It could be simple - it could be complex.
I've got literally 10s of thousands of hours in 3D CAD design under my belt. Have a BE and ME degree in mechanical engineering (of which I taught SolidWorks for 4 semesters) I'm proficient in DS SolidWorks, Autodesk Inventor, and CATIA. I am competent in the principles of good GD&T, and can provide drawings, STEP files, STL files, or whatever output you would like for your project.
I can't really go into too much detail about recent projects because of NDAs and work related things (though I'll try to crop out some stuff), but I do have some work from school that I can share for an example.
https://i.imgur.com/9tZnuh.jpghttps://i.imgur.com/oTXJi.jpghttps://i.imgur.com/GME86.pnghttps://i.imgur.com/xkSzK.pnghttps://i.imgur.com/3pkfY.pngSo if you have anything you want/need designed (be it for school, work, or hobby) drop me a line and we can work something out I'm sure.
You can then take my designs to use with ponko, makerbot, or a machinist to have them fabricated (if you need help with this step I can act as an intermediary/liaison to whatever design house you want, or give you the STL/IGS files so you can take care of it yourself)
Looking forward to working with any of you.