JohnHaine
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10 Hours 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 | 159 view(s) -
10 Hours 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 | 159 view(s)
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6 Days AgoJohnHaine replied to a thread NEW MEMBER: Denford Triac converted to UCCNC in New Member Introductions...or there!4 replies | 745 view(s)
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6 Days 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 | 745 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 | 1494 view(s)
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1 Week AgoCould you post a link please?12 replies | 1494 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 | 1494 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 | 1494 view(s)
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2 Weeks AgoWhat form does the probe take?12 replies | 1494 view(s)
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2 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 | 1463 view(s)
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2 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 | 1463 view(s)
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2 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 | 1463 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 | 945 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 | 1463 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 | 1463 view(s)
About JohnHaine
Basic Information
About JohnHaine
- City:
- Cambridge, UK
- Country:
- United Kingdom
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- Total Posts
- 348
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- Last Post
- Please help identify these CNC machines found at my school. (should make PCBs) 10 Hours Ago
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General Information
- Last Activity
- 9 Hours Ago
- Join Date
- 24-09-2012
My Build - I blame you lot for...