ULTIMATE PROJECT CRAWLER COMPLETED!!! SUCCESS!!

After hours of hard work finally the conversion from stock mini monster truck to profesinal grade super crawler have finally reach its goal. Super flex torsion axle, longer stable stance and 100% terrain crawler with high power climbing rate equal to AXIAL AX10 crawling capability. With Tamiya CR01 driveshaft, MAMBA 25 ESC, 2.4Ghz and dual steering front and rear... no terrains or obstacles can stop this might beast. Would like to thanks our Member Crawler community from rctech for supply me crawler parts. This is rock crawler at its best! will post you the video too hehehehehehe...

First i would like to thanks to member of rctech (http://www.rctech.net) "Ecrawler" for reserving me his stock Huanqi mini monster (A-Tech Leo-x) for my conversion work to full pro spec crawler. Took me around 11 hours of work to convert an innocent shorty mini monster to extreme crawler spec.

Construction Material:
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-Huanqi mini monster stock models (1/20 scale - 'aka' A-Tech Leo-x model)
-2.4Ghz Sanwa receiver
-Castle Creation: MAMBA 25 Brushless ESC
-4x steel clip rods + 6x mini radio antenna (For lower axle push rod and mid drive shaft rods)
-4x extended slim push rods for front and rear steering and center axle positioning
-Lipo 2s 800mah 15c batt
-4x Plastic rod wall concrete insert ( for adapter to attached Tamiya CR01 adjustable drive shaft to axle and gear box)
-TAMIYA CR01 adjustable drive shaft


Useless stuff to be thrown off from chassis:
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-Stock Rx and TX
-Stock 50A Brushed ESC
-Nimh 7.2v batt
-4x stock push rod axle
-2x short mid drive shaft

Work hours - 11hrs

-------------------------------------------------------------------------------------Performance:
What can i say it climbs like a spider!!!...that is when i use brushless 4200KV motor + 8T HPI RS4 micro pinion gear).


Photo:

The almighty small 4WD dirt monster.

Once again......Its small but pack all the lastest technology equivalent to hi tech computer and machinery. Can't believe its costs a bang to let it run wild on the dirt track. 2.4Ghz spektrum module, high kv brushless motor technology, programmable computer tuned ESC with software modification and upgrade, 4 channel computerised remote control, high dischare rate lithium polymer pack, precision mechanical parts and lots more... and can fit inside a shoe box. This time its even better!!

Yes its another overtime late night project...zzzz..zzz

Well its another sleepless nights for me, a broken computer, raining day outside can't ride my mountain bike, boring tv program, bored on PSP games...so i decided to spents some time recycling some of my expensive junks and make it usefull. So like lastime i decided to builts another performance R/C mini monster full proportional radio control models using 1/18 R/C parts. Below are process of stuff that i did.


Ingredients:
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RM$550 -Castle Creation: SIDE WINDER MICRO Brushless ESC + Brushless motor
RM$100 -HL Receiver (RX) 3 channel port
RM$69 -New empty mini monster chassis/case with locked diff
RM$55 -KYOSHO AM radio crystal (RX)/(TX)
RM$55 -TOWER PRO micro servo
RM$18 -Battery connector set with high amp wire
RM$27 -Fresh new NRX-18 Aluminium pinion gear with allen lock.
RM$14 -HL Crystal socket
RM$75 -8 pcs PN-RACING sealed ball bearings for wheels and drive shaft

Estimated cost: RM$963


Working tools
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-FINISHLINE 'Teflon' coated lubricant
-Narrow nose pliers
-Philips screw driver
-Wire solder tools
-Sets of Zip tie
-Tamiya craft pen knife


Construction process timetable
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8.00pm - Prepare all the stuff. Dismantle the cheap chassis.

8.10pm - Modify and cut the rear gear case to allow brushless motor and big Alumimium pinion gear to fit in. Use 4x zip tie to lock the brushless motor intact. Insert 4x PN-Racing bearings inside the gear transmission and both wheel arms drive shaft.

9.00pm - Modify and poke a hole beside the steering case. Insert PRO TOWER micro servo and screw in and zip tie it on two side of the steering servo.

10.30pm - Main chassis battery case will be wired with high amp thick wire, then solder. Battery connector to be soldered to the + and - tabs. Solder the on/Off witch via ESC wires.

10.40pm - Plug in ESC and Steering servo plug into CH1 and CH2 slot inside HL micro receiver box. custom remote crystal wire slot into two whole of crystal sockets. Then insert the HL Receiver(RX) inside the chasis case vertically, press fit. All required wires to be pull out to external. Then seal and cover the chassis housing cover to seal the HL receiver box.

11.30pm - Setup the antenna protected with long plastic pipe againts statics charges.

11.40pm - Rearrange all the bulk wires and zip tie it on to the chassis. SIDEWINDER ESC connected to the motor gold bullet plugs. This time the red and black color are connected in reverse direction because the chassis gear have two spur for torque power transfer. Connect Kyosho AM Cystal module to the remote crystal socket.

12.00am - Install back all the chassis parts, suspension, screw, wheels, tyres, springs, tower clip, switches, suspension pivot/bridges and etc. Lube all the parts with permanent water proof Teflon coated lube.

12.45am - Insert battery, Testing and tuning, Re-programming SIDEWINDER ESC programming setting.

1.00am - Test Drive.

1.30am - SUCCESS!!!!!

Tested behind the office this morning and it sprint way faster then MINI-Z and NANDA-NRX. Its spins uncontrollably as you experience brushless on NRX-18. Powered only 4.8V AA 2700mah battery is just enough to kill this mini truck. At last no more ESC over heat!! No more smoke come out from electronic yeehaaaaa!!!! I love it. Now i have two sets of mini monster!! cool!

Going into mini off-road with DIY models.

After extensive research, budget calculation and weighting the fun factor consideration parts durability and parts availability i decided to pick up some cheap base chassis from local toy store an Auldey mini bigfoot and dig out RM800 worth of professional R/C parts from my Kyosho MINI-Z MR01 mini servo, KYOSHO MR02 electronic micro PCB board, SP8M4 5x stacks custom FET, ATOMIC-RACING gear, PN-RACING ball bearings, HL controller, HPI AM radio crystal and TAMIYA ULTRA DASH hot motor into the mini monster chassis. Took me full 8 hours to work on the conversion. The results is amazingly high torque off-roader suitable from rough off-roading and rock climbing. Its huge clearance below the chasis and long stock and flexible suspension enables this mini off-roader to soften and harsh impact come from various direction and the encase gearing system assure that the inner gear parts would last longer than having to replace often like my 1/28 KYOSHO MINI-Z. Plus comparison to my NRX-18 1/18 touring it does need much space and can crawl and speed almost any terrains including long grasses. The fun factor is also huge with longer run times due to light and high torque type gear which is friendly to the motor and also the cheap chassis could hold 4x AA 2700mah GP batteries. This is my worth DIY (Do It Yourself) professional hobby class mini monster R/C models. I love it. I guess i dun have to worry about broken parts anymore. Happy!