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IMS51 series ac bipolar drivers are CE compliant to meet safety protocols when powering ultra high torque step motors. Output current can be selected as 1.4 A/phase or 2.8 A/phase, depending on requirement. With basic step division of .72[degrees] full step at 500 steps/revolution and .36[degrees] half step at 1,000 steps/revolution, driver suits NEMA size 17, 23 or 34 5-phase step motors. Requiring no power supply, units operate from 120 or 220 Vac.

Axial chip thinning is a way of "cheating," sort of, to achieve a higher feed rate. At least it seems like cheating. Under the influence of chip thinning, the chip thickness no longer equals the advance per tooth. Instead, the chip is smaller-meaning the rate of advance per tooth can increase.

Carlton Die Castings, a Scottish die casting and CNC machining specialist, provides quality and service to ensure that castings arrive on time every time with no rejects

Rapid manufacturing and prototyping specialist, Ogle Models, has introduced a flame retardant plastic to the range of materials that it uses to produce components for customers. Designated PA 2210 FR, the powder is produced by EOS for use in its laser-sintering machines, of which Ogle operates three, two of which were bought in June 2008 as part of a £1 million investment.

Jonathan Schwartz has found a way to turn math concepts into real problems. A math teacher at Colfax High School for 13 years, Schwartz believes students learn not only in a traditional classroom, but also when they work with their hands.