Skip to main content

My first post

So, I have decided to start a blog on my creations.  I feel I should write a bit here.  


Why?

Since teenager, I secretly wished I could be an inventor.  My first ever worked invention, to my memory, was a wearable band for the hand, for me to put colored pen/pencil/highlighter on the back of my hand. I was in university then.  Through all these years working, I still worked through some of the ideas to a product. It would be great to show these ideas to others while doing documentation or log some sort, like an invention journal (ha ha). 


What?

They are not all inventions, perhaps most of them are creations, really.  Some maybe just ideas, some maybe just outstanding problems I need to rethink and come back on later. 


When?

I shall post...When I have new ideas, or a new creation, or maybe when I have a new tool. 


Who am I?

I am working in an information technology service and solution provider company in Hong Kong.  I believe in creativity, where Imagination and Inspiration set me free.  Solving problems is challenging, interesting, and rewarding. Acquiring new skills enlightens me, as it puts me to go on rides of adventure, where the adventure can only be bounded by imagination. 


Of all the skills I have...

  • a bit of programming in java, python
  • Basic Leather-working
  • Preliminary woodworking
  • Piano, ukulele

Comments

Popular posts from this blog

Python script - pop-up reminder based on data from Excel

Completion date: December 17, 2018 Changes to the script (Dec 14 2018): 1. Used Date format to compare dates.  2. Show message for update AR if the date is overdue and due today. Changes to the script (Dec 17 2018): 1. Corrected the ws.max_row+1 to ws.max_row. 2. Changed to loop from bottom up (so the the newest records gets checked first) =========== The script =========== #! python3 -- Modified on Dec 17 2018 import openpyxl import tkinter.messagebox from datetime import date import os #Get the workbook, worksheet file = "AR.xlsx" wb  = openpyxl.load_workbook(file) ws  = wb['Sheet1'] #Iterate through the rows of column "Next update on" = Column D = 4, from bottom up (the newest record to oldest) for i in range(ws.max_row, 2, -1):     next_update_datetime = ws.cell(row=i, column=4).value     if (next_update_datetime is n...

Gear investigation: Banbao Lego crane

Completion date: May 16, 2020 1. Gear ratio: 8:24:40. The bottom wheel cranking the string at speed (8/24)*(24/40)=0.2x speed of the motor. 2. The top two wheels looks like pulley system to me, but I am not sure about the spinning speed of the top wheels, the first top wheel is slower than the bottom wheeler, that I observed. 3. The beginning of the bottom wheeling action is pulling less string because the circumference is small (less string winded).  So it pulls the string faster gradually as more string is added to the circumference. 4. Note I added the rewind crank on the other side of the motor. This is the final instruction of the Banbao booklet. All the builds have been fun for me, I got to know more about gears now (though still primitive). My thoughts towards the gear mechanism is that it is not as efficient as I thought it would be. - requires many gears to do 1 simple thing - gear design has to match the many requirements of the space, dist...

Fixing of retractable badge holder

Completion date: October 2, 2021 My retractable badge holder’s string is thinning and would be broken soon.   I cut it short.  Pull the rotten part out with a tweezer. Insert the string from this end.  Tie a knot.   Reinstall the silver triangle back.