Thank you for purchasing the G0704 Belt Drive prints from Hossmachine. You can download the file here. http://www.g0704.com/G0704beltdrives.zip Formats are in AutoCAD .dxf, .stl, .pdf and windows .jpg Included are the following for building ether the timing pulley or V-belt versions. 3D Prints CNC Timing Pulley Version CNC V-Belt Version Quill Drive Version (both timing and V-belt) Premade Single Pulley Beltdrive Tach Pickup Mount MAD Drawbar Drawbar Wrench Spindle Spanner Wrench Prints for using the Stock 600 Watt Spindle Motor, PM25MV Spindle Motor, 1100 Watt BF30 Spindle Motor and Nordic Track Treadmill Motor For the Stock 600 Watt motor, The timing pulley version uses a 75 tooth 3/8 inch wide XL timing belt. The v-belt version uses a 3L150 fractional HP belt. ( Note: a 2L150 could be used also) read the "Read Me" text in the folders for more belt info. belleville washers for the MAD - MSC #: 87779880 from www1.mscdirect.com The M20x1.0 nut for the top of the spindle. http://us.misumi-ec.com search for FUNT20 The password for the .zip file is x57mnB9x Upgrade of the spindle bearings prior to use is highly recommended, we bear no responsibility for any damage that may be caused to the stock bearings or other mill components due to the large increase in RPM output. Hossmachine and any other intermediate parties are in no way responsible for any damage or injury, direct or consequential, relating to the use or construction of any of the projects or information outlined here. The information contained here is for general guidance on matters of interest only. All copyrightable text and graphics, the selection, arrangement, and presentation of all materials (including information in the public domain), and the overall design of the prints are ©2007 Daniel E. Kemp. All rights reserved. Permission is granted to download and print materials for the purpose of viewing, reading, and retaining for reference. Any other copying, distribution, retransmission, or modification of information or materials, whether in electronic or hard copy form, or construction of parts or kits based on these designs for resale without the express prior written permission of Daniel E. Kemp and Hossmachine, is strictly prohibited.