User:McNeight

Hardware

Clonedel plastic parts from Metrix Create:Space with SAE / Imperial vitamins, resulting in a near duplicate of an SAE Prusa Mendel with a Wade's Geared Extruder

Alternating between the johnnyr branch and tesla893 branch of Tonokip, as well as the main branch of Teacup Firmware. Will try Klimentkip in the near future.

I'm also experimenting with a dev version of RepSnapper.

For use with firmware as well as software:

Overall
- Stepper motors are 1.8° per step or 200 steps per revolution
- Driven by Pololu A4983 drivers with sixteenth-step settings
X & Y axes
- 8 tooth pulley using XL drive belt
  - (steps per motor revolution) ÷ (drive belt teeth per revolution) ÷ (belt pitch OR distance between belt teeth) = steps per millimeter
  - 200 (without microstepping) ÷ 8 ÷ 5.08 mm = 4.921 steps per mm
Z axis
- 5/16"-18 threaded rod
  - (steps per motor revolution) ÷ (pitch of the thread) = steps per millimeter
  - 200 (without microstepping) ÷ (25.4 ÷ 18 or 1.411) = 141.732 steps per mm
Extruder
- 5/16" hobbed bolt
  - (steps per motor revolution) × (gear ratio) ÷ (pinch wheel diameter × π)
  - 200 (without microstepping) × (39 ÷ 11 = 3.545) ÷ (7.08 × π = 22.242) = 31.880 steps per mm
- 3mm feedstock and a 0.50 mm nozzle