Help! Spare part for winter garden awning

Hello friends,
I am despairing, I need one of the 2 counterbalance gearboxes driven by the motor for my electric winter garden awning with counterbalance system and chain. (This brown part in my hand with the broken plastic gear inside).
>Unfortunately, I do not know which brand this is. I would be very grateful if you could help me, maybe someone knows where I can get something like this, or who the manufacturer is/was. (It is no longer the newest system)

Thank you very much for your help! Best regards, Peter
>

Hi,

I need one of the 2 counter-pull gear units driven by the motor for my electric conservatory awning with counter-pull system and chain.

The first place to look would be eBay or the classifieds version of eBay, although it depends on the keywords you use. But that will be difficult and you have probably already tried that.
A few more exotic ideas: search for places under the keywords "Repair Café, Repair Bar, electronics consultation hour, repair meeting, electronics hospital or Café Kaputt," where dedicated hobby tinkerers might help or have new ideas. They could help you ;-)

- On the motor’s nameplate, I was able to read the company Dunkermotoren; they manufacture roller shutter drives (and also motors), maybe they even built this assembly or might still know which manufacturer it was back then. A slim possibility, but asking costs nothing.

- From now on it could get more expensive: under the keyword "3D printed spare parts" you can find information about making spare parts with a 3D scanner and 3D printer. That would be quite a feasible alternative. However, the color of the gear suggests it is made of polyamide (commonly: nylon). It is certainly a heavily loaded part. Whether that stuff prints well, I can’t say. There is also selective laser sintering, whether that is an option and affordable is the next, but usually more important question.
If so, you would scan the part with a 3D laser scanner, complete the missing areas, and then pass the data to the printer. These are procedures already considered or used by aircraft manufacturers and also manufacturers of medical products. Nearby us there is the company SLM Solutions Group AG, which works with metal powder. But that is just a general idea—ultimately it has to remain affordable. They operate in a higher league.

But please don’t expect that the inconspicuous little part, which in the original series production probably cost in the low double-digit cents or pennies range, will cost in the same order of magnitude. The remanufacture can quickly reach the 100 euro range. You have to decide for yourself whether a repair is still worthwhile or if conversion to another drive is possible.

Kermit