BuildYourCNC
Coupling Hub - 3/8" Bore
Coupling Hub - 3/8" Bore
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These hubs will typically be used on motors with 3/8" shafts. Note: To create a complete coupling set, you will need two hubs (one for the motor shaft and one for the lead screw end) and you will need one spider. These items are only offered to allow for any configurations that is not offered for rigid couplings.
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Questions & Answers
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What are the outside dimensions of the Laser Mirror Mounts?
The outside dimensions for the laser mirror mounts found here: https://www.buildyourcnc.com/item/Laser-Component-Mirror-Mount-20mm and here: https://www.buildyourcnc.com/item/Laser-Component-Mirror-Mount-20mm Are 55.88mm (2.2") x 55.88mm x 44.5mm (1.76") thick. This includes the set screws that protrude on the back and the mirror holder that protrudes on the front. Not including the protrusions, the thickness is 22.23mm (0.875")
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i have a breakout usb controller iam using a spindle output to active a relay 5V but it didnt work.... whats the problem, what else i need to active that realy 5v 10A?
To control a spindle using the USB CNC interface, you will need a relay board that contains a transistor that can activate the relay with a power source with enough current that can activate the relay. This video explains all of the information you will need to develop this relay circuit: https://www.youtube.com/watch?v=PJO_XoLL6lQ&index=44&list=PLE72E4CFE73BD1DE1