I have used the sandblaster at work, it is no fun.
I found it much more enjoyable to pay to have my frame sandblasted.
Although if you must do it yourself do it in cool weather so the sand does not stick to you so much and you can wear more clothes without being hot.

•1951 GMC 250 in the Project Journals
•1948 Chevrolet 6400 - Detroit Diesel 4-53T - Roadranger 10 speed overdrive - 4 wheel disc brakes
•1952 Chevrolet 3800 pickup
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"First, get a clear notion of what you desire to accomplish, and then in all probability you will succeed in doing it..." -Henry Maudslay-