Hi there,
This is Bogdan from Romania.
I'm a mechanical engineer - specialized in the industrial robotic field, 3D designer and modeler (from time to time and some projects I could make the functional prototype too).
I'm doing product design, industrial design, reverse engineering, ideation, etc.
I have over 15 years experience working on various systems/devices across multiple industries, from concept to launch.
1 - how deep is the holding lip?
2 - which is the value of the load to be supported?
3 - what kind of traffic over the manhole?
4 - what material you want to use and which manufacturing process? if is required for several manholes it is ok to use cnc milling but for large amount is advisable to think about cast iron
5 - besides the design i will provide you the manufacturing drawings and fea analysis
of course the price will be discussed upon clarifying all the technical details
Regards
Bogdan