COG-Fit : A mod capable of changing the amount of momentum

This is a mod that I've been thinking of for quite some time. The purpose is to be able to suit every spinner in the world, such that there's no more problems like "what pen should I buy?". Almost every part of the mod could be subbed with other parts. There's twist-mechanisms on both sides of the pen to adjust how "heavy" the mod feels when you spin it, or how much momentum there is.

Here's some stats: Length≈22cm, depends on what tips and barrel you use. Weight: COG-Fit≈Waterfall mod

Let's start modding then! Materials:

Pentel Twist-Erase Click(PD275 / PD277 / PD279)*2 G3 Tips*2 PlayColor2 Barrel*1 Anyball Grips O-Rings*2 (Note that everything other than the Twist-Erase can be subbed with other parts that you have!)

Tutorial:

1. Cut away the PC2 tip, you could also make it more colorful like what I did by connecting 2 PC2 barrels.

2. Rip off the clip on the Twist-Erase, prefferably with a pair of pliers, file down the bulging part until smooth.

3. Pull the "Eraser" part of the Twist-Erase out of the rest of the pen. There's a V-shaped protrusion, file away the V-shape and file down where it used to plug into the rest of the pen until it fits snuggly into the PC2 barrel. Discard the mechanical pencil part.

After filing, you should end up with something like this

4. Pull the eraser out of the Twist-Erase, and cut 0.5cm measuring from the end of the little bulge

It should be able to fit into the G3 tip LOOSELY

5. Shove the eraser back into the Twist-Erase

6. Apply grips to the Twist-Erase by your prefference, and secure the tip with the grips you use. Make sure that the piece of grip that's covering the knob for twisting is not overplaced on the rest of the Twist-Erase.

7. Assemble the parts, and you have a COG-Fit!

This is not a challenging mod to make, but it took me a long time to find something like Twist-Erase Click. I tried not to use any tape or glue, just because I really dislike those, but if you happen to have to use any, please do so. The filing process is tedious and time consuming, but other than that I suppose you could mod this in less than 15minutes. This mod works by twisting the hidden knob, pushing the piece of eraser in the mechanism, therefore changing the momentum of the mod. Even though a little piece of eraser isn't that heavy, it makes a huge difference.

For the lite version, just simply remove the tip and replace with a harder grip!