Spent half an hour latheing yesterday and made a new nozzle for my West Coast Hybrids I-motor. Won't call it an I110 anymore because it will not run at 110N avg. thrust anymore
Standard nozzle is 8mm/0.315" and the ferrule (?) compresses the fill hose to ~2mm/0.078" giving it an Ae/At of ~1:16. When using a push fitting instead, the full ID of the fill hose (2.7mm) is used, i.e. injector area increases quite a bit. Also the high Ae/At gives it quite low chamber pressure so I went for a 10mm/0.39" throat giving an Ae/At of 1:13.7 which should increase chamber pressure a little. ABS grains will be printed tonight and hopefully my solenoid will arrive before the weekend so I can fire this on sunday!
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