Thermoformed part

[brin]

I'd like a bit of guidance on thermoformed parts.&nbsp;&nbsp;The shop built two sets (8 total) of thermoformed panels to replace damaged parts several years ago.&nbsp;&nbsp;The molds were based on dimensions from the damaged parts.&nbsp;&nbsp;The parts were built from .100 thick Kydex 100.<br><br>Now, they want a drawing (my job) to send out for manufacture.&nbsp;&nbsp;Also, I am not familiar with thermoforming.&nbsp;&nbsp;&nbsp;Is there a standard method to determine loss of thickness when drawing the sheet into the mold?&nbsp;&nbsp;What other considerations do I need to be aware of?&nbsp;&nbsp;<br><br>Thanks