Vanagon EuroVan
Previous messageNext messagePrevious in topicNext in topicPrevious by same authorNext by same authorPrevious page (April 2016, week 2)Back to main VANAGON pageJoin or leave VANAGON (or change settings)ReplyPost a new messageSearchProportional fontNon-proportional font
Date:         Wed, 13 Apr 2016 12:48:20 -0700
Reply-To:     Alistair Bel <albell@SHAW.CA>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Alistair Bel <albell@SHAW.CA>
Subject:      Re: And what should arrive in my inbox this morning from Banggood
              but this magnetic offer
Comments: To: Jim Felder <jim.felder@GMAIL.COM>
In-Reply-To:  <CAFnDXk0y6DkPQMW1ZWe0afEsrjKr8rVbKA4XaULh2Hq-yLtmLg@mail.gmail.com>
Content-Type: text/plain; charset=utf-8

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 >> >> >>


Back to: Top of message | Previous page | Main VANAGON page

Please note - During the past 17 years of operation, several gigabytes of Vanagon mail messages have been archived. Searching the entire collection will take up to five minutes to complete. Please be patient!


Return to the archives @ gerry.vanagon.com


The vanagon mailing list archives are copyright (c) 1994-2011, and may not be reproduced without the express written permission of the list administrators. Posting messages to this mailing list grants a license to the mailing list administrators to reproduce the message in a compilation, either printed or electronic. All compilations will be not-for-profit, with any excess proceeds going to the Vanagon mailing list.

Any profits from list compilations go exclusively towards the management and operation of the Vanagon mailing list and vanagon mailing list web site.