reaper crawler motor TUT

[reaper]

GHETTO CRAWLER MOTOR

difficulty 6/10


so here it is the one you have all been waiting for

parts needed:


gen1 servo
micro geared-motor GH810136V3 its the 100rpm one you want
http://www.gizmoszone.com
a yellow gen1 wheel bushing or grey evo gearbox bushing
any 130 size motor (stock ones are best)

tools needed:

small pliers
epoxy 2 part glue
superglue
dremel type tool


first job is to open up your stock 130 motor and remove the arm and magnets, then removed the wire coils and comm



next get your gen1 servo and take out the 7 screws holding it together


this is what you should have


the parts we need are these gears


using your pliers take the gears off the shafts like this


the gears we are going to use are these three (3) but save the yellow bit as this makes a good spacer for the motor cradle


take the gear on the right and push this onto your stripped out 130 arm like so (it will get positioned later)


now the "pinion" is in 2 parts you will notice they lock together with teeth, all we need to do is glue them together till it looks like the one on the right


now onto the motor case
take your dremel and start sanding this is something like you are looking for (stock on left)



just keep trying your arm and gear until it spins without hitting anything

ok so that done take you 130 case and slide the arm into it until it hits onto the brass bushing , add a grey or yellow spacer


now push on the end-bell and test for any binding and to see if the gear sits in the opening you have made (option of using superglue on shaft to gear)


once that is done and all is smooth bend the tabs back to hold the end-bell on


next is the gear motor


take the gear we made by gluing 2 together and push onto the geared motor with the small gear inward


next is the most important bit mount the small motor on top of the dummy 130 and test for gear mesh
i found putting the small motor just off centre gave the best mesh
check check and check again then glue into place with superglue
check again !! if all is good use an epoxy to fill the gap where the motors meet



now all that's left is to solder some wires on and make some spacers for the motor cradle (the yellow bit out of the servo works well )

thanks all for watching and any comments or questions are happily accepted

[~GOODFELLAZ~]

looks some what easy, i would like to give it a try, i think i have some faulty gen.1 electronics coming my way from you you at some point, i think zippo might still have them. lol

one question tho, what geared motor do we use? i did not see a linky.

[reaper]

Originally Posted by ~GOODFELLAZ~

looks some what easy, i would like to give it a try, i think i have some faulty gen.1 electronics coming my way from you you at some point, i think zippo might still have them. lol

one question tho, what geared motor do we use? i did not see a linky.

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the link will follow
im in the middle of comming to a deal with the vendor so we can get them at a better price they are $23 with P&P at the moment

[newpaint_body]

i kinda got lost on this lol. it all makes since to me but what wires do we solder and to which motor? and do both motors run?

[reaper]

the small motor is your drive , the stock xmod motor (130 size) is just a gearbox

the idea behind this is that it is a drop in crawler motor I.E. not carving up of your xmod just take your stock motor out and drop this in hey presto

then if you want to have a bit of speed take it out and your stock motor will fit right back in your truck


this is the original diyminituner version that sold for $40 and were snaped up as fast as they were made and EVERYONE has been trying to build ever since lol

[pyros509]

what motor did you use for the gear motor?

[V8titan]

Very different variation on the servo mods I've seen. Instead of using the whole servo you use just the gears. Creative, and also another servo alternative along with GoMeR20's motor mod with the K'Nex gearbox and 180 motor. Very nice.

+1

BTW how much torque? I might consider it for a flip side to my Nissan Titan.

[pyros509]

could i use the gen1 servo motor? or the stock motor for evos?

[Darwinfish]

The deal with the motor Reaper used is that it's what's known as a gear motor, aka a motor with a set of gears stuck onto the end. The motor from a gen1 servo on its own probably couldn't move the shaft of the 130 motor, let alone a truck. And by mounting an Evo motor on top of the can, your only change from installing the stock motor normally would be a higher center of gravity.

So no, you need a gearmotor.

[pyros509]

ok i understand, where might i be able to get one?