Re: K 700S T slot nut
¿ªÔÆÌåÓýNelson,I don¡¯t believe I¡¯ve seen you post about your intended use or need for a T-nut. ?That information would be helpful in guiding you. But I think you¡¯re over analyzing this and getting confused in the process. ?I recommend you get your machine and the accessories that go with it and try it out. ?If you are lucky, the short crosscut fence will go on/off/on the machine and consistently register square and all this stuff about T-nuts and bushings can be ignored/forgotten. If you ordered the 1100mm short crosscut fence with your K700S order, then it should come with the coupling system that adapts the fence extrusion with flip-stops to the sliding table and includes a 90-degree flip-stop. ?: Believe me when I say that if there were a simpler method of fixing the existing 90-degree registration issues with the Felder short fence coupling system I would have done that. ?I didn¡¯t add the leveling grub-screws for the fun of it, and a looser tolerance on the locking lever-to-T-nut interface would defeat the entire purpose of the design correction. ?But it¡¯s moot at this point because I no longer produce the upgrade kits. ?Another member here on FOG (netanel.belgazal) was exploring the idea of a group purchase using another machine shop to make the required parts. I don¡¯t know where that project stands at present. I recommend you go through and read all the posts in this thread?from the archives. ?That thread goes into some of the alternatives for a simple on/off short crosscut fence. ? You can also consider an approach that adapts on off-the-shelf miter gauge to the slider?. ?If you build yourself a Fritz & Franz jig with a precise fit to the T-slot or clamps to the P-channel, it can serve as a short crosscut fence that is consistently at 90-degrees when put on the slider. ?? There are also other quasi Fritz & Franz jigs that will swivel for mitering applications, but they do not register square, nor do they have angle markings, so every time you use it you must use some contrived method of aligning it properly. ?Here is a link to one such jig that is made by RUWI in Germany and sold by Felder (and Martin and SCMI) on an OEM basis. ??is the RUWI from Felder, and I reviewed it at?. ?I have one that was used only to do that review and I¡¯d be glad to sell it to you if you want. ?DM me if you are interested. As for the ¡°5/8¡± End Mill Cutter¡± and ¡°-1.74mm¡± notations on the drawing, those are their as a setup aid for milling the T-nut from bar stock. ?It represents the milling cutter CL offset required to attain the properly dimensioned wings on the T-nut. ?You can see that operation on the mill in??at 0.28 in the timeline. ?And the purpose of the bushing is fully discussed in??- it is part of the modification that eliminates the slop at the pivot point for the fence. David Best
DBestWorkshop@... https://www.flickr.com/photos/davidpbest/collections/ https://www.youtube.com/@David_Best
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David P. Best