| Electronics > Projects, Designs, and Technical Stuff |
| Pillar drill motor control |
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| cleanworkbench:
I,m looking into the idea of changing out the original single phase motor on my pillar drill to something controllable in variable speed. What type of controllable motor should i be looking at for this application. Thanks |
| MosherIV:
--- Quote --- I,m looking into the idea of changing out the original single phase motor on my pillar drill --- End quote --- Why? Is it broken? Does the pillar drill have a set of different size pullies and belt inside? http://pillardrillmachine.weebly.com/the-pillar-drill.html The pullies and belt are there to allow you to change speed/torque. I doubt you will be able to easily replace the single phase AC motor for a DC varible speed one. I do not think anybody makes DC motors in that power range. I am not awear of any single phase AC motor inverters, as far as I know you can only get 3 phase motor inverters. |
| mzzj:
--- Quote from: cleanworkbench on August 24, 2019, 07:39:50 am ---I,m looking into the idea of changing out the original single phase motor on my pillar drill to something controllable in variable speed. What type of controllable motor should i be looking at for this application. Thanks --- End quote --- Depends a lot on your drill size but I replaced the orginal weakling and POS belt drive in my drill press with 1.5kW 1500rpm 3-phase AC motor and VFD. Belt set to 1:2 speed reduction gives enough torque to drill 25mm holes or tap M16 to steel and max spindle speed of 2200rpm when VFD set to 150hz |
| mikerj:
As mzzy says, the way forward for variable speed machine toos is a 3 phase motor and a variable frequency drive (VFD). Small VFDs are now quite inexpensive and a suitable motor should be easy enough to find. |
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