Three-step folding ladder 2

Turn the yellow and beige frames to fold or deploy the ladder.
The yellow frame, blue steps and pink bars form a parallelogram mechanism.
There are V-shaped grooves on the back of the top step to lock the ladder in the deployed state.
This video is made based on video
• Foldable 3 step alumin...
STEP files of this video:
www.mediafire....
Inventor files of this video:
www.mediafire....

[@TheChannelaaa]

Thank you for always sharing ur designs and for inspiring us..

[@ikademi73]

Sir, I am in difficulty to make a contraption and I couldn't find a solution among your designs. Is is possible for you to help, please? If so, how can I send sketch to explain the idea.

[@thang010146]

My email: [e-mail]

[@ikademi73]

@@thang010146 I sent it. Thank you.

[@skylerbowerbank5847]

Being completely honest, i enjoy seeing your designs and watching them work
But some of them (this one specific) I worry how practical they are because i imagine the force vectors and feel like they would be inferior to designs more commonly in use, such as this step ladder
Just my opinion and no disrespect meant

[@skylerbowerbank5847]

Despite my criticism, I hope you keep up the good work

[@thang010146]

Any constructive criticism is welcome.

[@harrysvensson2610]

You may misunderstand the design
When unfolded, all the steps are resting on the top step through the pink linkage. It's not resting against the green linkage.
So when a person climbs the ladder, the green linkage doesn't take the load.