Week 6: Material

Overview

We’ll look at the wide range of material that can be used on the machines.

 

Check in on CNC Assignment

Let’s quickly see where we all are on the CNC Assignment.  Show progress, hurdles, etc.

 

Material

The lathe (and 4 axis mill) allows for some “interesting” material choices.  Practically, any hunk of wood that can be properly mounted to the lathe, can be turned.  But some non-traditional materials can be used as well.

Please take a look at the Resources section for online material vendors.

 

Wood

You can buy wood at lumber yards, on-line, chop down a tree, or pick it up off the street.

Green Wood means that it was very recently still a growing tree.  It is still filled with moisture and typically easier to turn.  But a green log can not be properly finished until it is fully dried.  Green wood will shrink and possibly split/crack as it dries out.

Kiln Dried Wood has been professionally dried out.  It is usually very stable and can be fully finished without delay.

Wood can also be left to dry out naturally, but this can take a very long time.  Usually years.

Wood has a grain.  Where and how you cut up the tree will reveal different grain patterns.

 

Plywood – Furniture grade, Baltic Birch, has many plys and is a higher quality material.

 

Veneer – Thin slices of wood.  Sometimes translucent.

Bent Plywood – Plys are glued together over a form or mold to create curved forms.

 

Laminates

Gluing up multiple pieces of wood prior to turning is called laminating.

Wood to Wood

Woodmonkey

Finn’s Army

 

Plywood to Plywood

Plywood Vase

 

MDF to MDF

 

Misc Laminates

Vases Constructed from Pencils by Studio Markunpoik

 

Molding Plan – turned molding glue-up

 

Specialty Turning Blanks

Laminated Woodworkers

 


Walnut/Maple Bowl Blank

SpectraPly Americana

SpectraPly Confetti

Laminated Blanks

Wood and Acrylic

Stars and Wavy Stripes

 

 

Reclaimed Material

Reclaimed material had a previous life as something else.  Material with a story.  Table legs, bourbon barrel slats, old rafters and beams.

Lake Log Bowl

 

Bourbon Barrel Slat Glue-Up

 

Broken Table Legs – even cheap “wooden” furniture usually has hardwood legs.

 

 

Resin

Resin poured over other material can make for very interesting pieces.

Philip Moulthrop’s “White Pine Mosaic Bowl” (above, lathe-turned white pine encased in resin)

 

Plastic

Machinable plastic

Delrin

 

Cork

Cork is very soft and turns easily.

 

 

Corian – Durable material typically used for counter tops.  Machines beautifully, usually an expensive material.

 

Antlers

Typically used in smaller pieces like pens and handles.  Warning: Turning antlers smells like the dentist drilling a cavity.

Antler Pen Blanks

 

Mushrooms

The Fungus Among Us class has been experimenting with mushrooms as a building material.

 

Turning Denim

 

Recycled HDPE Plastic

 

Black Badger

Moonglow (Turning Moonglow)

Glow Disks/Domes

Fordite (Automotive Paint Build Up)

 

Cutting Boards

Great affordable source for delrin, hardwood, laminates, and bamboo ply.

 

For Next Week

Assignment

CNC Assignment is due.

 


 

Related Reading/Viewing

Artist Uses Algorithms to Carve Hyperdetailed Patterns into Plywood 

A Splintered History of Wood

ITP Fab Resources Section