windows7ista
New member
Im making a mousetrap car for science and in the back of the car i have two disc for a wheel when i have a pen and in the hole of the disc it is larger than the pen so my purpose of that is to connect the pen to the hole of the disc to make it accelerate along with it, my only problem is that the pen is too small to fit in the disc hole is there some kind tool i could put the pen in the middle of the disc hole and make it stick in the pen in the center of the disc hole? Thank you soo much!!