Isometric
Active Member
I dont want to buy a hydrometer, so I was thinking of making one. My idea is to take a straw, heat one end and close it, then put some sort of weight inside the straw. To make the marks I would put the straw in distilled water and where it floats that would be 1. Then I make a mark were the one is. To make acurate marks I print out a actual size ruler, cut it out and put it inside the straw. Would this work? Another question, are hydrometers in inches or centimeters?