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Micro R/C Trux! Anything smaller than 1/12 scale. VMGs, Mini Z's etc!


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  #16  
Old 01-31-2020, 07:48 AM
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Small update fer' yen's...
I got a motor mount, servo mount and t-case mount made up..
I know, you're thinking.."your servo is in the wrong spot, Stupid"...
However, I have a trick up my sleeve that should work just fine.. You'll just have to wait for that.

Pics!
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  #17  
Old 01-31-2020, 09:58 AM
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JerryCan JerryCan is offline
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My thought was where is the servo plug going to live. Location looks fine, if for no other reason is it fits there LOL


bell crank ?
pep
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  #18  
Old 01-31-2020, 03:28 PM
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heartless heartless is offline
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this is really starting to take shape.. cant wait to see what you have planned for the servo, tho
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  #19  
Old 02-01-2020, 09:08 PM
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This is so impressive .My brain is having trouble processing the fact that it looks like a 1/10 scale chassis with a giant servo connector the size of a smartphone.
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  #20  
Old 02-26-2020, 06:19 AM
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Thanks guys..
Small update... I've not got a transfer case built. Man, was THAT a pain in the keister!
I officially decided on a body, the Fiat 125p Kombi 4x4.
This truck was originally built with IFS...But this is MY build, so I'll do what I want!

Almost everything is in order at this point, just a couple of minor tweaks here and there including some body work for some extra clearance. I also need to get the electronics all dialed in before the final build up.


Well kids.... Here's a roller!
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  #21  
Old 02-26-2020, 07:23 AM
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Good choice for the body, fits nicely

pep
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  #22  
Old 02-26-2020, 10:27 AM
jonnywachter jonnywachter is offline
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Love the work! where are you finding the gears/universals and electronics? Id like to design my own.
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  #23  
Old 02-26-2020, 11:43 AM
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Thanks guys...

Jonny- I found the 0.4M bevel gears, transfer gears and universals on aliexpress.com originally. They seem to come and go on that website though. You can find the gears on amazon also, they are just about 5 times as much $.
The micro universal joints can also be found on tiny4x4.com under the DAS87 drivetrain section. Just have to keep checking back with them and stock up when you get the chance. They are out of stock most of the time.

I'm working on making a fixture to be able to machine the parts for the universal joints. If I have any success and can make some good sets I'll let you know.
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  #24  
Old 03-28-2020, 01:05 PM
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Very nice, any updates coming?
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  #25  
Old 03-30-2020, 01:24 PM
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Sorry for the delay on updates... With this whole crisis going on, my company has decided to eliminate my position, unfortunately. So, most of my free time is spent getting into a new shop and has not been fruitful at all...

The transfer case and originally planned powerhouse of this rig didn't turn out to be what I had hoped, so I've redesigned a t-case and a larger motor with more reduction to make up for the stalling that I was experiencing.
The parts have been machined , but still need some tweaking to get a smooth roll.

There will be more to come, just bare with me as times are a little tough at the moment and personal projects have been set on the back burner.
I'll get some pics up soon on the progress, as soon as I have some extra time.

I've come too far to not complete this project, so just keep checking back!
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  #26  
Old 04-09-2020, 10:41 AM
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I think I've found the bevel gears on alliexpress, problem is the measurements are pretty vague, do you think you could take some measurements for me? I'm trying to model them up in Solidworks.
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  #27  
Old 04-15-2020, 07:15 AM
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here ya go Jonny... Hope this helps. The 4.05mm section is roughly 2mm long, Leaving 1.71mm for the teeth of the gear.
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  #28  
Old 04-15-2020, 07:18 AM
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When I was modeling these axles, I believe I left a .1mm clearance gap on all sides to reduce friction, just FYI.
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  #29  
Old 04-15-2020, 05:01 PM
jonnywachter jonnywachter is offline
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Quote:
Originally Posted by stub View Post
When I was modeling these axles, I believe I left a .1mm clearance gap on all sides to reduce friction, just FYI.
Thanks for the info, I realized after I asked that it would be easier to just have the parts in hand for everything so I bit the bullet and just ordered them, waiting for the slow transit from china now... thanks for the inspiration tho! Here's a little taste of my project, I started a thread on Rccrawler.com if you're interested.


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  #30  
Old 04-16-2020, 06:15 AM
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Absolutely! Very sweet! I like the indy front suspension layout. I hope it works out for you. I did find that having the physical parts made a difference when machining, just so i could fit and test while still in the machine and just make adjustments from there. Just my personal input, I don't know what size motor that you plan to go with, but a 6mm can with a huge gear reduction kept stalling for me, so I would recommend going to at least 8mm with a sturdy gearbox to keep from future breaks and stalling issues. just my 2 cents....
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