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Thanks for choosing the Hero Me Gen2! To your first question. The dial mount was made for a request, I do not have one to test. If you can provide me with pics and measurements of what needs to change, I'll fix it. For question two, if the mount pegs on your part cooling ducts are snapping off, that sounds like you are printing the cooling duct in the wrong orientation. All the cooling ducts should be printed with the front face of the duct down flat on the build surface. Use supports, but only from the build plate. With the cooling ducts printed in this orientation, the mount pegs should be a tight fit into the slots on the side of the base. The current mount pegs and the Hero Me base are setup for M3 screws to self tap. Given that you have a few hundred hours of printing with the Hero Me, maybe you've printed an earlier version of the parts?