Hi everybody; I did some back of the napkin measuring this evening, with an eye toward building a vice for wood to hang down over the left front edge of the table of my micro mill, then either strip an old wallered out bearings B&D router, the crap they sold 20 years ago for $29.95, replace its bearings after pushing the shaft out of the armature leaving me with a shaft & the bit collet (1/4" only, thats fine), which I would then bore a piece of water pipe for the fresh bearings. Attach that with some u-bolts to an alu plate bolted to the front face of the mills head casting so that this spindle is offset to the left about 7 or 8", and forward about 3". I have the alu, so a 3/4" thick plate is not out of the question. Drive, I am thinking could be some sort of a belt with about a 4" pulley on a shaft inserted into a 1/2" collet in the existing spindle, to about a 1.25" pulley on the B&D spindle shaft right above the collet. Leaning toward a 1/4" o-ring type of belt. Run time at any one time probably under 3 minutes so heat shouldn't be a huge problem. Pulleys & such I can make.
This would be used to carve a tenon on the end of a stick of harder wood, something I don't have the precision to do accurately enough on my cheap table saw with a tenon sled straddling the fence, mainly because I have no way to advance the fence by .002" for the final, fits exactly cut. Nor can I cut the rounded corners on the table saw, plus the blade height wiggles or vibrates down about .0005" every time I hit the start switch, so even with an ATB+F blade, clean tenon shoulders just aren't possible. Has anybody ever done something similar, and can offer me some hints, like where to buy a _decent_ set of bearings to replace those busted skate wheel bearings B&D used. Without paying $30/copy? -- Cheers, Gene "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) <http://tinyurl.com/ddg5bz> <http://www.cantrip.org/gatto.html> No matter how cynical you get, it's impossible to keep up. ------------------------------------------------------------------------------ Colocation vs. Managed Hosting A question and answer guide to determining the best fit for your organization - today and in the future. http://p.sf.net/sfu/internap-sfd2d _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
