Jan 24, 2013, 04:50 PM I DESIGN QUADCOPTERS Joined Apr 2012 776 Posts Discussion space between arm for 10 inch props ?? can semeone tell me the space betwen arms if I made a chasis that use 10 inch props like the diji f450 chasis
 Jan 24, 2013, 05:52 PM Registered User Joined Jul 2012 58 Posts Come on, do you really need to ask kindergarden math on a forum? In the time it took you to write the post, you could have calculated it yourself ten times over, in the time it would take to get a reply you could build the damn frame.
 Jan 24, 2013, 07:42 PM I DESIGN QUADCOPTERS Joined Apr 2012 776 Posts I imagine 450mm
 Jan 25, 2013, 02:25 PM Registered User Joined Jun 2012 14 Posts 450 / sqrt(2)
Jan 25, 2013, 10:06 PM
Joined Apr 2012
776 Posts
now here another one
for 29 inch prop, ( crazy )
http://www.rctigermotor.com/

# Images

 Jan 25, 2013, 10:14 PM Registered User United States, TX, Midland Joined Nov 2006 74 Posts Depends. Hex?? Quad?? You talking diameter tip to tip? Or one arm to the next tip to tip?
 Jan 25, 2013, 11:55 PM I DESIGN QUADCOPTERS Joined Apr 2012 776 Posts quad front arms , distance??
Jan 26, 2013, 09:02 AM
Registered User
United States, TX, Midland
Joined Nov 2006
74 Posts
Quote:
Just a bit of Math. You could calculate the smallest you can go and still use 10 inch props. Or just find the distance after a given length of an arm. For example, if it was smallest quad that would use 10s. Plug in 10 for the hypot. Maybe 10.5 for clearance. Then your two, 45 angles since its a quad. Will give you the length of arms. Like n3mo said simple math. I've never built a custom quad before. But I did stay at a holiday inn express last night.
Last edited by nuttzzy34; Jan 26, 2013 at 09:16 AM.
 Jan 26, 2013, 02:33 PM Registered User United States, NC, Wallburg Joined Dec 2011 89 Posts What software are you using to draw out your frame Saskya? I have been working on a Spyder style frame and while it is just math it is nice to have someone verify what your thinking. We all can't be math majors and need a little bit of validation. Good luck with your build and post up some pics.
 Jan 26, 2013, 03:49 PM Registered User United States, TX, Midland Joined Nov 2006 74 Posts Ten in props require a minimum arm length. Of 7.42 inches. Center of frame to center of prop. That's 14.8 or 15 inches diameter from prop to prop center.
Jan 26, 2013, 04:10 PM