If you're working on something special that's a product of your inventive mind, you've got to make sure that you get the credit for exclusively using it - or selling it. The best way to achieve this is to apply for patent. Seeking the aid of a patent lawyer will make sure that you are not missing on any processes that need to be followed or else you might experience unnecessary delays on its approval.
Once that's taken cared of, you'll be more comfortable dealing with plastic injection process providers to come up with a high end prototype of your invention. You'll be more at ease in getting the services of digital prototype providers if you're patent has already been approved. In a snap, you'll get a 3D image and detailed mold of your invention through the use of plastic injection process.
As another precaution, you can ask your plastic molds and digital prototype providers to give you a signed non-disclosure agreement. If they have no problems with giving in with this request, it's a good sign that you are working with honest people. Remember it's your invention that's on the line - so at least you get to earn something from it - exclusively.
Rapid application and immediate turnaround of your mold order is possible if you already put it in a 3D CAD files. But if technical drawing is not one of your strength, you can also ask a professional to transform the image of your invention in STL or IGES files - but again don't forget to have non-disclosure contract signed too. Once you submit your prototype order in CAD files, rapid application will ensure that you get your mold in no time.
Keep in mind that prototyping your invention can be quite expensive so you have to be in close touch with your provider to ensure that you get everything that you need. A good prototyping company must establish an open line of communication and must be always ready to take in your queries or suggestions. Remember that you'll be required to pay top dollar and at least they provide you with a channel to get in touch with them anytime.
There are different factors that are usually considered when it comes to the price. Usually, providers put a weight on your assembly requirements - this includes the quantity of parts that will be needed and your turnaround time requirement. The volume and weight of your order will definitely affect the cost as well. Overall, it will be based on the 3D drawings of your invention.