About this 3D model

I designed these to fit my Washburn J28SCEDL Electric Acoustic guitar. The original heads became all sticky, making a mess of your hands any time you have to touch them, so I whipped out my callipers, took some measurements and got drawing. I must say they came out really nicely, so I hope they can help someone else who needs to replace theirs and don't want to replace the whole machine head assembly.