Antsiranean
Quarry Creeper
It is happening! My Yeti, who started out as a mere idea, will soon be born into the material world. The delivery will likely take a month or two, but unlike the case of real childbirth, the process is going to be a pleasure.
And his name shall be Snowman (the abominable). Of course. Graphics will be a tribute to the Yeti and to Nepal. Hopefully, since I haven’t painted a lexan body in 25 years.
Before I continue I would like to thank all the people who've helped me out so far. DavidH, magic_yeti, mikemcE, shiftauto and Shinchu - I really appreciate your input.
The discussion that led to this particular set of parts can be found in this thread, but I’ll outline my thinking below for the reader’s convenience. It is probably, hopefully, overbuilt with lots of upgrades for durability. An option would of course be to upgrade things as they brake, but since I live in Sweden delivery from the U.S. often takes two or three weeks and I would just hate to spend my time waiting for parts, instead of driving. I want it tough from the start. I’ve tried not to go way overboard with aluminum parts, since there ought to come a point when too much aluminum adds too much weigth, which in turn would make things break easier. Hopefully I’ve found the right balance. I want function, not baling.
Intended use is mainly as a trailing rig, occasionaly doing some light crawling and some light bashing – simply put: a good all round rig. A holy grail, I know, but hopefully a pretty good shot at finding it.
Motor and ESC
Tekin PRO4 Heavy-Duty Brushless 2-3S 3000kV Motor, 145$. High speed, high torque and more efficient (running cooler at high speeds) than the ROC412, if I got it right. The 2-speed should help give me all the control I will ever need at crawling speds. Check out this thread for an interesting discussion. HH Puller Pro would have been an alternative had I lived in the U.S., but I don’t. Ended up too expensive.Castle Creations Mamba X Sensored 25.2V WP ESC, 145$. Seems to be the golden standard. This review by rcdriver is a good read
4mm bullet connectors, three sets, 12$. For connecting motor to ESC. Was about to miss out on this one.Tekin 12AWG wire, 10$<o>XT60 Connectors, 7$. I have Deans on my other car and am not very satisfied with them. They get stuck to easily. Time to change to something else and lots of people seem to be very satisfied with XT60. Since I drive on my own borrowing batteries is not an issue. Should it ever be, I'll make a Deans - XT60 adapter.
Steering servo
Xpert 7701, 99$. Plenty strong (380 oz-in @ 7,4V; 485 @8,4)and waterproof according to IP67
Castle Creations BEC, since the receiver only handles 6,0V and I want to run the servo at 7,0 or 8,4 V.
Bypass adapter, to power the steering servo directly from the battery, bypassing the receiver. Should save me some soldering, as far as I can understand.
Radio and receiver
FlySky GT3B. I have one already. Certainly good enough. Since the receiver only handles 6,0V, I am getting a BEC to power the steering servo.
Servo for 2-speed transmission
Savox 0231MG, 37$. Waterproof, strong enough and popular in this application.
servo reverser, 9$. Since transmission and aux-wire will run in parallell. Without this one, it seems as if crawler mode will be enabled in 2nd gear and race mode in 1st.
And his name shall be Snowman (the abominable). Of course. Graphics will be a tribute to the Yeti and to Nepal. Hopefully, since I haven’t painted a lexan body in 25 years.
Before I continue I would like to thank all the people who've helped me out so far. DavidH, magic_yeti, mikemcE, shiftauto and Shinchu - I really appreciate your input.
The discussion that led to this particular set of parts can be found in this thread, but I’ll outline my thinking below for the reader’s convenience. It is probably, hopefully, overbuilt with lots of upgrades for durability. An option would of course be to upgrade things as they brake, but since I live in Sweden delivery from the U.S. often takes two or three weeks and I would just hate to spend my time waiting for parts, instead of driving. I want it tough from the start. I’ve tried not to go way overboard with aluminum parts, since there ought to come a point when too much aluminum adds too much weigth, which in turn would make things break easier. Hopefully I’ve found the right balance. I want function, not baling.
Intended use is mainly as a trailing rig, occasionaly doing some light crawling and some light bashing – simply put: a good all round rig. A holy grail, I know, but hopefully a pretty good shot at finding it.
Motor and ESC
Tekin PRO4 Heavy-Duty Brushless 2-3S 3000kV Motor, 145$. High speed, high torque and more efficient (running cooler at high speeds) than the ROC412, if I got it right. The 2-speed should help give me all the control I will ever need at crawling speds. Check out this thread for an interesting discussion. HH Puller Pro would have been an alternative had I lived in the U.S., but I don’t. Ended up too expensive.Castle Creations Mamba X Sensored 25.2V WP ESC, 145$. Seems to be the golden standard. This review by rcdriver is a good read
4mm bullet connectors, three sets, 12$. For connecting motor to ESC. Was about to miss out on this one.Tekin 12AWG wire, 10$<o>XT60 Connectors, 7$. I have Deans on my other car and am not very satisfied with them. They get stuck to easily. Time to change to something else and lots of people seem to be very satisfied with XT60. Since I drive on my own borrowing batteries is not an issue. Should it ever be, I'll make a Deans - XT60 adapter.
Steering servo
Xpert 7701, 99$. Plenty strong (380 oz-in @ 7,4V; 485 @8,4)and waterproof according to IP67
Castle Creations BEC, since the receiver only handles 6,0V and I want to run the servo at 7,0 or 8,4 V.
Bypass adapter, to power the steering servo directly from the battery, bypassing the receiver. Should save me some soldering, as far as I can understand.
Radio and receiver
FlySky GT3B. I have one already. Certainly good enough. Since the receiver only handles 6,0V, I am getting a BEC to power the steering servo.
Servo for 2-speed transmission
Savox 0231MG, 37$. Waterproof, strong enough and popular in this application.
servo reverser, 9$. Since transmission and aux-wire will run in parallell. Without this one, it seems as if crawler mode will be enabled in 2nd gear and race mode in 1st.
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