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moldmakingtechnology.com 37 table size was generous, it was not enough to handle the very large and complex molds that Model Die was asked to quote. "The Parpas 30 has a Z travel of 47.25 inches and a table size of 118 inches by 102 inches," Neibarger says. "The other CNC mill serves us well, but having that extra few inches on the Z travel can make a difference in whether we are able to set up and machine a large, detailed workpiece." For example, she says the company recently used the Diamond 30 to machine what she believes is its largest mold-half to date, measuring 85 inches by 110 inches by 27 inches thick. Thomas Hagey, operations manager and sales profession- al at Parpas America, explains that the Diamond 30's ability to machine large molds with very deep cavities can be attrib- uted to its orthogonally-designed Model TOE-29 head. "The head's A-axis indexes every 0.001ยบ, and both the A and C axes can be used as machining axes," he says. "Additionally, the TOE-29 has been designed to drastically reduce the length of tools when machining in deep cavities. In other words, the end of the TOE-29's head has been designed with a longer snout compared to the same feature from many other manu- facturers, thereby allowing for the use of much shorter tools." "Getting this machine enabled us to land new business that we would not have had otherwise because of the timing the customers needed it in, and our lack of capacity to take such large molds," Monica Neibarger says. "We basically doubled our capacity for tools that are 24 inches and thicker with a lot of contouring, and we have greatly reduced the need to outsource work to other shops." Greater Reach, Stability Reduces EDM Neibarger says that Model Die customers have been approaching them with an abundance of deep, contoured cavity work that required a lot of engraving along those contours. For this type of work, it was challenging to find an EDM machine large enough to allow use of the special set- ups required for reaching the deep areas of the cavities. For example, after machining, tight areas (and especially angled surfaces) would be left steel-safe, and then the company would have to build special beams from which the electrodes If machines were to decide... ...they'd love the Tebis NC programs! Tebis CAD/CAM software packages provide complete solutions for all technologies, innovative software structures, low-cost access and specifi c process solutions to bring you unheard-of productivity! HIGH-QUALITY EFFICIENT RELIABLE Manufacture high-quality molds and dies faster. Tebis America 400 E. Big Beaver Rd., Troy, MI 48083 248.524.0430 Find out more at www.tebis.com We basically doubled our capacity for tools that are 24 inches and thicker with a lot of contouring.