I printed the original model which was very good but i needed more height and a bigger base to use the microscope to do precision SMD components solder works also my microscope has a larger diameter therefore i needed a new bracket also. 

Please be aware that the microscope clamp is a very tight fit so you may want either to sand it or heat it to ease the insertion of the microscope. 

Final notes the “wrinkles” on the rack are due to my print settings and sorry for the Gaussian blur but my desk is a mess.