Skip to main content

New sewing machine

New equipment acquired: April 13, 2020

Big excitement! I have 1 mini manual sewing machine, and have 1 mini automatic machine. I also had a 2nd Hand Fong Wah desktop type mini automatic sewing machine. Unfortunately, they all failed on me, or I failed to operate them. They can't sew.

I tried fixing the the Fong Wah one with an experienced sewer, but in the end I only broke it. I realize that I want a more serious machine. It's a waste of time.

This, the butterfly, I heard is a quite famous home/consumer brand since 1919. I bought this JH8330A from Taobao for RMB$7XX.

The English manual is not bad, actually it is good. I have a lot of hope on this machine.

Tonight, I have learned the basics of machine sewing on this butterfly.
- thread the upper thread, lower thread
- wind a bobbin
- sew forward and reverse

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.