Let me see what they quote back... I might go duct tape for the short term fix lol
JT On 8/16/2016 8:58 AM, Gene Heskett wrote: > On Tuesday 16 August 2016 03:28:44 Erik Christiansen wrote: > >> On 15.08.16 16:36, John Thornton wrote: >>> Hi Andy, >>> >>> Thanks for the link but it has to be very thin and slide over the >>> green things. I have identified it as a Hennig product... I think >>> this is the product. >>> >>> http://www.hennig-inc.com/products/flexible-apron-covers/aluflex/ >>> >>> So I'm wondering if there is a more cost effective way to replace >>> that aluminum apron thing... I'm sure they are not cheap. >> As it spools onto the roller underneath, the hinging must be at or >> near the top of the bars. With not a heap to lose after a failed >> previous fix, is there sufficient thickness for drilling horizontally >> through the bars just below the top surface, near each end, then >> stringing fine critter wire? Ideal would be a tension spring at one >> end of each wire, to snug the thing up in service. >> >> Otherwise, it would also be less labour intensive to simply laminate a >> sheet of mylar film onto the top of the bars. That would provide both >> the required hinge and a complete barrier to fine swarf. A very good >> clean, then a tube or two of cyanoacrylate glue, might just do the >> trick. People probably don't use mylar drawing film any more, but >> there has to be another source of good tough plastic film out there. >> >> Erik >> > "kaptan" comes in pretty thin stock, like .001". Broadcasters probably > have some as precut insulation used in hi-power tube sockets, forming > bypass capacitors between two sheets of silver plated brass. > > ISTR I saw it in rolls in the McMaster-Carr or Grainger catalog. > Amazingly high voltage breakdown, like 20,000 volts in a sheet 3 or 4 > mills thick. But I've no clue what its long term survival as a bending > material might be. I've never seen it used where it had to bend. > > What I have handled impressed me with its physical srength in such a thin > sheet. No clue how well the cyanoacrylate glue would stick to it. > > I'd imagine it would shrug off temps that would bake that glue loose, but > I'd doubt it would ever get that hot as a swarf cover in a milling > machine. > > It's a Dupont product since the'60's but I was not able to coax the > dupont site into giving me available widths. It can come with a > pressure sensitive glue on one or both sides, and is heavily used in the > flexible printed circuit field. > > I googled for 'kaptan polyimide film, perhaps there is a better search > term? > > <http://www.professionalplastics.com/KAPTONFILMPOLYIMIDE> > > shows me a 24"x24" by 5 mill sheet at $120. A bit high but I expect you > could cut what you need out of that and store the rest for when, and if > you had to do it again. You've not said the dimensions so I can only > guess how many times. Thats w/o any glue. Call 1-888-995-7767 for a > quote. > > Does this help, John? > > Cheers, Gene Heskett ------------------------------------------------------------------------------ _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
