On 22.11.15 02:54, Gene Heskett wrote: > On Sunday 22 November 2015 01:48:10 Erik Christiansen wrote: > > Since the boards appear to be way wetter than they'll ever be in later > > use, a lot of expansion room in the breadboard slot doesn't seem to be > > called for - they're only going to shrink from the status quo. My > > worry would be the width of the slot tracking board tenon thickness as > > everything shrinks. (It's nicest when breadboard ends don't rattle.) > > > Yup. With the warp and wind, I don't think thats going to be an > embarrassing problem.
<Chortle> It's that positive attitide which keeps things moving forward, I guess. :-) > So once I figure out how to drill the slot on thru, I expect I should > install the screws toward the outside end of the slot. That seems like a sound plan. Those outer-end screws then make best use of the slots, and don't risk hitting the inner end. ... > I presume that 3/16" carbide mills might be available, but I'd need one > with at least 2.5" of stickout. That seems like it could be made from > pure un-obtainium unless I have been looking at the wrong catalogs. A quick glance at fleabay suggests that vendors think an _overall_ length of 2.5" is "long length", so that plus enough to fill the collet is a bit rarer. Here's a 1/4" "extended reach" tool 4" long: http://www.ebay.com.au/itm/1-4-x-4-Garr-Carbide-4-Flute-Tialn-Extra-Long-End-Mill-42087-P-364/351584372706?_trksid=p2047675.c100010.m2109&_trkparms=aid%3D555012%26algo%3DPW.MBE%26ao%3D2%26asc%3D20140122130056%26meid%3D1e5b284edc93409e886cf86d16d3700d%26pid%3D100010%26rk%3D4%26rkt%3D7%26sd%3D181924091481 Might be hard to get one that long in 3/16", though. Dunno about the wood fluffiness. Just hope it's not due to it being sapwood (softer and less durable) or "reaction wood", i.e. wood which grew under mechanical stress, and which will warp once machined. (That can be fluffy too.) Heck, in this case it could just be a species thing, since most of us haven't seen it before. Must try to follow your example, and replenish my supply of round tuits. Erik ------------------------------------------------------------------------------ _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
