start of body work
sorry the real name is a vertical sander, ive always heard it called a mud hog. they have them at HF to...
http://www.northerntool.com/shop/tools/product_200112074_200112074?cm_mmc=Google-pla-_-Air%20Tools-_-Air%20Sanders-_-158320&ci_src=17588969&ci_sku=158320&gclid=CJ6nu6-F47kCFaVxQgodVGIAcQ
with the 40 grit your going to just take the paint and mud off, takes one pass, just till you see metal coming thru. and yes the only way to get it flat is to skim coat it and cut it. you'll here alot of people tell you skim coating is bad but they dont cut it enough. you have to cut it and get metal just to come thru and you'll be in good shape.
sorry the real name is a vertical sander, ive always heard it called a mud hog. they have them at HF to...
http://www.northerntool.com/shop/tools/product_200112074_200112074?cm_mmc=Google-pla-_-Air%20Tools-_-Air%20Sanders-_-158320&ci_src=17588969&ci_sku=158320&gclid=CJ6nu6-F47kCFaVxQgodVGIAcQ
with the 40 grit your going to just take the paint and mud off, takes one pass, just till you see metal coming thru. and yes the only way to get it flat is to skim coat it and cut it. you'll here alot of people tell you skim coating is bad but they dont cut it enough. you have to cut it and get metal just to come thru and you'll be in good shape.
