You can buy a rare earth magnet that has a bugle head recess and replace the alligator clip with a magnet. You just cut off the alligator clip and put a screw through the magnet recess with a nut to secure the wire. that is the type that C3D uses for the newer Bitzero they sell. You might contact firstname.lastname@example.org to see if they will sell you the magnet they use.
They are 2 different items, the first one you linked is a Bitsetter. I would suggest this item is a must if you plan on using multiple tools during a carve, I have used them on every carbide 3d machine I have ever owned and are well worth the investment.
From the Carbide3D store:
The second device you linked is what Carbide3D calls a Bitzero, that lets you set the zero on your work piece. The one you have shown is an aftermarket version of this:
I have personal experience with both the aftermarket version and Carbide 3D’s past and present version of the Bitzero. I found that they all work well, but I much prefer the Carbide 3D version, the newest one with the hole in the corner.
It is a very nice upgrade and sets my zero more accurately due to the upgraded centering ability of multiple touch offs used to determine your zero location.
Carbide 3D’s version is more expensive then the aftermarket for good reason, but if cost is the main consideration, the aftermarket version does work.
Understood. Although I haven’t used it, I’m turned off by the use of the alligator clip anyway. So far, in my learning curve I haven’t had a need for one. I’ll look into the official one when the need arises.