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      email: tony@lathes.co.uk
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      Multifix Quick-set Toolholders



      Multifix, a Swiss Company, are competitors to, amongst others, the well-known British design of "Dickson" quick-change toolpost (with its dovetail clamping system), the American "Tripan, that direct copy of the Multifix, the SPI-made Multiquick, and three out-of production models: the German-made Drehblitz (similar in function but not interchangeable with the Multifix); the German Parat (this was able to take 4 toolholders at once) and the expensive "Bergstrm" - whose details can be seen on the ronmaskiner lathe page.
      Able to be traced back to the "
      Multi-Swiss", a design by a French company, the Multifix has now been copied (rather effectively) by the Chinese and is offered at a much lower price. However, the genuine Multifix is still a sought-after accessory - though the Chinese toolholders do interchange onto the central block without trouble. Original Swiss-made units are always stamped on the side of their body "Original Multifix Type B J.F. Minder Geneva Made in Switzerland" - even the ones in found America stamped on their top face with "Enco" (an importer and distributor of machine tools and accessories) carry the same inscription. Unique in offering 40 pre-set rotational positions, like all quick-set toolpost the Multifix allows an individual toolholder to be adjusted up and down on the main block until the cut is perfect - and then locked at that setting. Providing that the two are kept together, every time the holder is dropped back into position, the tool will align perfectly at its original height. In an ordinary repair workshop it is usually for around 6 holders to be in constant use, together with a few extra in hand for one-off jobs.
      Made of "Chrome steel" the units are case hardened with the serrated teeth ground in. A variety of sizes is offered - from A, through A, B, C and D - and a number of different toolholders including: standard types with parallel slots; semi-circular and circular to hold round tools with adapter bushes to take Morse taper fittings; V-bottomed holders to take round boring bars; off-set holders; parting-blade carriers and, a type that appears to have been unique to the Multifix and Drehblitz, holders with a quick-withdrawal mechanism to speed up screwcutting. As an addition to the chart listing the sizes and types of toolpost and their associated holders, the makers also include data concerning the maximum dimensions of a lathe's top slide and the power of the lathe (from 1 h.p. to 30 h.p.) - thus enabling a customer to choose the most appropriate unit. Details of sizes, fittings and holders can be seen in a chart towards the bottom of the page..

      A twin Multifix set-up in use on a lather fitted with hydraulic copying

      Toolholder Type J. This has a parallel bore and can also accept - depending upon its size - parallel outside bushes (Type L) bored with Morse tapers from a No. 1 to a No. 5

      Toolholder Type J equipped with a direct-fit boring bar



      Bar-holder Type H. The open side allows a rapid change of fitting and is available with bore sizes from 12 to 70 mm (1/2" to 2.75")

      Standard toolholder Type D.  Made to accept tools from 12 to 65 mm deep (1/2" to 2.5")

      Type FE holder equipped with a manually-operated quick-withdrawal (back-off) mechanism. A holder for internal threading is also available, the Type FI. Retraction and forward motion of the tool are achieved by an eccentric bolt that positively thrusts and locks the assembly against a hardened stop. For external threads the unit was originally supplied with a IKOMET brand tangential cutter that allowed the threading tool to be swung into the lead angle of the thread to be cut.  For internal threads the tool location is by a wedge-shaped clamping device

      Special adjustable tool-change holder with a miniature D.T.I.  as used on a Cri-Dan  screw-threading machine

      Special adjustable tool-change holder with a miniature D.T.I.  Being used for boring on a Cri-Dan  screw-threading machine



      email: tony@lathes.co.uk
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      Multifix Quick-set Toolholders
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