Making a custom metal shape that will reduce eddy current?

[gotoluc]

I think it's worth a try... if it crumbles just re-heat and add a little more wax but I would try it in a small scale first to see the results.

Luc

[Magluvin]

I think it's worth a try... if it crumbles just re-heat and add a little more wax but I would try it in a small scale first to see the results.

Luc

I agree, always test before wasting too much material and time going to far before you know for sure it will work. Thats why I will test the CA before making a core I intend to actually work with.

Mags

[Blainiac]

Excellent posts guys. I'm going to use the information from above and order some supplies based on your experience, you guys have saved me a lot of money. it'll be interesting to see how well I can do at it.


I'll keep you updated on any molding I do. It would be great if someone offered a service on here to just send a design and have a custom shape made. I will have fun testing though!

[Magluvin]

Excellent posts guys. I'm going to use the information from above and order some supplies based on your experience, you guys have saved me a lot of money. it'll be interesting to see how well I can do at it.


I'll keep you updated on any molding I do. It would be great if someone offered a service on here to just send a design and have a custom shape made. I will have fun testing though!

No problem Blain

If using resins, you need to mix the 2 parts first, then add the magnetic material. Otherwise, the 2 parts mixed after infusing the resin with the magnetic powder, will be hard to thoroughly mix and may not cure in some areas.  If using the surf board resin, do a couple tests with the resin itself by adding various levels of hardener(MEKP) to see what your time frame is for curing. Then you will know your approximate working time, and additional time with material infused.  if it takes till tomorrow to cure, then thats what it takes.  Get some plastic mixing cups, stirring sticks and a box of cloves. And MEKP, that stuff is very bad for you. Do not get it on your hands or any body parts. Use the rubber gloves when handling the MEKP particularly. Keep its container in one of the plastic cups when not in use. It seeps from the cap threads where a little excess resides after use and will run down the bottle, onto the table, on your hands when handling, etc.

The thin CA superglue will cure pretty fast Im sure..  But seems to be a possibly quick alternative to resin.  Just got done doing a real carbon fiber covering on a front spoiler at work. Used the CA to hold the carbon fiber cloth in place, like around sharp corners and small radius bends, then apply the surf board resin, about 5 layers. One on top of another without sanding in between layers is fine as the surf resin has no wax like other resins do and have to sand between layers. I was mixing it hot, meaning it cured enough to sand in 30min.  Before sanding, if needed, wipe the surface with a cloth and acetone. It takes a thin sticky layer off the surface and sanding is like butta.     With the magnetic material, sanding will be much harder. If you have to sand anything, like sharp edges/corners afterwards. Usually when in the mold, those surfaces are not sticky, only surfaces exposed will be, like when I was brushing it on the spoiler, the top surface needs the acetone wipe, or the sand paper loads up with the sticky stuff.

lol went to far on that, but ya never know how far a project can go, and its nice to have info first.

Mags

[Blainiac]

Thanks for the details!  I appreciate it more than you know. 


You're right, it's definitely helpful to use the experience of others before diving into a project, lol.  I'm going to start ordering some supplies very soon and I'll be letting you know exactly how it goes!    I think after I'm done, I'll try to work on some tutorials on different compositions/properties for others wanting to do this stuff too.  I appreciate the help a lot!