Quote:
Originally Posted by Andrew Schuetze
4 Front / Rear dead axle saddle 0.28402 = 1.13608
2 1530 lite rail 33 inches 5.51536 = 11.03072
2 AndyMark Supershifter mount / saddle 0.38186 = 0.76372
2 AndyMark Supershifter 4.6 = 9.2
4 CIM motors 2.1 = 8.4
6 1" Angle Aluminum 26 /w 1.5 cut-outs 0.564 = 3.384
8 #25 Aluminum sprocket 30 tooth 0.125 = 1
12 #25 rollerchain per foot 0.09 = 1.08
6 AM FIRST wheels /w bearings 0.8 = 4.8
4 0.50 inch Aluminum shaft 4" 0.077 = 0.308
Total = 41.10252
This minus all the fasteners which include corner gussets for the 8020. I'll try and post an assembly drawing in a few (hours...days)
Comments welcome on weight reasonableness  |
Are you using 1" aluminum angle to connect the two sides of the drive train? I personally wouldn't go any less than 1" box with 0.125" wall thickness (or equivalent 1010 extrusion).
Also, the 1530 Lite extrusion is overkill for practically everything in FIRST. 1020 extrusion should work just fine, and would save you a lot of weight (about 5 pounds!) in the process.