade my prototype desk-top CNC grinder from the Campbell's BOB and Cullins' encoder board to one of your BOBs and preserve as many components as possible including motors, drives, power supply, probe, limit switches and motors. The motors are NEMA 34 600 oz/in motors like these http://machmotion.com/cnc-products/drives-motors/stepper-drive-motors/nema-34-600-ozin-stepper-motor.html that can be wired at 3.7, 5, or 7 amps. I am using Gecko 251x drives and am not sure how I am getting away with 3.7amps using drives rated for 3.5 amps... I hope to upgrade to Mach4 and use the same computer running Win XP 32 bit but switch from parallel port to USB. I could downsize the motors on the prototype if absolutely necessary or use an intermediary BOB from another source and modify future machines.
So the second issue is the future machines that I will sell. We have all the flexibility needed to change the design. It would be great to be able to get a box from you all ready to go. I do not understand from the pdf on the PMDX-340 what BOB is included or what drives. A NEMA 23 3 amp motor could work and I would need a probe. Now I am using a http://usdigital.com/products/encoders/incremental/linear/PE but find that it is no longer available!
The Z and X axis motors only move 1 inch for positioning and then the Z stops to hold while the Y axis during moves very slowly during light grinding. These 2 could be NEMA 17 or 23. The X axis motor does all the work, and this is where I was considering the Teknic motor. That may be more expense and trouble than required. The motor I am using in the prototype does fine but I believe with a spindle turning at high rpm in the 6-8k range with light grinding there will be very little torque needed so it is worthwhile to consider NEMA 23.
So glad to find excellent products and support that so many rely on!
Thanks
Keith