I'm wondering - would it be possible to use the same arbor size throughout an entire clock (apart from the drum). Can I use e.g. 3mm arbor size instead of a mix of 3mm and 1/16?
Maybe. Friction will be higher, so the runtime will need to be reduced or a larger drive weight will be required. I have not tried it, mostly because 1/16" or 1.5mm is easier to work with and cheaper.
Retrofitting 3mm into one of my existing clocks requires either drilling out the holes or modifying the STLs.
Enlarging a 1.5mm hole to 3mm will take away 2 perimeters. Some of the larger clocks probably have large enough gear shafts to allow drilling them out. The frame might be best to print using 5 perimeters, so 3 will be left after drilling.
If you modify the STLs, then there will always be clean holes with as many perimeters as you specify.
Thank's Steve. I'm aware, that I will need to modify the print settings somewhat compared to the standard recipe. The reason is, that it's easier for me to source 3mm brass - which I probably will polish before use to reduce friction. what would you recommend as clearance for a 3mm arbor. I'm able to drill in .1 increments.
Maybe. Friction will be higher, so the runtime will need to be reduced or a larger drive weight will be required. I have not tried it, mostly because 1/16" or 1.5mm is easier to work with and cheaper.
Retrofitting 3mm into one of my existing clocks requires either drilling out the holes or modifying the STLs.
Enlarging a 1.5mm hole to 3mm will take away 2 perimeters. Some of the larger clocks probably have large enough gear shafts to allow drilling them out. The frame might be best to print using 5 perimeters, so 3 will be left after drilling.
If you modify the STLs, then there will always be clean holes with as many perimeters as you specify.