77mm to 144mm MICRO QUAD FRAMES

If you are looking for some great performing lightweight 100mm to 200mm brushless frames, check out the Rocket Quads store. 

If you have any questions about a particular design here, feel free to email me.&n...

CF793 frame for H8 mini FC


Price : $ 5.92













Description

EDIT: April 24 2016 - from now on all Armattan Productions frames will be cut from MATTE FINISH carbon fibre. When you order this frame, it will come in matte finish, not glossy as specified above.

93mm diagonal frame in 1.5mm carbon fiber, designed for the H8 mini FC but will take other FC's.

Motor hole size is 7.0mm, weighs 2.35gm. Build pics:



Suggested PID's to start with if using the silverxxx firmware:

float pidkp[PIDNUMBER] = { 11e-2, 11e-2, 8e-1 };
float pidki[PIDNUMBER] = { 9e-1, 9e-1, 4e-1 };
float pidkd[PIDNUMBER] = { 5.5e-1, 5.5e-1, 4e-1 };

 

EDIT 30th May 2016 - it appears the newer H8 mini's are being shipped with a new blue pcb and this blue pcb is now flashable with the silverxxx H8 mini blue firmware. There are reports that the white H8 mini from Banggood is still being shipped with the green pcb. The blue pcb (and the H101 pcb) have an on-board battery connector, so if you want to mount the pcb on top of the frame, the battery connector will have to be removed and flying battery leads fitted. Alternatively the pcb could be spaced higher above the frame for connector clearance, or the pcb can be mounted underneath the frame, which also makes the LED's more visible (especially for night flying).

I tuned a friends CF793 recently that was identical to mine except the Syma 7mm motors were from a different manufacturer. We ended up with these PID's, very different to the settings on my frame listed above. Therefore expect some trial and error to find the right settings for your quad.

float pidkp[PIDNUMBER] = { 10.0e-2, 10.0e-2, 8e-1 };
float pidki[PIDNUMBER] = { 3.0e-1,  3.0e-1, 4e-1 };
float pidkd[PIDNUMBER] = { 6.0e-1,  6.0e-1, 4.0e-1 };

 

Additional Information

Assembly instructions: Note that the frame is not symmetrical and that the rear of the frame (where the battery leads are attached to the FC) is the thinner section of the frame's inner square section. The motor is supported by clear PVC tubing pieces about 3mm in height and approx 6mm (1/4") diameter, both above and below the frame. The tubing can be pre-stretched before sliding over the motors if it is too tight. Slide the piece of tube over long-nose pliers with the jaws closed, then open them up to stretch the tube a little.

When mounting the FC, first make sure you know which is the front and which is the back of the FC and the frame. Then align the FC arms exactly with the frame arms. The double-sided tape is used on the FC arms only, and does not cover the LED's at the tips of the arms. I suggest Syma X5C motors and Hubsan or JJ1000 props.

For acro/rates mode using the H8 mini green board, see this thread, this firmware flies very well. http://www.rcgroups.com/forums/showthread.php?t=2512604

Flight controller: 

The H8 mini green pcb can be flashed with silverxxx firmware to enable acro (rates) or level mode:
https://github.com/silver13/h8mini-testing

The H101 pcb can be flashed with silverxxx firmware from here:
https://github.com/silver13/H101-acro
The instructions are here in the first post:
http://www.rcgroups.com/forums/showthread.php?t=2512604

The H8 mini blue pcb can be flashed with silverxxx firmware from here:
https://github.com/silver13/H8mini_blue_board

For the CG023 and other FC's using the STMF031K4 processor the code is here:
https://github.com/silver13/CG023
The instructions are here in the first post:
http://www.rcgroups.com/forums/showthread.php?t=2634611#post34381034

These flashed FC's can be flown with a stock tx or Bayangtoys X9 tx, but it is a much better experience to use a Devo tx that is compatible with Deviation firmware, and fit it with a nrf24L01 module. Or you can use any other hobby grade tx (with a PPM trainer port) with a Goebish multiprotocol module, or you can build a multiprotocol module yourself.

Visit the Silverware wiki for more info on silverware:
http://sirdomsen.diskstation.me/dokuwiki/doku.php

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