 Straight line cuts  Rectangular work pieces  Boring/Radial Cuts  Axisymmetric work pieces.

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Presentation transcript:

 Straight line cuts  Rectangular work pieces  Boring/Radial Cuts  Axisymmetric work pieces

 Square material  Rough cuts  Round material  Rough cuts

 Ask about feeds/speeds for each machine and material  Or calculate them, and check with John/Adam or TA  Zeroing machines  Threading on Lathes  Automatic feed  Tool changing  Small, slow final passes increase surface finish  Climb/Down milling  Material Size limits  Take your time  Allot at least an hour or two  Remember clean up time

 Calipers: low precision measurement tool  Mic/mike/micrometer: High precision measurement tool

 Thousandths .001”  Basis of all machining measurement .0001” is called a tenth!  CNC  Computer Numerically Controlled  Pecking  Repeatedly making small drilling cuts  Turning  Machining on a lathe  Deburr  Remove rough edges

 Don’t leave drawers open  Don’t leave tools out  Don’t walk away without turning the machine off: E-stop  Close toed shoes  No loose jewelry or clothes, long hair tied back  Safety glasses  No gloves  WHEN IN DOUBT, ASK!

 Material considerations  Metal vs plastic vs wood  Type of metal  Machinability ▪ Soft is easy, hard is… hard.  Piece geometry vs workpiece  Material waste!  Square vs round  Cast vs billet  Complexity  Fillets and bevels are your friend!  Tolerancing

 Straight line approaches!  Interior cavities/ overhangs  Hardware lengths (bolt accessibility)  Interior right angles  Self questioning  How will I get a tool in to work this?  Standard size holes/threads  Ask a shop worker  Ask me  Practice and observe!

 MET/MFET  Have a casting lab  Additional machines  Michael Golden Labs (MGL)  AFL-Basement of ARMS  Lots of CNC automation  Plasma cutter