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1 Week AgoJohnHaine replied to a thread Is a 600W AC servo better than a matching asyncrounous single phase AC motor? in Machine DiscussionYou might be confusing power and torque. Using a large diameter holesaw really needs quite high torque but probably not much power. The ideal is a...4 replies | 707 view(s)
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1 Week AgoJohnHaine replied to a thread Is a 600W AC servo better than a matching asyncrounous single phase AC motor? in Machine DiscussionInduction motors have quite large diameter rotors and substantial stators so they are quite large. The "heatsink" doesn't contribute much in size. ...4 replies | 707 view(s)
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2 Weeks AgoJohnHaine replied to a thread TOSHIBA VF-NC3S VFD for sale (unused) in Classified Ads, Buy, Sell & SwapAnother method of reforming which I have used successfully is to connect a variac (variable transformer) to the normal mains input, switch on, and...3 replies | 4575 view(s)
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2 Weeks AgoLet me guess, you have your WiFi router in the house connected to the incoming copper line. As well as the cnc machine you are using a computer, ...3 replies | 1819 view(s)
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3 Weeks AgoLeave well alone IMHO.2 replies | 3351 view(s)
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4 Weeks AgoJohnHaine replied to a thread Please help identify these CNC machines found at my school. (should make PCBs) in General DiscussionThat could equally be an asset number, for example. If nearly 4000 units were made they would be better known. Can you take photo 1 again with...5 replies | 4717 view(s)
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4 Weeks AgoJohnHaine replied to a thread Please help identify these CNC machines found at my school. (should make PCBs) in General DiscussionThat does not look like a commercial product but something made as a prototype in a lab.5 replies | 4717 view(s)
About JohnHaine
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About JohnHaine
- City:
- Cambridge, UK
- Country:
- United Kingdom
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- Is a 600W AC servo better than a matching asyncrounous single phase AC motor? 1 Week Ago
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- Last Activity
- 1 Day Ago
- Join Date
- 24-09-2012
metalworking pillar drill...