-Parts- --McMasterCarr-- - 3/8-24 Brass rod (98813A031 $13.04 for 24") - 3/8-24 Stainless Steel threaded rod (93250A150 $16.19 for 36") - Thick brass 3/8-24 nuts (92676A455 $5.20 for 10) - Thin brass 3/8-24 nuts (92174A663 $8.71 per 25) - 3/8" x 3/4" Aluminum bar stock (89215K483 $37.73 for 36") - 4mmOD, 2mmID Teflon tubing (5557K32 $1.53/ft) - 4mm tube to M5 tube fitting (7880T368 $1.65 each) - 40W 12V ceramic heater (yes you can use a resistor if you really want) buy on ebay or from 3d printer supplier - axial thermister or thermocouple Tools: - Metal Lathe - Center - Drill bit #77 (or whatever orifice size you want) - 4mm cobalt (or carbide) drill bit (29355A64 $3.14 each) get a few - 4mm sharp tipped drill bit (for brass) (27465A413 $4.56) - 5/16" drill bit - 4mm 2 flute end mill (4 flutes is fine) for brass (29605A22 $14.18) - M5x0.8 tap (for pneumatic fittings) (26475A38 $8.68) - 3/8-24 tap (for aluminum) - drill bit for thermister/thermocouple