Guilloché on a Myford Lathe скачать в хорошем качестве

Guilloché on a Myford Lathe

Guilloché engraving with a pumping setup for my Myford Lathe. I am using this to engrave bands for the Irish flutes I make. In this setup the carriage is locked down and any play in the cross slide is eliminated by the gib screws. The compound slide is removed. Attached to the cross slide using the t-slots is a sandwich of two plates with 3 linear bearing slides between them. The lower plate is fixed while the upper plate can move left and right with about 20mm of travel, which is more than ample. A spring loaded bar attached to the top plate supports the Rubber or Touch which bears against the Rosette. The spring tension is adjusted with the tail stock spindle. A simple slide attached to the top plate from an old 109 Sears Metal Lathe supports the cutter, which is itself mounted on a linear bearing slide. The positioning is to get the cutter at the correct height. This top slide is used to arrange each cut adjacent to each other. Here I count 3 "ticks" for adjacent cuts that are all of the same phase, and 6 "ticks" when phasing cuts. The work is held on a MT2 expanding arbor which is underneath an adapter made from blackwood. The Rosette is attached to the faceplate which is used as a simple handwheel. Note that the position of the slide rest - here at either 0 or 3.2 on the dial indicator - is used for phasing. This allows the cut to start at either the peak or the valley, with respect to adjacent cuts - and everywhere in between. This arrangement is surprisingly robust. Different pumping rosettes, spacings, phasings, etc. give a wide array of results. The cutter I am using seems to self bottom and doesn't need a guide. It cuts a line about half the width of a standard Guilloché cutter and this seems to work fine on the brass as well as silver. More results can be seen on my Facebook pages.