NorthWest Kayak Anglers

Kayak Fishing => Drillin' & Cuttin' => Topic started by: Tinker on September 04, 2021, 09:24:14 AM

Title: Who did the magnetic transducer mount?
Post by: Tinker on September 04, 2021, 09:24:14 AM
I remember the post but I can't find it through a search.  If you're using a magnet to mount your transducer - or anything else - I have questions.

I want to use a samarium cobalt alloy magnet for a different type of mount but I keep reading the rare earth magnets (any alloy) lose most of their rated holding power if they aren't touching the metallic contact.  Is this true?
Title: Re: Who did the magnetic transducer mount?
Post by: Tinker on September 04, 2021, 02:05:46 PM
Nevermind.  Found it.
Title: Re: Who did the magnetic transducer mount?
Post by: Stevm on September 05, 2021, 03:24:49 PM
Looks like you found what you were looking for.  FYI - I still use the magnetic mount on the T-13 that Trident 13 made.  It still works just fine.
Title: Re: Who did the magnetic transducer mount?
Post by: Tinker on September 05, 2021, 03:36:48 PM
I didn't find Trident 13's post, but I found one by Widgeonmangh where he built a magnetic transducer mount that was inspired by T13's.

(Thanks for letting me know who got his Trident)
Title: Re: Who did the magnetic transducer mount?
Post by: BentRod on September 07, 2021, 06:30:46 AM
I did one too.  I built in April of 2019....Still going strong. 
Title: Re: Who did the magnetic transducer mount?
Post by: Tinker on September 07, 2021, 07:04:04 AM
Thanks!  I have a couple of questions, if I may:

A. Have the magnets corroded?
B. Did you attach a magnet inside the hull or let it be held in place with the magnet on the outside of the hull?
 

I did one too.  I built in April of 2019....Still going strong.
Title: Re: Who did the magnetic transducer mount?
Post by: BentRod on September 07, 2021, 09:14:56 AM
Thanks!  I have a couple of questions, if I may:

A. Have the magnets corroded?
B. Did you attach a magnet inside the hull or let it be held in place with the magnet on the outside of the hull?
 

Happy to answer what I can.  I encased my magnets in plastic.  Based on research I expected them to corrode, so figured I'd seal them up so they couldn't get wet.  I have a fishing magnet that utilizes what looks to be the same style magnet and it's got some corrosion after a couple years use.  I know these magnets can be brittle too, so didn't want to accidentally break/chip one having them exposed either.  The plastic I used is PVC, so was able to sandwich two pieces together with standard PVC glue.  That's how I made the arm as well.

I made a matching magnet setup for the inside of the hull, so my outside magnets marry to the inside magnets.  I thought that would provide the strongest attraction, but I didn't test any other options, so not sure if that was the best choice.

I have found that the magnets do well on my Lifetime kayak, but are on the weak side for the thicker hull of my Old Town.  I've since moved to a track mount for the transducer.

For the build I used two disc type magnets on the outside and two on the inside.  If I were to do it again I would probably make the mount larger and use four magnets, but then the mount has a harder time conforming to contours of the plastic.  Will attach some pics if I can figure out how. 

https://photos.app.goo.gl/DgGfa3waCWZo3GxJ7 (https://photos.app.goo.gl/DgGfa3waCWZo3GxJ7)
Title: Re: Who did the magnetic transducer mount?
Post by: Tinker on September 07, 2021, 10:37:49 AM
Thank you, and thanks for the photos.  They help.

I appreciate the time and effort you used answering my questions.