How To Make Homemade 90 Degree Gearbox Using Scrap Metals | DIY 50:1 Reduction Worm Gearbox Hello Everyone! Today I show you how to make a 90 degree gearbox. I used scrap metals in my metalworking workshop to make this diy 90 degree gearbox. This homemade 90 degree gearbox is very simple and easy to make at home. This diy worm gearbox is very cheap to make because I used scrap metals to make it. This homemade worm gearbox is very powerful. This homemade gearbox produces very high torque. The rat