Removable/twisting top part design for refillable 2 in 1 botlle

The case needs to be a functional case with two tracks: BASIC IDEA MODEL LOCATED BELOW (non-proportionate) The phone measures 123.8mm x 58.6 mm x 7.6mm The phone is an iPhone 5s The screen which is inches measured 4 inches diagonally must be unlocked on BOTH sides of the case i.e. (if I was to talk the phone out and flip it in the other side of the case the screen wouldn't be covered). The side where the power button is should have nothing on to of it. the tracks need to be 4 inches long with a 3 inch track inside the 4 inch track (Radio antenna idea). The tracks need to be hinged so that they can both stand up 90 degrees of the case and lay flat (it's okay if they cover the back open area). there needs to be a wheel inside the track that moves up and down the track vertically the wheel needs to connect outside somehow (like below) the wheel needs to follow the track to the bottom of the platform where the wheel will sit so that the hinged track does not hold the wheel when it lays down. any futuristic or modern design is accepted, however creative aspects are totally left to you as long as the design is functional.

i need the casing design to house the conceptual mechanical mechanism, aim of the 3D printer Robust, aesthetic and functional, very easy to use, a must have for anyone who wants to experience 3D Printing; almost all parts are 3D printed;

I have an Idea for a product which teaches beginning students to correctly insert the sax mouthpiece while playing and maintain proper breathing technique. The basis for this device is an incentive spirometer, which is already often used by wind instrument players. https://m.youtube.com/watch?v=ItJhrfJJrm8 This company has the same concept as me. I would like to take that concept and put it in a more compact and aesthetically pleasing device. The device will be made of hard plastic. Anything instrument related incorporated into the desighn will be nice. I will provide pictures of my BASIC desighn idea. I would like for the desighner to play around with the shape and form. But the elevated angle where the mouthpiece is inserted MUST be incorporated to allow the user to be able to blow and also view the ball. Also, the tiny built in ledge on the top front of the mouthpiece must also be incorporated as it will force the student to put the correct amount of mouthpiece in his or her mouth.

Hello, I have a Iphone 5 case design. I need it done in cad in order to get a quote on manufacturing the prototype, the case has four layers three of which have two parts. I need to get started on this ASAP. Thank you

We want a smartband design for our new product. The smartband should look modern and rugged. Should be composed of an monocrhome OLED 0,96'' 3 leds with different colours and 3 buttons aligned with the leds The buttons and the leds should be placed on the top of the device and not on the side as many watches. We would like to follow the colours of this band as it gives the idea of safety and of been rugged: https://toughphones.net/product/mtt-smartwatch-protection-tough-smartwatch/ The size should be close to 47x31mm but can be a bit different.