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 | |||
== PCB Workflow == | |||
Check [https://docs.google.com/document/d/1JE3ZdaMEde4q_g6oxhJ-d6-frnd0xzpPRKbd6fkVK28/edit?usp=sharing link to google doc] | |||
== Fusion 360 settings == | |||
These files configure Fusion CAM for the machine. You might have to go into preferences and enable Cloud Libraries in General -> Manufacture and Machine Configuration under Preview Features. | |||
To use the files, upload them into the Asset project on the data panel. | |||
* CAM Machine file: https://myhub.autodesk360.com/ue28038b0/shares/public/SH56a43QTfd62c1cd968614b573aa1467047 | |||
* CAM Post file: https://myhub.autodesk360.com/ue28038b0/shares/public/SH56a43QTfd62c1cd96899db40293fa6a194 | |||
* Example tool libraries: | |||
** Hacklab fridge magnet (aluminum, 1/4 end mill, 1/4 chamfer/engraver): https://a360.co/2Sj9719 | |||
** Hacklab coasters (plywood, 1/8 router bit, 1/4 engraving, spot drill): https://a360.co/38jAwWt | |||
** Wood box (purpleheart, 1/4 end mill, 1/2 end mill): https://a360.co/2SiGgtN | |||
== 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 === | ||
* XY table from DNA sequencer | * XY table from DNA sequencer (AB 5500xl Genetic Analyzer) | ||
* 2.2kw spindle from ebay | * 2.2kw spindle from ebay | ||
* fill me | * fill me | ||
[[Category:Equipment]] | |||