This is a Crude Costing Formulae based on my Ideas which is called "Gut-Feel Thumb-Rule Methodology." Even Though i am probably the only follower of this popular System, I am sure it is worth a casual Look.

Sales Qty per/month	Type	Costing
1 - 4	Custom Design	RM * 4.8 = SP
5 - 15	Pilot Production	RM * 3.2 = SP
16 - 100	Slow Moving	RM * 2.2 = SP
101 - 1000	Manufacturing	RM * 1.6 = SP

Raw Material Cost	45
Production Cost	15
Servicing Cost	10
Marketing Cost	10
Research	10
Reserves	05
Employee Fund	05
Grand Total	100

RM - Raw Material Cost
SP - Selling Price to Distributor

Reserves are for Dry days, Employee Fund is to reduce Attrition and Layoff.

First have a look at this How to Build a Robot a BeetleBot. This sparked the long lost memory of a book i read around 35 years back. My age was in single digits. This was when i had neither an idea of electronics or could afford any parts.

I had built many physics projects like weighing scale, gramophone, telegraph system, crystal radio. I will try to explain these later. Calling bells, gears and magnets from the flea markets my source of electricity & magnetism. 


I read a hobby book from UK for children. It was a Beetle Car Bot, with four wheels and 4 light sensors. It could be LDR or photo-transistors, i do not remember.  The light sensors were at the four corners of the car. The maneuvering was by variation in the speed of each wheel. It was based on germanium transistors mostly.

Four large lamps like 40W, had to be mounted on the ceiling, at the four corners of the room. By turning on and off these lights, this bot could go anywhere in the room. The whole book with pictures was dedicated to one bot and how-to build one.

Now that we have PIC and AVR; we can use Dimmable LED Lightning arrays to guide the bot. The challenge is in the mechanics of the bot, we have to forget that we have wireless for some time. Try this out.

Electronics Australia - EAT - Files

"Here you will find a wealth of electronics-related software, covering everything from PCB layout through to loudspeaker design suites.

Electronics Australia and EA Today are no longer being published. SILICON CHIP is now the only electronics magazine published in Australia. It is available each month from your newsagent or directly mailed from the publisher by subscription."

• Technical Software - electronics-related files.
• EA Project Software - software for one EA projects

Electronics Australia and EA Today

Electronics Australia was one of the longest running and most respected electronics publications in the world.

Electronics Australia & Silicon Chip Magazines

Dave now supports the only remaining Australian electronics magazine - Silicon Chip.

This is a Linear Dynamo LED Torch which uses a SuperCapacitor to store the energy. Easy to repair and maintain if necessary.





Forever Flashlight

It uses no batteries and requires only the single LED included. You can even leave the flashlight unused in your car's glove box for years and you'll always get that all-important light when you need it most. Forever Flashlight lll pays for itself quickly by saving you the cost of batteries and bulbs.

ExcaliburProducts.com - 21785 SW TV Hwy, Suite Q, Aloha, Oregon 97006 USA

See a Article about that -  Forever-Flashlight

We also have another Craft Site here - Electronic Crafts - Shakelight

How to make your own hand powered shake led flashlight. Make and Shake, Light up your Loft.

Long ago, i was making and supplying some hybrid electronics to some firms. The soldering and handling required some tools and custom jigs which were designed. As the product was mass produced, some tools for managing and working on Tiny PCB's and parts were not available in the market.

So a affordable solution was created, the jigs were supplemented by surgical tools. These are the Clips and Tweezers that a doctor uses when he conducts an operation.

Let use see one here an Hemostat Clamp and other tools at P J Tool and Supply

Call it Forceps, Tweezers or Pliers. These tools, both the bent/arched/curved one and straight are useful.

There could be many more, visit a dentist too. check up your molars and when he is away, browse around and figure what's useful for electronics. Do not touch any tool or try them, remember he is a Dentist.

When you go to a Surgical Supplies Store, do not disclose the purpose of the visit. Pretend to be a Student of Zoology.

Buy some Filter Paper, capillary tubes and a spirit lamp as well. These can find a lot of use in the ultimate quest for the God Particle. Beat the Swiss to it.