Belt grinders are an absolutely essential component of a well-equipped metal shop. If you don't already have one (or more!), you need to build one this weekend. Some ideas for your consideration:

Homemade Belt Grinder by healing33

DIY homemade belt sander / grinder by allritythen

Homemade 2x72 belt grinder by Marcos del Aguila

2" by 72" Homemade Belt Grinder Construction by alaskabearhawk

Homemade 2" x 72" belt grinder and 9" disc sander combo by Dan Fuller

Homemade KMG Knife Makers Grinder with Wooden Wheels by 69furball69