Xacto X5282 Basic Knife Set Very handy for cleaning up parts, removing supports, etc.
Prang Hobby Paint Brush Set, 5 Assorted Brush Sizes (94005) necessary to prepare print bed for ABS
Half Round File Size: 8" You'll want this for part cleanup, getting things to fit
Neiko 01407A Electronic Digital Caliper Stainless Steel Body with Large LCD Screen | 0 - 6 Inches | Inch/Fractions/Millimeter Conversion MUST HAVE! Measure filament for print configurations, printed objects for tolerances/clearances, things that need to fit together
Grizzly G9753 TiN Coated Dril Length Set, 50-Piece Metric Use this for cleaning out small holes in printed parts.
ASUS Laptop VivoBook V551LB-DB71T Intel Core i7 4500U (1.80 GHz) 8 GB Memory 1 TB HDD NVIDIA GeForce GT 740M 15.6" Touchscreen Windows 8 64-Bit [Discontinued By Manufacturer] You'll have to have some kind of computer. This one works great for me.
Super Lube 21030 Synthetic Grease (NLGI 2), 3 oz Tube Excellent for keeping your printer running smoothly
Techni-Tool Cut Strip & Crimp Tool, 5-In-1, Metric, 8 1/4" for stripping wire and cutting metric screws. Only necessary if you're building a RepRap machine
Pc Accessories- Idc Crimp Tool, For Flat Ribbon Cable And Idc Connectors Not required unless making up custom cables for your DIY reprap machine
OEMTOOLS 25345 Metric Feeler Gauge with 25-Blade Nice to have for leveling the bed. But a business card will do the trick just as well.
Drill America 8.00mm Cobalt Metric Jobber Length Drill Bit, D/AMMCO8.00 You'll need this if you build a printer to clean out holes in frame parts