The purpose of TS-Aligner is not to machine wood to unrealistic tolerances. The goal is to provide the ability to align and adjust machinery accurately enough to avoid the need for test cuts.

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With that in mind, here's a quick chart of the stability of materials for your reference.

Coefficients of thermal expansion (per unit length per deg C):

Aluminum (type 6061-T6)	23.4 * 10–6
Stainless steel (type 400)	10.4 * 10–6
Super Invar (31% Ni, 5% CO, 64% Fe)	0.19 * 10–6
Cast iron	10.8 * 10–6
Quartz	0.55 * 10–6
Pyrex	3.2 * 10–6
Granite	7.2 * 10–6
Brass	19.0 * 10-6
Brick and Concrete	10.0 * 10-6
Diamond	1.2 * 10-6
Wood	*

*Wood changes dimensionally with temperature and moisture content. The amount of change varies by species.

 

 

 

 

 

 

 

 

 

Last revised: January 21, 2006.