Do you remember the sketch-o-graph?

This came up on a social networking site. Firstly as a question, do you remember the real name for the gadget for copying drawings/diagrams and scaling up or down. This was an invaluable tool to me in my school days when drawing maps. A precursor to CAD and the photocopier! This “toy” however dates back to 1603 and an invention called the Pantograph!
After a bit of research I found this site on how to build one.

This led me onto thinking that there may be a number of gadgets like this, derived from original designs that are centuries old. With my recent posts on manufacturing and turning this on its head. I am working up an STL file of one of these which I will test and then upload to enable anyone to have one of these great inventions to use. ff they can print it out for themselves on a 3D printer or just provide the cad plans to print out on a normal printer/plotter and cut out on your own medium.

Thanks to Robert Grant for the inspiration for this entry.

Advertisements

About Shaun Farrell

I have been involved in the construction sector since 1986 and over the years I have seen things change dramatically. Much of the change has been directly as a result of technology. This blog will be about the key combinations of People, Process and Technology. Any views expressed here are strictly my own.
This entry was posted in Education, Tools and tagged , , , , . Bookmark the permalink.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s