Bill Sanford
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  • Bemidji, MN
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Bill Sanford's Discussions

Optimum ArduCopter motor shaft to motor shaft distance?

Started this discussion. Last reply by Bill Sanford Mar 1, 2011. 3 Replies

First, what is the span or distance from motor shaft to motor shaft on the shipping ArduCopter? Second, is it better for stability to reduce the span, or increase the span. I understand that yaw…Continue

PID tuning help??

Started this discussion. Last reply by MVeloso Feb 5, 2011. 6 Replies

So my quad is flying reasonably well, but I need some help with PID tuning.  Is there a good post somewhere explaining how to go about adjusting the PID values to improve the stability of the…Continue

What's up with FahPah vs. jDrones??

Started this discussion. Last reply by Chris Anderson Feb 13, 2011. 9 Replies

Is FahPah the same as jDrones? Isn't FAhPAh in Laos?  jDrones is in Bankok... Has the DIYDrones relationship changed here? Just curious...  Continue

Yaw control suggestion...

Started this discussion. Last reply by Al Ros Apr 26, 2011. 3 Replies

I posted the following over on RC groups and thought it would be good to post this here as well. I have a comment and suggestion regarding the yaw control. In the ArduCopter code, the code's roll…Continue

 

Bill Sanford's Page

Latest Activity

Al Ros replied to Bill Sanford's discussion Yaw control suggestion...
"Awesome   Just been searching on this issue to try and clean up yaw sloppiness. Can't wait to try this new code version   Al"
Apr 26, 2011
Bill Sanford replied to Hai Tran's discussion ArduCopter MacGCS
"I tried connecting with my quad tonight and your software works great running Mac OSX 10.5. Great work!"
Mar 1, 2011
Bill Sanford replied to Bill Sanford's discussion Optimum ArduCopter motor shaft to motor shaft distance?
"Thank you!"
Mar 1, 2011

JDrones
Jani Hirvinen replied to Bill Sanford's discussion Optimum ArduCopter motor shaft to motor shaft distance?
"Exact distances for official ArduCopters are 60cm Shaft-to-Shaft with longer 28cm arms and 46.5cm S-t-S with shorter 21.5cm arms.   Empty weight for 60cm ArduCopter without receiver or battery is 775gr. Receivers are usually 12-20gr each.…"
Mar 1, 2011
Bill Sanford replied to Hai Tran's discussion ArduCopter MacGCS
"It seems to run just fine on 10.5.8.  I'm at work, so I can't connect to my quad, but I'll try it tonight.   Thanks!"
Mar 1, 2011
Bill Sanford replied to Hai Tran's discussion ArduCopter MacGCS
"Do you really need 10.6 to run the software?  Are you calling Mac toolbox calls only available in 10.6?  If not, you may want to change the parameter in your development environment so that older versions of the OS can run the software..."
Feb 28, 2011
Sebastian Gralla replied to Bill Sanford's discussion Optimum ArduCopter motor shaft to motor shaft distance?
"http://code.google.com/p/arducopter/wiki/ArduCopter_QuadIntroduction stability is the same on big and small quads (because you change the PID according to it's size) small quads may have more agillity bigger quads may can fly more…"
Feb 28, 2011
Bill Sanford posted a discussion

Optimum ArduCopter motor shaft to motor shaft distance?

First, what is the span or distance from motor shaft to motor shaft on the shipping ArduCopter? Second, is it better for stability to reduce the span, or increase the span. I understand that yaw control is better with less span, Thoughts?See More
Feb 27, 2011
Bill Sanford replied to Hai Tran's discussion ArduCopter MacGCS
"I downloaded your app and when I try to launch it I get the message that it won't run with my version of OSX.    I'm running Mac OS version 10.5.8.   Any ideas?"
Feb 26, 2011

3D Robotics
Chris Anderson replied to Bill Sanford's discussion What's up with FahPah vs. jDrones??
"Terry, we're happy to work with any retailers. But since you're inside the US, you'll have to comply with ITAR export regs. Doable, but more restrictive and more red tape."
Feb 13, 2011
Bill Sanford replied to Jahn Otto Andersen's discussion Firmware versions
"I would recommend that you start with the ArduPirates NG sketches and libraries v527. You can download them from here:http://code.google.com/p/ardupirates/downloads/list   You are correct in that the next path is ArduCopterMega.   Best of…"
Feb 12, 2011
Bill Sanford replied to ArileyS's discussion Landing Gear Recommendations?
"Avery low tech and cheap solution that holds up well and costs next to nothing is PVC gutter downspout.   Get yourself a 10' length of downspout for maybe $10 and you can make enough for yourself and everyone who has ever made a…"
Feb 12, 2011
Terry Hofecker replied to Bill Sanford's discussion What's up with FahPah vs. jDrones??
"We are a Micro-UAV training firm in the Dayton, Ohio area and would be interested in taking a franchise regionally.  We DBA Trident Aerial Recon.  Parent company is the Trident Group Ltd. (http://www.ttgltd.com/).  Obviously tardrones…"
Feb 12, 2011
Bill Sanford replied to emile's discussion AcroStable mode - is this possible?
"Sounds good!  I've been too busy this week to dig into the code.    Maybe this weekend!"
Feb 11, 2011
Bill Sanford replied to emile's discussion AcroStable mode - is this possible?
"Hi Emile, Just having the ability to bank up to 90 degrees would make stable mode much more fun.  By changing my pitch and roll end points to 125% on the radio allows for a steeper bank angle, but still not close to 90 degrees.  I'm…"
Feb 10, 2011
Bill Sanford replied to Christof Schmid's discussion ACM Testflights of today
"Sounds great!   I've been reading about it and I like what I'm seeing Chris!   Let us all know when it's getting close and we can begin testing.  "
Feb 5, 2011

Profile Information

About Me:
CEO and Director of Engineering of two PBS stations in Northern MN. Have done software and hardware design. Fly RC helis and airplanes.
Tell us a bit about your UAV interest
Interested in FPV flying with return to home capability.

Already have a Zephyr FPV airplane and am looking to building an Arducopter
Hometown:
Bemidji, MN

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Season Two of the Trust Time Trial (T3) Contest has now begun. The fourth round is an accuracy round for multicopters, which requires contestants to fly a cube. The deadline is April 14th.

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