Over this past weekend I put together my annealing machine. I made the same one everyone has online, a version of skips annealing machine. Here is the parts list: 1PC CNC SK8 8mm Step Motor Linear Rail Shaft Guide Support Bracket Bearing Set $1.52 1PCS 12mm SK12 Linear Rail Shaft Guide Support Bracket/Bearing CNC Step Motor $1.99 DozyAnt 4 Feet Propane Distribution Tree Extension Hose Assembly 1"x20 Female $13.59 Cake Pan Round 5 x 2 Inches by Fat Daddio's $7.99 NEW Great Planes Set Screw Prop Adapter 8.0mm to 3/8x24 GPMQ4945 $6.99 X2=$13.98 High Torque 12V DC 25 RPM Gear-Box Stabilivolt Electric Motor Replacement $9.59 X2= $19.18 DC 6-30V 12V 24V MAX 8A Motor PWM Speed Controller With Digital Display Switch R $4.47 X2= $8.94 1" x 2" x 12" Long x 1/8" Thick 6063 T52 Aluminum Angle-->1" x 2" x 1/8" Angle $9.39 BernzOmatic Basic Use Brass Pencil Flame Propane Torch Head - UL 2317 $12.50 Hillman 3-ft x 1/4-in Plated Steel Metal Round $3.35 Numerous small bolts, washers, and nuts to put it all together, from Lowes. $8 Total cost: $100 give or take a few dollars. I had an old computer tower with a power supply to use as the body and the power supply to power the unit. I had a piece of 5/8 plywood I used for the auto feeder drum and auto feeder back plate.