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glowytheglowbug
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Everything posted by glowytheglowbug
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by that logic im guessing a XL actuator's degrees per mm can be gotten from that measurement ill continue to test my actuators and see if they work that way small actuator = 7112retract , 7226extend, 7144retract, 7187extend, 7169retract, 7151extend large actuator = 9703 extend, 9694retract, 9689 extend, 9709retract, 9689 retract , 9665 extend these are 5 readings i got from testing (theres prob like 10-20 degrees error since it relies on me waiting till the actuators clutches provinde enough torque for me to see movement on the output) -
ooh thats interesting i have to check how many degrees to LA length again for the large actuator (i might have gotten a different reading from using a slightly damaged actuator)
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measures small again its 7157 degrees so its pretty accurate
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7160 degrees seems to be the limit for a small linear actuator, (7 to 10 studs) 71.6 degrees per millimeter (50x0) (remember to have something tensioning the output or else u get backlash) 9649 degrees seems to be limit for large actuator (11 to 16 studs) 241.225 degrees per millimeter (33x3) i cant find my XL :/
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aww i just want a 10+cm diameter wheel that works with those big rims :( everything seems to be out of stock
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https://www.amazon.sg/INJORA-Crawler-Rubber-Tires-120mm/dp/B07KXDB8JN/ref=sr_1_1?keywords=Wobekuy+4+x+120+mm+1.9+Rubber+Tyre+Wheel+Tyres+for+1%2F10+RC+Crawler+Axial+SCX10+90046+AXI03007+TRX4+D90&sr=8-1 is this the same item?
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just a simple place to deposit how many degrees it takes from the input to fully extend and contract a linear actuator (ill be posting them soon)
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damn that's really impressive good job!
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whats the diameter?
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got link?
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probably should have done that buy anyways the basic logic is there problem is it is kind of a stuttering engine (and the code does not work)
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this is the current code for my linear actuator engine (this is for the small one)
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mhm i actually did think of some way to use a force sensor on each linear actuator to sense which position it was at, then realised its not rlly able to be done easily and is expensive as heck
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yep only problem is that lego is plastic and plastic bends easily
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heya woah theres a ton of replies, i dont have any formula for calculating speed or anything and my current code is quite simple, it uses david's formula to set all motor's relative position and then i make motors go to a certain relative position based on the output shaft angle + 5 degrees main reason for gluing the la clutches shut is if they slip too much they basically will not go over the dead spot in the engine and thus try to oppose motion, breaking itself
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yeah i have a broken ish linear actuator (not rlly broken tho since its just the plastic bit on the end that didnt want to live and just cracked in a few pieces) i think i can use those injection needles and really thin super glue are there any kinds of superglue that wont melt plastic? or react with the grease and stuff to melt everything
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Damn seems doable, i forgot but does the orange piece have a hole all the way through? or could i drill out a tiny hole, use a strynge to insert a bit of superglue and maybe? :/ not sure tho
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can i make the clutch in a linear actuator stop slipping totally? its for my linear actuator engine which needs high precision
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oh woah that looks pretty good! only prolem might be parts shaking loose while going offroad
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Hydrostatic drive
glowytheglowbug replied to Kman860's topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
pretty interesting i have thought of it before but forgot about it -
[app] MOC Commander
glowytheglowbug replied to nvsukhanov's topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
ooh kinda like pybricks i guess, thats cool! maybe all mindstorms hubs can also be supported ? -
how would i keep getting the actuator to the L position though? do i get the position of linear actuator from the encoding wheel and then keep making the stuff move to the exact position? still kinda confused on the whole thing (update i did create a gearbox for it lmfao) i got it :D tysm! im going to use this to set relative angle for motors at the start and then will try getting it moving :P
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absolutely love your builds i might try something like that thanks for the code!
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i mean u might be able to use PU to do that but for PF i dont think so unless u get the signal from an IR reciever, send it thru an arduino and control respectively
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wdym?
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