JohnHaine
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3 Days 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 | 255 view(s) -
3 Days 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 | 255 view(s)
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1 Week AgoJohnHaine replied to a thread NEW MEMBER: Denford Triac converted to UCCNC in New Member Introductions...or there!4 replies | 822 view(s)
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1 Week AgoJohnHaine replied to a thread NEW MEMBER: Denford Triac converted to UCCNC in New Member Introductionshttps://www.forum.cncdrive.com/ Maybe more likely to find help here.4 replies | 822 view(s)
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1 Week AgoThe product description says: "Normally closed specification technical parameters Output mode: BNC (normally closed)" Which implies that it...12 replies | 1549 view(s)
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2 Weeks AgoCould you post a link please?12 replies | 1549 view(s)
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2 Weeks AgoMost of the cheaper "professional" touch probes are based on the original Renishaw design (the basis of their present success), which essentially has...12 replies | 1549 view(s)
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2 Weeks AgoSo I think you mean the probe is a rod of a known diameter which used to be connected to ground through the bearings but is now isolated because the...12 replies | 1549 view(s)
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2 Weeks AgoWhat form does the probe take?12 replies | 1549 view(s)
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3 Weeks AgoJohnHaine replied to a thread which spindle motor will work in Milling Machines, Builds & ConversionsRight, so appears to be a PM type with an inbuilt tachometer. I'm not sure what the K1 and K2 terminals are for. Do you mean 0-10V from a pot or...11 replies | 1521 view(s)
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3 Weeks AgoJohnHaine replied to a thread which spindle motor will work in Milling Machines, Builds & ConversionsAn important question is whether the original motor is a wound field type or permanent magnet. My Novamill is a PM type. How many wires go in to...11 replies | 1521 view(s)
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3 Weeks AgoJohnHaine replied to a thread which spindle motor will work in Milling Machines, Builds & ConversionsWell as I said a DC motor has better low speed torque. Or a modern induction motor with a constant torque VFD which adjusts the drive voltage and...11 replies | 1521 view(s)
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3 Weeks AgoSupported by what? Encoders are quadrature almost by definition if you want to know the direction as well as magnitude of movement. What do you...1 replies | 962 view(s)
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3 Weeks AgoJohnHaine replied to a thread which spindle motor will work in Milling Machines, Builds & ConversionsWell the original motor is probably a Baldor DC commutator type as used in other Denford machines - like my little Novamill. Max spindle speed is...11 replies | 1521 view(s)
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3 Weeks AgoJohnHaine replied to a thread which spindle motor will work in Milling Machines, Builds & ConversionsWhat happened to the original motor?11 replies | 1521 view(s)
About JohnHaine
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About JohnHaine
- City:
- Cambridge, UK
- Country:
- United Kingdom
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- Please help identify these CNC machines found at my school. (should make PCBs) 3 Days Ago
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General Information
- Last Activity
- 5 Minutes Ago
- Current Activity
- Viewing Thread FOR SALE: CNC Screws steppers drivers bob For Sale
- Join Date
- 24-09-2012
CNC Screws steppers drivers bob...