Dumb New Guy With Big Ideas

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Dumb New Guy With Big Ideas; M3A1 TLT half-track
Topic Started: Jun 10 2006, 06:38 PM (515 Views)
spoon37	Jun 24 2006, 09:24 AM Post #26
Trax Master Poster Posts: 602 Group: Admin Member #11 Joined: December 14, 2005	jeez... thats like Imex 2.2" pullers.... even masher 2k's arent that tall.... what about a smaller sprocket wheel? I mean on the Blizzard the nominal diameter* is only 30mm, or 40mm if you include the teeth that drive the tracks... that way 2.72 x 30mm is 81.6mm - Tamiya BFG's are 88mm which aint far off, so it puts it in the ball park of those sort of tyres, or TLT stockers, or 2.2" buggy tyres.... *i.e. what the track actually sits on you'd prolly have to narrow the tracks tho as the blizz is really wide: I'm sure the wheels of the heng long style tanks would also be smaller than 2"



outcastrc	Jun 24 2006, 09:17 PM Post #27
Administrator Posts: 1,150 Group: Admin Member #1 Joined: December 13, 2005	The Pershing sprocket is quite a bit smaller then the tiger is. That would help...



dremelit	Jun 25 2006, 04:11 AM Post #28
Swayed by the Trax Posts: 19 Group: Member Member #89 Joined: June 10, 2006	I'm just going to have to go buy these tracks so my mental process can get started properly. Or something like that.
	Dremelit is one of the few men I'm actually afraid of! His brain works at 4 times the speed of you or me, he actually tries to make his many ideas come to fruition, and has NO idea what an obstacle is: He has balls that clank, and one hand was lost in an accident, so he had a Dremel grafted on-It even has an attachment that lets him hold ANOTHER DREMEL! Whenever this guy is stimulated, take my advice & run for the hills!


outcastrc	Jul 4 2006, 07:13 PM Post #29
Administrator Posts: 1,150 Group: Admin Member #1 Joined: December 13, 2005	Hey Drem I was looking at some large M3 half tracks pics and I think you can come close to the right gist of it if you grabbed a HL Pershing. Take the sprocket and one bogie for the two ends. Then use the smaller upper wheels as your lower wheels. Drilled out and attached to aluminum brackets it would look almost exactly like a M3. And the best part is you can get the older tanks from Mato and its WAY cheaper. Seeing as you don't need any of the upgrades anyways. I checked the hummer tires (since I have them) and they scale out too large. I think that a rig front tire would scale a lot better. Just thought you'd like to know.



outcastrc	Jul 4 2006, 08:08 PM Post #30
Administrator Posts: 1,150 Group: Admin Member #1 Joined: December 13, 2005	Taking it a bit farther. I grabbed my spare parts and a set of calipers and tried to recreate the track section while making it a bit larger to accomidate the hummer tire. I think this works... By stretching out the track section a bit in length and height it works and yet would still look like what it was supposed to look like. Now this truck would be 23" long from the front to rear bumpers. and have a wheelbase (Is that possible?) of 17" from front tire to rear sprocket. And heres a pic to show what it could look like...



spoon37	Jul 5 2006, 04:23 AM Post #31
Trax Master Poster Posts: 602 Group: Admin Member #11 Joined: December 14, 2005	thats more like what I was thinking.... I only had blizzard parts to go by tho...



outcastrc	Jul 12 2006, 06:46 AM Post #32
Administrator Posts: 1,150 Group: Admin Member #1 Joined: December 13, 2005	I would still prolly get a set of Tamiya rig tires for the front if I ever do try to make a 1/2 track. That way you can make the track section slightly smaller and it would match the tanks scale better I would think. I did the basic math and if the real M3 is 20' 3.5" long. Divide that by 16 and you have a 15.22" model... So my mock up is technically 1/10ish



dremelit	Jul 14 2006, 03:39 AM Post #33
Swayed by the Trax Posts: 19 Group: Member Member #89 Joined: June 10, 2006	That's not bad, OC, but that still leaves me with undriven front wheels. I think the width might be what decides the overall scale, and TLT axles may be too small for this. Or not. I should probably pick up a set of those Vex Robotics tracks and start the mockup.
	Dremelit is one of the few men I'm actually afraid of! His brain works at 4 times the speed of you or me, he actually tries to make his many ideas come to fruition, and has NO idea what an obstacle is: He has balls that clank, and one hand was lost in an accident, so he had a Dremel grafted on-It even has an attachment that lets him hold ANOTHER DREMEL! Whenever this guy is stimulated, take my advice & run for the hills!


outcastrc	Jul 23 2006, 08:13 PM Post #34
Administrator Posts: 1,150 Group: Admin Member #1 Joined: December 13, 2005	I have been considering the problems with making a M3 halftrack ever since you started these threads... I think I have a cheap and reletively easy system that can make this work. Version one: take a Heng Long pershing. Rip it apart and reorganize the track system into a close approximate of the M3. Use a front rig axle and set it on a light spring system so when you steer the tracks the front tires will track with the corner. Now you need to limit the steering on the HL radio so you can't piroette. The nice thing about this is you get full sound (smoke if you want it) plus lights. AND you have 2 other channels for motors. Heck you could even remake a smaller turret system using the electronics and pull off a full functioning turret of some form. Version two: take a Heng Long pershing. Rip it apart and reorganize the track system into a close approximate of the M3. Use a front rig axle. This steers with normal radio gear. Wire both track drives to one esc and it should allow the power to walk around corners (just like a clods diff electrical issues) Version three: This is getting closer to what you were after. TLT axle front, rig tires, tear apart pershing again but this time your just adapting the sprocket to the rear tlt axle. make track system from parts on pershing. Center tranny is an open stampede. The only problem I can forsee is the front tires just spinning out and it going nowhere. Or better yet something that could be oil filled to allow limited slip. and then go as thick as you can until right before front tires start spinning instead of driving... I think versions 1 and 2 would make a very capable vehicle and be much easier and cheaper to boot. Its not like you need the front axle for traction. With a track rear drive your going to have more then enough.



dremelit	Jul 24 2006, 08:04 PM Post #35
Swayed by the Trax Posts: 19 Group: Member Member #89 Joined: June 10, 2006	The thing is, for me it's not about building a capable vehicle, or having a scale half-track. It's all about overcoming the technical challenges of the build. I have to do it the hard way, because that's what get me going. The fact that I get an M3 when I'm done is a nice little bonus. If it was easy, it wouldn't be nearly as cool.
	Dremelit is one of the few men I'm actually afraid of! His brain works at 4 times the speed of you or me, he actually tries to make his many ideas come to fruition, and has NO idea what an obstacle is: He has balls that clank, and one hand was lost in an accident, so he had a Dremel grafted on-It even has an attachment that lets him hold ANOTHER DREMEL! Whenever this guy is stimulated, take my advice & run for the hills!


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