I have included some more data for those of you that want to use the item line 5 profiles (20x20, 20x40, 40x40, 40x60, etc.) Although I have seen it mentioned on this site that the "automatic fastener" will not work for use on the robot, that is absolutely not true. In fact, there is no other system that uses an automatic fastener for connections of profile because there is no other system strong enough for it to work. The item automatic fastener (not bracket)has the highest strength to weight ratio on the market today and this attached data shows that fact. The automatic fastener for the line 5 profile weighs 1/4 oz and has a pull out strength of 500N (112.4lbs) and requires NO machining. I highly recommend they be used in pairs on each end of the profile. So the total weight for fasteners is ONE OZ. This is a fact. If you would like more factual data, please see the
www.itemamerica.com website or call me at 262-363-4800 or email
loren@item-midwest.com. I'd love to help you out with your projects and as a degreed ME with over 17 years of structural design experience, you can be assured of getting sound engineering advice. Go teams go!
Loren
Team 930