The Patternless® Process was invented and developed by Cti.

It is a technique whereby moulds are directly machined out of blocks of sand. This proves to be a very cost effective way of producing one-off or small production run castings, since it does not require the manufacture of patterns and core boxes. The benefits associated with the process include:

  • reduced time to manufacture
  • reduced total manufacturing costs
  • castings of high integrity and dimensional accuracy
  • appropriate surface finish and enhanced letter definition
  • suitable for castings of all sizes and weights
  • opportunities for one-off and small series production
  • no pattern storage or maintenance costs

The features of Cti’s in-house Patternless® system include:

  • working envelope of 2.6 x 4.0 x 2.0m;
  • rough machining of a mould cavity equivalent to one tonne casting in 30 minutes;
  • machining accuracy of ±0.01mm;
  • uses specially developed cutters with minimal wear;
  • uses block of sand (up to 10,000kg) readily made in any foundry from new or reclaimed sand.

Case Studies:

Patternless® Process Case Studies:

Additional Information

For further information on Cti’s Patternless® Process, please contact