Materials…Size…Shape

• Resins

  • Cibatool, Ciba-Geigy epoxy resins
  • Allied Signal EXactomer, DuPont SOMOS

• Size - depends on the size of the vat.

  • SLA 250 10” x 10” x 10”
  • SLA 500 20” x 19” x 23.2”
  • Big pieces can be made in a modular fashion

• Shape

  • Any shape fitting in the dimensions is possible

• Build Time

  • 24 hours depending on the complexity, precision and size

• Each layer is .004” thick

• Accuracy is between .0005” and .001”

Costs of SLA Machines

• SLA machines are not cheap
  • The SLA-190 costs $105,000
  • The SLA-500 costs $420,000
• The resin costs $300 to $350 per gallon
  • To make a 6 in3 , it would take $25 worth of resin
• The laser is also very expensive
• Most parts can be built and cured in under 24 hours