Magnetizing a Cryx Kit
Well, if you’re a regular on the PP Forums, you may have seen the Tutorial Finder thread in the Modeling and Painting section. One of the big hits is the section on how to magnetize the plastic ‘jack kits. However, there’s always been a missing tutorial. One for Cryx ‘jacks!
For this kit, I used only one type of magnet: 1/8″ diameter x 3/32″ thick Grade N42 magnets by KJ Magnetics. Leftovers from my menoth kit.
This was done per my usual method. Pins deep into the legs, holes into the base, insert and bend.
I started with the heads. I drilled holes into the back of each head and stuck magnets in, making sure they all had the same polarity. I followed that up with a hole into the center of the head cavity, again paying close attention to getting the polarity correct.
Now, on to the arms!
I started with the right arm for no particular reason. I sticky tacked the shoulder in place about where I liked it and then sticky tacked an arm to the shoulder. Much like I did on the Menoth ‘jack and Khador Battle box, I marked on the shoulder the outline of the joint.
After that, I drilled a hole for a magnet. I picked a random polarity because this is the first side. I’ll swap polarities for the other side, that way arms can’t be accidentally put on the wrong side.
Now, the Cryx ‘jack arms have really shallow cuffs – those rings all the ‘jacks seem to have where they join to the ball part of the shoulder. They’re too shallow to house an entire magnet. So, I drilled the shoulder hole deep enough for the magnet to be recessed a bit. The holes into the arms were then fairly shallow. Here’s what I mean:
You see how the magnet isn’t flush with the outer surface of the ball? That’s because I can’t make the magnet in the arms flush with the concave surface of the joint. By allowing the magnet in the arm to protrude a bit into the shoulder, I don’t have to order new magnets specifically for this kit.
Now, to get the magnets into the shallow arms, I had to do some slow drilling. Like usual, I drilled using a small, 0.85mm drill first. Then I stepped up through 5/64″ to 1/8″. At each drill level, I went as deep as I could until I saw the plastic turn white. This happens when the plastic is stressed, like when a drill bit is about to break through. By doing this, each magnet in the arms is as deep as possible.
I then rinsed and repeated for the other side, switching polarities so arms can’t be put on the wrong side.
What size Magnets did you use?
I edited the post to include the magnets. They were 1/8" dia x 3/32" thick neodymium magnets.
Hey! I've seen that robot before!
…he lived on my bookshelf for like 2 or 3 weeks. 😛
Nice tutorial. I'm curious though, how hard do you think the plastic will be to cut through for conversions?
The plastic has the feel of resin, really. It's dense, so it doesn't like being cut with a knife, but it yields very easily to a saw.
Next time you're at the store, talk with about your idea and I may be able to give better advice.
Wow man that looks awesome!! Thanks a lot!
I was trying to figure out what to do about the arms myself… I like your method.
Now to put in the order for Magnets…