CYC Photon 3D models and settings sheet

[Jonna Till Pysslet]

Hi all!

Have been working on this project last weeks and thought to share it if someone else is interested.

CYC Photon complete motor assembly with brackets, spacers and crankshaft. Some other random 3D models related to that. Like a simple bash guard for the motor.

Feel free to use for your own designs:

CYC Photon Collection by Bent Derailleur | Printables.com




And I also made this settings sheet to be able to record the settings and compare to stock ones just by a glance, it is an Excel sheet in zip file. See attachment.

 

[biphaeboh]

Cool. Don't know if I can make use of this, but nice to see.

 

[Jonna Till Pysslet]

Cool. Don't know if I can make use of this, but nice to see.

Thanks mate, glad to hear!

If you ride offroad I can really recommend some bash guard. I have hit rocks many times with my BBS without some at all. But would not like to do it with Photon. That was main reason why I did this.

And to make sure the community stays alive, I noticed there are not too many designs for this motor. It deservs better!

 

[biphaeboh]

Yes a bash guard is a good idea. I had a friend weld me up a steel one for my BBSHD.

 

[hindesite]

Hi all!

Have been working on this project last weeks and thought to share it if someone else is interested.

...


And I also made this settings sheet to be able to record the settings and compare to stock ones just by a glance, it is an Excel sheet in zip file. See attachment.

Nice, did you get your throttle settings after calibrating?

Down here in NZ we are technically limited to 300W, no throttle, but also no speed limit. Yet kids ride around on 80kph+ 4kW escooters on footpaths, without helmets. Makes our Photons seem really quite lame (but I like mine).

 

[Jonna Till Pysslet]

Nice, did you get your throttle settings after calibrating?

Yes, if you enter the throttle menu the numbers are there.

Down here in NZ we are technically limited to 300W, no throttle, but also no speed limit. Yet kids ride around on 80kph+ 4kW escooters on footpaths, without helmets. Makes our Photons seem really quite lame (but I like mine).

Yes, we have 250W/25kph/nothrottle. But the eKicks have 250W/20kph limits, so eBikes are still faster

 

[rscamp]

Awesome Jonna. That spreadsheet will be helpful. And already in Canadian units. Cool.

With regard to auxiliary parts, I designed a speedo mount and an anti-rotation bracket assembly that is strong enough to take the torque reaction force.

The speedo mount is custom to mount to the steering arm of a recumbent trike. I originally machined one out of 1/2" plastic sheet but replaced it with an ABS printed version as shown.

The just 0.090" thick aluminum anti-rotation bracket withstands the approx. 300 lbf exerted by the 110Nm Photon at the torque arm fixing point to the boom of the trike. This design (with the thin plate) was cut on a CNC router and to avoid cyclic bending stress requires a rigid clamp connection to the boom as shown.

On a recumbent like this a mid drive motor like the Photon can rest up against the derailleur post to counter the reaction torque much like it does on a diamond frame. But this partially blocks the location used for mounting a light (and horn in my case). It also increases the overhang length for the added weight on the boom and imakes the centre of gravity higher. So I much prefer having the motor locked in below the boom.

 

[Jonna Till Pysslet]

@rscamp : wow, that is great! Yes, some metal bracket would have been preferred. Yours look really great!

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And btw, If anyone else has some some designs, feel free to share

 

[A-DamW]

... and an anti-rotation bracket assembly that is strong enough to take the torque reaction force.

Very nice engineering and execution!

I see so many people on other forums dealing with torque reaction on mid drives(bafang, etc)
and it seems like the most recommended solution is "tons of locktite" and "tighten the nut to 7000ft-lb"
which is the least mechanically advantageous solution.