Freelance Engineering Contests & Projects

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Designing a Gear lock mechanism

I have two simple spur gears that I want design a lock mechanism for them. The lock shall be engaged with one of these two spur gears and prevent rotation in both directions (both...
  • 12 designs
  • Ended
  • Payment Pending
Under $1,499

Private Project Featured Blind

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  • 42 designs
  • Ended
  • Prepaid
Under $799

40’x40’ steel podium Blind

Need a structural steel design for a 40’x40’x 12’ high podium to support a 2 story wood frame house. Metal deck on c purlins and 3” concrete to be poured on metal deck....
  • 8 designs
  • Ended
  • Prepaid
Under $1,499

improve my Car Air Freshener I already have STEP files Featured Blind

We are looking to improve our car wax melt warmer air freshener. We just got our patent just trying to make improvements. It plugs into the 12V car cigarette lighter. Needs...
  • 12 designs
  • Ended
  • Prepaid
Under $799

Private Project Blind

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  • 6 designs
  • Ended
  • Prepaid
Under $799

4 DoF mechanical arm mounted on a tripod

We want to design an arm which can be mounted on a tripod as shown in the attached image. The total length of the arm is going to be 1.5m from pivot to end effector. For the...
  • 38 designs
  • Ended
  • Prepaid

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Under $799

Private Project Blind

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  • 26 designs
  • Ended
  • Prepaid
Under $799

Dual-Directional Locking mechanism for precision motion control Blind

--Short Summary-- Design and model an addition of a secondary dual-directional locking mechanism for maintaining a platform’s slope angle in an event of a high spike/impact load...
  • 13 designs
  • Ended
  • Prepaid
Under $1,499

Donkey Calf Raise attachment Quick Connect Blind

This contest is to design a fast way to connect and disconnect the Donkey Calf Raise attachment to various size smith machine barbell shafts. The Donkey Calf Raise attachment is a...
  • 80 designs
  • Ended
  • Prepaid
Under $799

box makers lock

a fancy jewelry box worthy mortised decorative lock with key
  • 16 designs
  • Ended
  • Prepaid

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