The Craftmans Shop > Radio Control Models
Another Bruder conversion
ddmckee54:
Christmas presents for the kids in several families this year will be something a little different. A couple of years ago I armed the kids with rubber band guns. They have to be able to defend themselves during the zombie apocalypse don't they? Think about it, in ANY of the zombie movie you've ever seen have you ever seen one touch a rubber band? What I am doing this year is making an RC conversion of the Bruder cross country Jeep. I've attached the stock Bruder picture of the toy. My goal is 2 channel RC control with minimal changes to the appearance of the Jeep.
This will be a quick and dirty easy conversion. It better be, because I've got a Christmas deadline and I'm on the clock here. I'm making 3 copies of this Jeep, well 4 if you count the prototype. I've got to make sure it works don't I? That require rigorous testing, right? Besides it's just not right to give a kid a used Christmas present - is it. Properly tested is one thing, but used is quite another. Anyway, that's my story and I'm sticking to it.
I'm presently gathering the Jeeps, I've got 3 and I should be able to get the 4th tonight. Radios, ESC's. battery packs, and other miscellaneous stuff ordered from Ebay and other friendly sources has started arriving.
I've got the 3D printed parts designed, and some have been printed. In some cases the 1st of probably WAY too many parts destined for the "Well that ain't gonna work" box, have already found their new home.
Don
Brass_Machine:
Cool project!
WeldingRod:
Fun!
Could you put thrm back on the box and pack the controls separately?
Sent from my SM-G892A using Tapatalk
ddmckee54:
WeldingRod:
The original box, that's a really good idea - in an evil sort of way. Some of the kids that one of these Jeeps will be going to are in the 12-13 year old range. Too bad that Jeep is being shipped to West Virginia, it would be interesting to watch the look on their faces when they open a gift rated for a 3+ year old. (Probably think Uncle Don has finally gone around the bend.) Maybe a little collaboration with their parents and I can get a video of the opening. Just have to label the boxes with which one gets opened first. A couple of the kids are only 3-ishThat's a really good idea, in an evil sort of way. Some of the kids that one of these Jeeps are going to are in the 12-13 year range. Too bad that Jeep is being shipped to West Virginia, it would be interesting to watch the look on their faces when they open a gift rated for 3+. Maybe a little collaboration with the parents and I can get a video of the opening. Just have to label the boxes with which one gets opened first. A couple of the kids are only 3+ so I figure their Dad will have to show them how to run it, maybe show them a lot - just to be sure they know how to run it.
I should be able to fit it back in the box, which I still have. I had to increase the wheel track 2-4mm to get the clearance for the gearmotors, it's gotta be 4WD donchyaknow. (MY 3D cad software thinks in millimeters, so you metrically challenged people just deal wit it.) But other than that I haven't made any major external changes on the Jeep. So with minor modifications to the interior packing, it SHOULD fit back in the original box. There will also be four M3 SS button head screws that attach each wheel to the gearmotor via a steel hub. The wheel rims are a silver plastic so the SS button heads shouldn't be painfully obvious.
I've attached a picture of the radio that I going to use. It's a 3 channel 2.4GHz radio with a 1S Lipo battery for the transmitter, a USB charger is included. I got a 1400mA 2S Lipo for the Jeep, it's going to live under the hood where the fake engine used to be and it's also got a USB charger. I didn't want anybody to have to feed these things a steady diet of AA batteries. The fake engine had to go to make room for the steering linkage and for the top of the servo. I had plenty of room above the steering arm, and below the hood, for the battery and a platform to hold the battery.
The gearmotors that I'm using are 360 RPM @ 6V, and have an 80mA stall current. I figure that at 7.4V they should be about 400RPM-ish? This thing should scoot right along, but that's what a throttle is for, you're never too young to learn that lesson. One 20A ESC will have NO problem with all 4 motors. The ESC that I got will live under the floor of the Jeep, there's about 10mm-ish of clearance between the bottom of the floor and the top of the frame/belly pan. The ESC is maybe 6-7mm thick. The receiver is going to live in the gas tank , I think. I'll know more tonight when I get home, as I just got an e-mail telling me that the radios, at least 3 of them, were delivered today. Then I'll know if the receiver will fit in the tank or not.
Don
vtsteam:
Sounds like a cool project. I do hope you mean LiFe cells for the jeeps and not Lipos, and that you have suitable safe chargers to go with these, and that they will only be available to sub teens while adults supervise. And of course that the adults understand the risks and charging and storage requirements involved.
Please see:
https://www.rcgroups.com/forums/showpost.php?p=15776103&postcount=4
Navigation
[0] Message Index
[#] Next page
Go to full version