Picture of Great Way To Save Expo Pens
This instructable helps eliminate squished dry-erase pen tips.  Perfect for teachers that have to deal with squished dry-erase pens. 
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Step 1: Gather Materials

Picture of Gather Materials

Expo pen 

A pair of pliers ( I used needle-nosed pliers) 

Step 2: Remove End Cap

Picture of Remove End Cap
Take your pliers and gently pull off the end cap, this may take some force,but don't break it. You should be able to see the ink cartridge, remove it and place the two pieces in a zip-lock bag.

Step 3: Take Off The Chisel Tip

Picture of Take Off The Chisel Tip
First take off the cap. Then take your pliers and carefully tug on the chisel tip, as it should come off with ease. 

Step 4: Assemble Pen

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First, put the dullest side of the chisel tip in first.  Next, take the ink cartridge and find the side with the indentation on it. Drop that side in first. The part of the ink cartridge should have four little dent on it. Finally, you put the end cap on with some force. Now go enjoy your new and sharp expo pen!
MaryT8M3 years ago
WOW how cool.....wish I had know this a few years ago!
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Thx, I might get around to making some more instrucatables soon,
sieramolly2 years ago
Brilliant, Sam. Maybe I can use less than a thousand next year.
blueblobbs (author)  sieramolly2 years ago
Yep. It's always a good idea.
BLUEBLOBS22 years ago
How come your workspace or your fingers aren't very messy after removing the chisel tip?
davidkichi2 years ago
Good stuff! I was curious to know if you could just pull out the tip enough to cut off the frayed part w/out taking it out or would that not work? (coming from a lazy guy) Thanks!
blueblobbs (author)  davidkichi2 years ago
I'm no sure, but I don't think it would work because it is a certain length to reach the ink cartidge, sorry.
That makes sense. I guess you'd have to open up the other side and push the ink tube forward each time so that it would reach the tip perhaps. Or connect the tip and the ink tube with tape or something so it moves in unison if tip is cut. Thanks.
blueblobbs (author)  davidkichi2 years ago
Found some links to green pens and the like, hope they inspire more instructables:
BLUEBLOBS22 years ago
Very nice 'Ible. I wish that I could have thought of this...
In my experience, the whiteboards are severely damaged by the solvent-based eraser sprays often used on them.
You've probably seen these off-white bottles.
To ensure the longevity of your whiteboards, use soap, water, and a cotton cloth.
When nobody is looking, throw the bottles in the trash in a room where they won't be retrieved.
blueblobbs (author)  Ricardo Furioso3 years ago
Wow, I never knew that! Thanks for the information