| Subject: | Re: And what should arrive in my inbox this morning from Banggood but this magnetic offer |
| From: | Alistair Bel |
| Date: | Wed, 13 Apr 2016 13:21:49 -0700 |
Doesn't work as well as discrete rare earth magnets Alistair > On Apr 13, 2016, at 12:59 PM, SDF ( aka ;jim lahey' - Scott ) <scottdaniel@turbovans.com> wrote: > > might find this useful... > it's Flexible Magnetic Tape With Adhesive. > > I was buying some bug screen with magnets for a house door application and found this stuff in an Ace Hardware store. > Can be cut to whatever length you want, and is 1 inch wide, the roll is 10 feet long. > >> On 4/13/2016 9:48 AM, Alistair Bel wrote: >> I'm a little sceptical that those teeny magnets will have the flux density ( doesn't that sound smart?) to hold screens secure. Even with a bunch of them. I don't think the field of such a thin magnet will extend very far at all. >> >> Alistair >> >> >>>> On Apr 13, 2016, at 11:57 AM, Jim Felder <jim.felder@GMAIL.COM> wrote: >>>> >>>> I will probably try this as well, it is a good idea. These magnets are so >>>> small that you could probably fold a piece of duct tape in half. Two >>>> things: 1, you don't want to sew through duct tape or any other adhesive >>>> very far as you will spend way more time cleaning your machine and fixing >>>> the thread and sewing as the adhesive accumulates on the needle and goes >>>> under the cloth to the bobbin. Ask me how I know. >>>> >>>> Secondly, the duct tape may not (or may) have enough stiffness to do the >>>> job. Even it it didn't by itself, you could probably sew a piece of box >>>> strapping in behind the duct tape and magnets to give it a little spring. >>>> Which, for all I know at this point, it may not really need. >>>> >>>> Jim >>>> >>>> On Wed, Apr 13, 2016 at 1:51 PM Richard Koerner <rjkinpb@sbcglobal.net> >>>> wrote: >>>> >>>> As you were describing your design, an idea popped into my head: >>>> >>>> You could lay down a strip of 2" wide duct tape, sticky side up, but stuck >>>> down on tabletop at the ends with additional tape. Place the magnets in a >>>> row at 1" spacing....hopefully the adhesion to the duct tape will keep them >>>> from jumping over to each other. When all magnets are installed, place a >>>> second strip of duct tape sticky side down over the first piece of duct >>>> tape, thus capturing each magnet in it's own little compartment. A >>>> sandwich. Then trim the assembly to maybe 1" wide so it's nice and neat. >>>> Now this assembly can be laid into the hem of fabric and the stitching goes >>>> through the edges of the duct tape sandwich. >>>> >>>> The duct tape sandwich assembly should give a little rigidity yet at the >>>> same time provide flexibility so that the fabric can be rolled up or folded. >>>> >>>> Just an idea. >>>> >>>> Rich >>>> San Diego >>>> >>>> >>>> ------------------------------ >>>> *From:* Jim Felder <jim.felder@GMAIL.COM> >>>> *To:* vanagon@GERRY.VANAGON.COM >>>> *Sent:* Wednesday, April 13, 2016 11:35 AM >>>> *Subject:* Re: And what should arrive in my inbox this morning from >>>> Banggood but this magnetic offer >>>> >>>> Here's what I have in mind, subject to change as other parties actually >>>> think this through for me: >>>> >>>> 1. it is going to take a bunch of these little magnets, but that is what I >>>> want, their power times hundreds. >>>> >>>> 2. The magnets must be separate somehow. If they touch or clump, even after >>>> being sewn in to individual pockets of cloth, that will not keep the cloth >>>> from doubling over and over as the magnets find each other. Therefore, >>>> >>>> 3. I intend to glue the magnets down with hot glue, say, to a flexible >>>> strip of plastic, some strapping tape, say, about an inch apart. >>>> >>>> 4. I will wrap the flexible but very strong magnetic strip in cloth and sew >>>> it closed with a zipper foot, allowing enough left over to sew this strip >>>> to the usual vinyl edging into which the screen is sewn. It is a plus that >>>> the magnets are small enough to pass under a sewing foot if they have to. >>>> >>>> 5. I am contemplating different approaches to an entryway, I guess two >>>> pieces with an overlap in the middle will do for a first pass. >>>> >>>> Jim >>>> >>>> On Wed, Apr 13, 2016 at 12:55 PM Steve Williams < >>>> steve@williamsitconsulting.com> wrote: >>>> >>>>> Oh my heck! >>>>> >>>>> I don't have the patience to work with something THAT small... that >>>>> wants to stick to anything metal! lol. >>>>> >>>>> Good to know they are out there though :) >>>>> >>>>> Thanks for sharing! >>>>> >>>>> Cheers, >>>>> Steve W. >>>>> >>>>>> On 13/04/2016 10:35 AM, Karl Ploessl wrote: >>>>>> if the description is correct, they are tiny: Diameter: 3mm(±0.1mm) >>>>>> Height: 1mm(±0.1mm). So 500 seems to be right >>>>>> >>>>>> On Wed, Apr 13, 2016 at 12:23 PM, Steve Williams >>>>>> <steve@williamsitconsulting.com >>>>>> <mailto:steve@williamsitconsulting.com>> wrote: >>>>>> >>>>>> Hi, >>>>>> >>>>>> Is that price $4.00 USD for 500 of them? That doesn't make sense to >>>>>> me... but $4.00 / magnet seems expensive, but perhaps not? >>>>>> >>>>>> How many do you think it will take for the bug screen? This is >>>>>> something I'm really interested in doing as well. >>>>>> >>>>>> Cheers, >>>>>> Steve W. >>>>>> >>>>>> >>>>>> On 13/04/2016 9:26 AM, Jim Felder wrote: >>>>>> >>>>>> A way to follow up something I have wanted to do for years, >>>>>> create an >>>>>> all-magnetic bug screen for the sliding door. These aggressive >>>>>> little >>>>>> magnets ought to do the job! Anyway, the price is right and >>>>>> they are on >>>>>> order. Once glued to a flexible plastic tape/strap (so they >>>>>> won't stick to >>>>>> each other) and sewn into edging for the netting, I'll bet >>>>>> they will work. >>>>>> >>>>>> < >>>> http://www.banggood.com/500x-Disc-Rare-Earth-Neodymium-Super-Strong-Fridge-Magnets-N35-3x1m-Craft-Model-p-1042903.html?utm_design=41&utm_source=emarsys&utm_medium=Mail_mailad233_dealalert&utm_campaign=newsletter-emarsys&utm_content=Winna≻_src=email_1791754≻_eh=21b49b9fb0df57d91≻_llid=631316≻_lid=80505949≻_uid=GEFGGfoQpi&emst=GEFGGfoQpi_631316_1791754_128 >>>> <http://www.banggood.com/500x-Disc-Rare-Earth-Neodymium-Super-Strong-Fridge-Magnets-N35-3x1m-Craft-Model-p-1042903.html?utm_design=41&utm_source=emarsys&utm_medium=Mail_mailad233_dealalert&utm_campaign=newsletter-emarsys&utm_content=Winna&sc_src=email_1791754&sc_eh=21b49b9fb0df57d91&sc_llid=631316&sc_lid=80505949&sc_uid=GEFGGfoQpi&emst=GEFGGfoQpi_631316_1791754_128> >>>>>> Jim >
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