RoelA Forencamper

  • Mitglied seit 11. April 2019
Beiträge
53
Erhaltene Reaktionen
1
Punkte
271
Profil-Aufrufe
206
  • Hi, I have as well a 2022 Deseo. Really satisfied, just the bed….

    I’m planning now to upgrade to electrical movement. How did you realize it ? You kept the 2 gas-springs and put the actuator on the other side, or you did you replace the gas-springs? One actuator, or two synchronized?

    Would be great if you could give me some hints how you realized it.

    Thanks

    Jens

    • Hey Jens,


      Yeah the bed is a bit disappointing right? Upgrading to electric is worth it, but quite the project if you are up to it.

      I did a full automated system. But you can also start simple with just an actuator and pushbutton.


      Anyway, i kept the gas springs to provide support, and placed a single actuator opposite the gas springs. It fits almost exactly in the available space there, with a couple of custom made brackets to hold it all together. Its a 18" actuator with 220lbs of force.

      I wouldnt go much lower than 220lbs of force, especially if you have lots of weight in the storage compartments underneath the bed.


      You could perhaps do a double synchronized actuator setup, but im not sure if the space is sufficient for that. The steel cables could interfere.


      By going with just one actuator, the force applied to the sliding plate is at a bit of an angle (not perfectly in line with the gas springs) but it seems to work just fine like that. The result of just one actuator is also that you cant just load the bed with weight (jumping on it for example) when the actuator is carrying all the force. That would overload the actuator for sure. So to prevent this i went with a fully automated system that handles the entire movement automatically and can detect when the lock isnt engaged properly.


      Hope this helps a bit. Let me know if you need more information.

      By the way, where do you live?


      Best regards,

      Roel

    • Hi Roel,

      thanks a lot for this very interesting Infos. Wow, what you did is looking very professional. I had the same concept in mind, with concerns that one actuator which is not connected in the middle could get a torque on the slider which could be bad for the durability, or even get jammed . I wanted to try it first with a cheap actuator, but if it works for you I could skip this step.

      The other issue I thought about is the locking system. I wanted to keep it, to release the actuator from the force. The actuators are self locking , so even you’re going to lock, the force is still on the actuator. I thought about an torque controller, but this needs then a control unit which is far from being simple.

      How have you solved this issue ?

      Which actuator and control unit did you use?

      How did you produce the mechanical connectors? Do you have a CNC milling machine? Questions over questions☺️

      Where are you from? I’m living close to Karlsruhe.

      Would you eventually sell the system or components?

      And last but not least, which bike are you riding 🏍️?

      Best regards Jens

    • Hey Jens,


      Thank you! It was quite the project indeed, spend a lot of time on it ;)


      The single actuator setup isnt ideal, but the construction is holding up just great. And ive cycled it a couple of hundred times for now. Occasionally it needs a little bit of grease added to the sliding surfaces.


      The way i manage the locking system is as follows:

      A solenoid opens and closes the lock. When a movement is started, the lock is opened. Then when the movement is almost finished, the lock is closed. The actuator then actually pushes the bed firmly in to the locking mechanism with a certain torque (to be sure the locking mechanism is engaged properly). Then the actuator moves up a tiny amount to remove all the loading force from the actuator. This still keeps all the force directed to the locking mechanism if you were to lie on the bed or when traveling on bumpy roads.

      Ive designed the controller completely from scratch for this purpose. Im actually an electronics engineer, with some affinity for mechanics (cars, bikes etc.)


      The parts are all 3d printed. Ive used materials and design principles to be able to cope with the forces involved. I was actually quite amazed by how strong 3d printed parts can get!


      Ive thought about selling the system as a kit. But it would be rather expensive. Just in parts alone you are looking at something like 500 euros. That would include everything like the actuator, mounting brackets, controller with solenoid, end switches, mechanical and electrical cabling, cable guides, control panel, drill guides, etc. And then there is the labor and time involved for the 3d printing, electronics assembly, mounting instructions, operating manual, etc. So by the time the kit is complete, you are looking at something like 1000 euros. I wasnt sure this would be affordable for anyone. Also considering the low amount of Deseo's on the road. And I also have no idea if it would even fit newer Deseo's, maybe Knaus modified the design over time, given by how crappy the mechanism was working in the first place. But hearing your story, they probably didnt change a thing...

      But hey, if you are interested? Maybe we work something out?


      Anyway, ive posted a couple of pictures in the public topic. Ill try to make some more later in the day.


      So, Im from the Netherlands. And ive sold my bike actually! I got more interested in EMTB in the Alps and Pyrenees, and that gets rather expensive as well. So no motorcycle for me any more...


      Best regards,

      Roel

    • Hi Roel, now again on the Pinwand. Your offer sounds great.

      One more question: the locking system would be included? Not clear for me how it is working and which components are needed. The program of the controller could be adjusted or tuned if needed?

      Please make me an offer with a bill of material. Again, many thanks for your great support. Don’t worry about the timing. Winter is coming 😂 Regsrds Jens