and i also really enjoyed the gamified aspect which encourages learning by rewarding you with experience points and levels upon completing lessons and even if you don't know where to start datacamp offers free assessments to personalize your learning recommendations whether you want to learn something new to get an edge for a new job or promotion or you just want to brush up on some old skills datacamp can help get you there use my link in the description and get access to the first chapter of any course NUMBER_TOKEN for free now back to the video last year i started running my first test this was my first semi-successful one i used to water bottles of reservoir and these little lure lock needles to test a few different nozzle sizes apologies for the poor footage quality but after no joke hundreds of tests run over a six month period and with the help of some crazy high-speed video capabilities of my cell phone i discovered a few very critical design constraints among the most important one don't use solenoids rated for air only believe it or not they aren't lying in the description if you put water through them they'll rust and seize it very quickly two too much back pressure like if the reservoir is too high up actually causes more problems than it can help and three a straight NUMBER_TOKEN gauge needle produces the optimal water drops for my application fast forward a few more months and i started building the frame of this device i used some leftover extrusions from previous projects and was able to bolt it all together surprisingly quick from here i added my water tank and a platform for my solenoid to sit on and then the fun really began up until now i'd been using mostly unmodified solenoid valves i attached the inlet to my water tank and the outlet to a NUMBER_TOKENd printed lure adapter but if i'm going to eventually be making NUMBER_TOKEN of these valves i wanted a cleaner simpler smarter solution i'd take apart one of the valves and discovered that it would actually be really easy to NUMBER_TOKENd print my own using my resin NUMBER_TOKENd printer this would allow me to relocate the inlet to allow tighter packing of the array of valves as well as directly integrate the lure adapter into the output rather than needing some tubing to connect them yeah this is definitely not going to take dozens of iterations and so i printed my first design but upon testing it i found that it was really really leaky it turned out to be the lure lock not sealing very well which was partially due to the print orientation and where i had placed supports and partially due to the design i could have tweaked it a bit but i had a different idea forget the needles resin printers are accurate enough to be able to just print the output nozzle itself directly or so i thought so out with the lure adapter and in with the printed nozzle and no more leaks after that successful testing i printed seven more i also printed this simple distribution block so i can get water to all the valves the solenoids were then primed using a very satisfying waterfall type effect
START_SPONSOR_TOKEN and i also really enjoyed the gamified aspect which encourages learning by rewarding you with experience points and levels upon completing lessons and even if you don't know where to start datacamp offers free assessments to personalize your learning recommendations whether you want to learn something new to get an edge for a new job or promotion or you just want to brush up on some old skills datacamp can help get you there use my link in the description and get access to the first chapter of any course NUMBER_TOKEN for free now back to the video END_SPONSOR_TOKEN