Vending Machine

coin and all will change by time. mobile swipe will do and it can cost for device and  payment portal 200usd, and body 200usd, controller and dispenser 500 usd

Thanks for the offer but I want to figure out how I can build one myself, just for fun and personal use.

Sorry it is not an offer. it is just my information. i am in the process of making it. thats why i figured you. For coins you can use readymade coin collectors or you can do with a camera and opencv. for ejection you can use linear actuators available in market (or u can make one with dc motor with screws and nuts) and some microcontroller for integration

I like this concept. I believe this could be quite a simple DIY project depending on the style of vending machine you are referring to.

The most common being the classic machines that use corkscrews to dispense the snack of your choice.

The cost however is dependent on how customized you want it, size, parts used, etc.

A simple parts list that springs into mind that I believe is cost effective for a build such as this would include:

• Lightweight but durable wood for the case. ((Aluminum if you have access or want a more realistic look.) (Plexiglass if you want it to be transparent.))
• Plexiglass for the front allowing you to display and see the different snacks available.
• An Arduino could be used for the electronics.  Small, lightweight, cost effective, and easy to program.
• DC Motors or Servos could be used to rotate corkscrews.
• Momentary switches for selection buttons. (There is a broad selection out there)
• Optional: A coin mechanism could be used to send a trigger signal to the Arduino to allow a selection to be made.

Concept; When a coin is inserted, it activates a set of code on the Arduino allowing signals from the momentary switches, telling it to run a designated code to then power the corresponding motor or servo thus dispensing the snack of your choice. Once the signal has been sent to the Arduino to activate the corresponding motor or servo, a separate set of code would disable the momentary switches, preventing another selection from being made without another signal from the coin mechanism, ie another coin is inserted.

This is just a simple concept I thought of based on your idea. Different parts could be used of course, which really depends on what your feel more comfortable using or what is more cost effective and of course you would need some knowledge of coding to program the Arduino. If not, there are plenty of people out there that I am sure would be more than happy to help you with the programming portion of the project.

I hope this all helps.

Look on arcade part supply shops for a cheap coin mechanism that can be easily interfaced with a microcontroller.

You sound like a very capable person. I would like to discuss an idea I have, but do not want to post it on any sites. Could you please contact me at robinbrigante@yahoo.com if it is allowed. Thank you.

Robin