The shop has placed a Makita belt sander (https://www.amazon.com/dp/B0000614UT?ref=ppx_yo2ov_dt_b_fed_asin_title) in its inventory that will be good for sanding those pesky tabs that may be a part of your CNC project. It is particularly good because it can get into small areas due to its 3/8" belt width. Take a look at the tool in the link above.