FGPG2

Fine Involute Gear Profile Generator 2 - with python3

Using on PC

• Install python3 and git
• Install some libraries :

conda install numpy matplotlib ezdxf pysimplegui

• Clone this repository by git
• Run :

python FGPG2.py

Build exe in MS Windows 11

• Development version of pyinstaller is needed because of matplotlib matching issue.

pip install https://github.com/pyinstaller/pyinstaller/archive/develop.zip
pyinstaller --icon=FGPG2.ico -w -F FGPG2.py
copy .\FGPG2.png .\dist\FGPG2.png 

Using on Android Device by Pydroid3

• Install Pydroid3 in PlayStore
• Install some libraries by Pip menu in Pydroid3 (numpy, matplotlib, ezdxf, pysimplegui)
• Install mgit in PlayStore
• Clone this repository
• Load FGPG2.py and run

Using on Linux

• Anaconda3 has Tk font problem.
• In pyenv Environment

pyenv install 3.11.3
pyenv global 3.11.3

pip install numpy
pip install matplotlib
pip install ezdxf
pip install pysimplegui

python FGPG2.py

UI Buttons

• Working Directory : Output files are saved here.
• Load : Load Inputs.dat and every parameters are set.
• Run : Calculate, Plot, Save plotted images, Save dxf, Save csv
• Toggle : Change output image
• Exit : Finish

Input parameters

• m : Module
• z : Teeth number
• alpha : Pressure angle
• x : Offset factor
• b : Backlash factor
• a : Addendum factor
• d : Dedendum factor
• c : Radius factor of edge round of hob (root)
• e : Radius factor of edge round of tooth (edge)
• x0 : Center position
• y0 : Center position
• seg circle : Number of contol points for pitch, offset and base circles
• seg involute : Number of contol points for involute curve
• seg edge r : Number of contol points for edge trocoid rounding
• seg root r : Number of contol points for root trocoid rounding
• seg outer : Number of contol points for outer arc
• seg root : Number of contol points for root arc
• scale : Scale factor for one tooth plot

Output files

• Inputs.dat : Parameters data for UI
• Result.csv : Gear spec data

• Result.dxf : dxf CAD file for one tooth

• Result.png : Gear geometry for whole teeth

• Result2.png : Gear geometry for one tooth

Ref.

• Calculate Gear Spec : Excel Sheet
• Calculate Gear Spec : Web

Thank you!