"Thank you Forrest, the frame is ready now according to your great support!Quadframe.JPG"

"I got my new pixhawk now and updated the firmware to 3.3.3. but I can not find the source code zip file arducopter 3.3.3  for modifying of the apm_config.h. and app_motorquads.cpp.
any help appreciated.
Further on if i have changed this file i can…"

"ok, that means i can still use the ArduPilot-Arduino-1.0.3 
Firmware Compiler to make the motor code changes from the cad.xlsm file and upload it to the pixhawk?"

"@Forest, Thank you!
If I change from ardupilot to Pixhawk do you have experience?
Any How too for compiling and changes of codes from your CAD.xlsm file?"

"Thanks for your link.
Forest is it possible to have the dxf file to cut in 3 mm carbon balsa sandwich for 16/19 mm motor fixes? I am using the rctimer 2814 motors. thanks in advance"

"I like your test facities and watched the video too great forest,i would appreciate you go ahead with it!
BTW your excel performance with connections to sensors is outstanding i liked to know how you did that!
 somewhere I read  in your blog that…"

"In your excel file you are using very small Minimum Prop to Prop Spacing, do you really recommand 0.1" spacing? Interferences could have a great influence! Some people recomand 27% of Prop size, what is your advice?"

"hi Forrest, in the meantime i read most of your points in this forum, just fantastic!
I got 2216 scotch in switzerland. The carbon tubes i will get from here:
http://www.carbontubes.eu/
carbon balsa also in switzerland. I try to build your x2 built…"

"i prefer your balsacarbon mounts to make an octa!leave the idea of alu x fixation!
then i take your advice for the scotch 2216.
So can you supply me the 4 motor mounts and the 4 motor/x mast combination for zip fixation?
Let me know your costs? I…"

"Nomex core carbon sandwich i was planning to use for the EP! Not for Motor mounts, there i like the balsa solution.
I can get the scotch 2216 see in switzerland:
http://www.mouser.ch/Search/ProductDetail.aspx?R=EC2216virtualkey51...
some recommended…"

"Thanks Forest for the file, I am looking for mounting motor and tube plates as you have used. Is it possible to buy from you these g10 pieces or do you have cad files to let it cnc produce from china? motors will be hp2212 1000 kv and 12 mm tubes…"

"Hello Forrest
with great interst I follow this forum and learnt a lot! Sorry for my english.
My question where do I find your excel file for the motor calculation.
I have some HP2212 1000kv from rctimer left from my quad and i like to fix them on a…"