HackCNC: Difference between revisions
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* Learn about cutting direction (climb vs. conventional cutting) and use the correct feed direction. Climb cutting takes more effort on the handwheels! | * Learn about cutting direction (climb vs. conventional cutting) and use the correct feed direction. Climb cutting takes more effort on the handwheels! | ||
* There is a chart on the mill cart for calculating the maximum RPM for a given tool bit size and material. The chart was generated using [http://w1n9zr0.github.io/feeds-speeds/mill-chart.html this calculator] ([https://github.com/W1N9Zr0/feeds-speeds source code]). | * There is a chart on the mill cart for calculating the maximum RPM for a given tool bit size and material. The chart was generated using [http://w1n9zr0.github.io/feeds-speeds/mill-chart.html this calculator] ([https://github.com/W1N9Zr0/feeds-speeds source code]). | ||
== General Workflow == | |||
Not sure what you need to know to start? | |||
Idea! -->3D model -->Does it (and the clamps needed to make sure it stays still while machining) fit in the machining box (xyz)? -->Availability/cost of raw material and cutting tools -->CAM/G-code generation -->Double-check that your depth of cut, feeds, and speeds are appropriate -->Cutting simulation to make sure the machine does not crash the cutter into something it should not cut -->Cut raw material to size (on bandsaw or other device) and where applicable ”square” corners -->Attach cutter and clamp squared raw material -->Put on your safety glasses, double check you don’t have any loose hair, clothes, jewelry that can get caught in the machine -->Turn on HackCNC power and load program in linuxcnc -->Make sure you and the HackCNC agree where 0 is for the xyz axis! -->Run the first pass in the air above the z axis with your hand on the e-stop and verify spindle coolant flow -->Cut your parts! -->Lather/rinse/repeat as necessary with other cutters until we acquire an automatic tool changer | |||
== Tips and Advice == | == Tips and Advice == | ||
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** Spindle speed encoder? | ** Spindle speed encoder? | ||
* 4th axis | * 4th axis | ||
* Automatic tool changer | |||
=== Component list === | === Component list === | ||