b'part sets the length dimension.Thepart, using four clamping pointshex pins. One hex pin at 0 and an-hex pins are made from 12.7 mmworks well. Use two hex pins toother at 90 and one edge clamp at (0.5") steel hex stock turned to 12.7set X and Y position and two edge180 and another at 270 will do it. I mm/12.675 mm (0.5"/0.499") dia. onclamps to push the part against thehope that this helps.CTEone end. They fit into 12.725 mm (0.501") dia. reamed holes on the fix-ture. (See Figure 3.) The hex head pins are free to turn in the holes. This en-sures that the part is clamped squarely against a hex face and there is an ad-equate clamping surface against the part. Using this method, marks areSpeed - Precision - Process reliabilitynot made on the part edge. If round dowels were used, they would make a mess of the knife edge. hexalobular socketsThe clamps are fixture clamps by Mitee-Bite Products LLC in Center Ossipee, New Hampshire. These clamps have a brass nut mountedGREAT PERFORMANCEon a steel threaded bolt and are available in a variety of sizes. In this Short machining time application, the size with 3/8"-16 High prole precisionthread is used. The clamps have Excellent surface quality an eccentric arrangement, so when Minimal burrsthe bolt is turned with a hex wrench,ALL YOU NEED ISthe nut moves radially on the bolt, clamping or unclamping the part. 1 combined drillThey are quick and easy to use. - predrilling This type of fixture using edge- chamferingclamps and hex head pins has the- deburring advantage of positively locating 1 micro endmillhorizontal dimensions. This way also can be used to clamp round or DiameterT4 to T30irregularly shaped parts with accu-racy and repeatability. For a round about the author Brandt Taylor is owner of Berlin, Massachusetts-based Taylor Engineering, a machine shopMikron Corp. Monroeand manufactur- Monroe, CT 06468er of lathe chuck jaws. He [email protected] reached at 978-838-2979.www.mikrontool.comFor more information, visit www.stopjaws.com.ctemag.com/cteguide.com15MachinistsCorner.indd 15 8/18/20 9:15 AM'