Alexander Posted February 24, 2018 Share Posted February 24, 2018 Being a newbie with these foil coils I have a few simple question. Just got my Erse QFoil .16mH 14 AWG coils. How would one make the electric connection? Roll the end length wise a bit to resemble a typical wire? Mounting to the board, could it be stood on edge if needed with tie wraps? Is there anything that needs to be taken into consideration that would be different to a convention air coil? Quote Link to comment Share on other sites More sharing options...
Deang Posted February 25, 2018 Share Posted February 25, 2018 How big is the coil, and what brand did you buy? Quote Link to comment Share on other sites More sharing options...
Alexander Posted February 25, 2018 Author Share Posted February 25, 2018 1 hour ago, Deang said: How big is the coil, and what brand did you buy? Erse QFoil .16mH 14 AWG coils, about 43mm x 29mm measured. http://shopping.na3.netsuite.com/s.nl/c.650256/it.A/id.5021/.f?sc=15&category=9239 Quote Link to comment Share on other sites More sharing options...
Deang Posted February 25, 2018 Share Posted February 25, 2018 The center is .625", you might be able to use a fender washer that fits in there, and then drive a screw through the middle. Make sure all of the parts are stainless steel. Take one to the hardware store, and see if you can find one that fits. You can also drills holes and use zip ties, but you can't really cinch down. The goal is to gently secure it, and to stop it from spinning. On it's side would work too, but I don't like the way it looks. Either way, not secure enough for anything except for sitting it at the bottom of the cabinet. I've only ever shipped one network using these, and it was a bit nerve wracking. The leads: lay one flat on some wood, and make a hole using a punch. Expand the hole, and push some wire through. Fold the wire over one way, and the excess foil from the end over the wire -- then solder. Quote Link to comment Share on other sites More sharing options...
Deang Posted February 25, 2018 Share Posted February 25, 2018 If you don't want to solder, here is another way. One of the reasons I use Red Oak is because of how it takes screws -- there is an insane amount of pressure applied to those screws. I've never had the wood split, or a hole strip out. I forgot mention, you'll be tempted to use a drill instead of a punch to make the holes through the film. Don't do it, or you might end up with the whole lead wrapped around your bit. There's a reason I know that. 2 2 Quote Link to comment Share on other sites More sharing options...
Schu Posted February 25, 2018 Share Posted February 25, 2018 Can they be glued in place with a couple small dobs of adhesive? Quote Link to comment Share on other sites More sharing options...
Deang Posted February 25, 2018 Share Posted February 25, 2018 No, they're too heavy. I do drop some hot melt down the middle when I use zip ties, which does stop it from moving around, but those are for my personal builds - which typically sit on top of my LaScalas. I don't know enough about adhesives to know what would be a good glue to use. I worry about damaging the coil, and most adhesives tend to off-gas for weeks before they're fully cured. If anyone has any useful input on that note - that would be welcome. I would use them more if I could ship with confidence. Jantzen is the only company that builds these right. They have a wood center, which is already drilled out to accept a washer and screw. I think it's silly to wind and sell these, and not provide a way to properly mount them. Quote Link to comment Share on other sites More sharing options...
Deang Posted February 25, 2018 Share Posted February 25, 2018 Just finished these. Used some wax Janzen CFAC - here I put the standoff on top of the foil lead, and just put a screw through both of them. This is not the preferred way for me to do it, but when you start doing this kind of thing for other people, it doesn't take long to figure out that you have to protect the parts and connections from UPS and FedEx. Again. a lot of pressure on that screw. If there is any air between that standoff and the foil lead, I don't know where it is. Quote Link to comment Share on other sites More sharing options...
Alexander Posted February 25, 2018 Author Share Posted February 25, 2018 Thank you very much Deang. I do not mind soldering so that will be the method I will use on this project. The fender washer thing should be easy to find, and all hardware will be either SS or brass as a SOP. Thanks again. Quote Link to comment Share on other sites More sharing options...
Coytee Posted February 25, 2018 Share Posted February 25, 2018 Reading this and trying to picture your process (Dean), could you buy a dowel rod of proper size. Drill hole in middle. Place dowel inside coil, fill remaining gap with silicone and then screw the dowel to the base plate (using your washer technique)? Screw would keep it tight to the motherboard and the silicone would keep coil from rotating. There may be 400 reasons you wouldn't want to do this, including perhaps it might not work.... it just came to me as I was reading. Quote Link to comment Share on other sites More sharing options...
Thaddeus Smith Posted February 25, 2018 Share Posted February 25, 2018 what about drilling a hole in the board and then using one of these wall achors from the bottom? Would it just mangle the foil up top? Quote Link to comment Share on other sites More sharing options...
Schu Posted February 25, 2018 Share Posted February 25, 2018 I am pretty sure it need to be inert and non conductive. Does air coil mean that it actually needs to be exposed and non constrained or does it pertain to the layout and manufacturing? Quote Link to comment Share on other sites More sharing options...
Alexander Posted February 25, 2018 Author Share Posted February 25, 2018 1 hour ago, Schu said: I Does air coil mean that it actually needs to be exposed and non constrained or does it pertain to the layout and manufacturing? I believe it just means there is no core of any kind. Quote Link to comment Share on other sites More sharing options...
Deang Posted February 25, 2018 Share Posted February 25, 2018 You just don’t want a ferrous material in or around it Quote Link to comment Share on other sites More sharing options...
Alexander Posted February 25, 2018 Author Share Posted February 25, 2018 1 minute ago, Deang said: You just don’t want a ferrous material in or around it I guess I should had said no ferrous core in my previous post Quote Link to comment Share on other sites More sharing options...
Alexander Posted February 25, 2018 Author Share Posted February 25, 2018 Thanks for the pics Deang. BTW, here is a pic of the Erse QFoils. Quote Link to comment Share on other sites More sharing options...
pzannucci Posted February 25, 2018 Share Posted February 25, 2018 As for the solder, I used high quality solid core wire and clamped it around the foil so as to make a super tight mechanical connection, then soldered. Worked well and has never come loose Quote Link to comment Share on other sites More sharing options...
USNRET Posted February 25, 2018 Share Posted February 25, 2018 Amateur question on this. I understand that tight mechanical connection of stranded to stranded and then solder is good as the solder would permeate but wouldn't a super tight clamping of stranded to foil prevent the solder from flowing into the connection? Quote Link to comment Share on other sites More sharing options...
Deang Posted February 25, 2018 Share Posted February 25, 2018 People tend to think of solder as glue - think of it like paint. Solder solidifies and protects the connection. Quote Link to comment Share on other sites More sharing options...
USNRET Posted February 25, 2018 Share Posted February 25, 2018 25 minutes ago, Deang said: People tend to think of solder as glue - think of it like paint. Solder solidifies and protects the connection. Are you saying that solder does not benefit a connection other than preventing corrosion? Paint is for looks and corrosion delay by reducing oxygen intrusion period. Quote Link to comment Share on other sites More sharing options...
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