Torch Table Design Rationale

See Torch Table for development work.

Basic Design

• 6" wide by 1/4" u-channel frame
• Gear rack drive, 20 degree gear rack, 1/2" wide, 20 pitch (20 teeth per inch)
• 1" pinion gear, rides directly on rack
• z-axis of torch has manual adjustment
• Sacrificial slats may be used, or another workpiece table
• 495 in oz Stepper Motors from xylotex, 1/4" shafts
  • About 31 in lb torque, or 1 G acceleration for a 60 pound gantry with 1" diameter driver gear
• Gantry weight -

X Axis Detail

Gantry detail