FoamCore is often the go-to modelmaking material for designers and architects. But there are times when you may opt for matboard/chipboard/cardboard due to budget, availability or color. These materials obviously don't behave in the same way as FoamCore, but you can still get good results if you follow some basic principles.
In this video industrial designer Eric Strebel runs you through those basics, offering some great tips along the way: How to induce tension into the structure, how to apply glue to thin edges precisely, the order in which you should trim to fit and more.
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Retired now, but have worked with simple model building for years using card board materials. Items such as small architectural models, topo layouts, simple products, etc.
Loved the little video you put together. Stumbled upon it while looking through mail. Core 77 sent it to me.
I used a variety of card boards for various things. Chip, Foam, Corrugated, Post Card, etc. You always had to have a sharp #11 blade on hand, and a utility knife. Towards the end, I liked the Rotary Knives they came out with, that Seamstresses Used. They cut card board with out tearing. Rather they 'pushed' the material down for a cleaner cut. I also kept fresh Art Gum erasures on hand for cleanup of layout line work. And, I kept Manicurist's 'Emory Boards' on hand for some light sanding of edges. I also kept 'Gem Blades', Double Face Tape, and Colored Papers on hand, as well as an assortment of adhesives to use depending on the need.
One method I used for building simple 'corners' though, was the "Score & Fold" method. I even had a simple "Brake" that I would use in some cases, to make a clean Bend.
Score & Fold, one simply cuts the material lightly 'half way' through. Then you "Bend" it. This eliminated a lot of glue ups and sped production time up. You just had to compensate for the offset of the angle during layout.