Quantity   Component name
1 × NEMA23 4:1 Planetary Geared Stepper Motor $86 on Amazon - https://www.amazon.com/gp/product/B00WAUZ1WU
1 × Shaft Coupler 12mm to (Auger shaft Diameter) $12 on Amazon - https://www.amazon.com/gp/product/B078VV4H8D
1 × 300W 120VAC Band Heater 1" Dia $6 on Amazon - https://www.amazon.com/gp/product/B01H01QZU0
2 × Threaded Thermistor Cartidges 100kOhm $8-20 on Amazon (cheaper is possible but I like using the ones with cartridges and connectors already installed) - https://www.amazon.com/gp/product/B07B3ZYBTM
1 × 1/2" to 1/4" Brass Reducer $3-5 Local Hardware Store
1 × 1/4" MNPT to 1/4" Hose Barb (1/8", 3/16", 1/4", and 3/8" hose barbs can be used for varying nozzle sizes) $3-4 Local Hardware Store
1 × Aluminum Hot End Block $7 for 5-pack on Amazon - https://www.amazon.com/gp/product/B01D8D54OM
1 × 6-32 or M3 bolt, 3/4" Long A few cents, Local Hardware Store. This holds the hot end in place against the nozzle and makes it easy to remove. You will need to tap threads into the hot end for this, so the size just has to match the tap set you have.
1 × 24VDC Cartridge Heater $10 pack of 5 on Amazon - https://www.amazon.com/gp/product/B07FS4Q5SB
1 × Anderson Powerpole Connectors (optional) $12-40 kits on Amazon. Not necessary and requires crimper, but I like them for quick disconnect power. I used white/black for the AC connection and black/red for the DC connection, so I don't confuse them.
1 × M3 or 6-32 tap set $11 kit of 6 on Amazon - https://www.amazon.com/dp/B016FMEZSO/?ref=idea_lv_dp_ov_d
1 × 7 1/2" x 9/16" diameter Wood Auger Bit $5-15 Local Hardware Store
2 × 1/4" x 20 x 8" Carriage Bolts $2-3 Local Hardware Store
1 × 3" PVC Wye $6 Local Hardware Store
2 × 1/4" x 20 Threaded Knobs $2-4/ea Local Hardware Store
4 × 1/4" x 20 Bolts, 2" Long $1-2 Local Hardware Store
4 × 1/4" x 20 Nuts $1 Local Hardware Store
1 × 1/2" Black Iron Pipe Flange $3-5 Local Hardware Store
1 × 1/2" x 4" Stainless or Brass Nipple $4-6 Local Hardware Store