Wrench's Losi Micro Short Course

[WrenchHead]

Oh well went and did it again. So I walk into the LHS and scouted a box of Losi MIcro Short Course rigs just opened up. SCORE!!!! Right off the top I snagged a new SC. They also had a box of the Rally riges as well but the SC had me just lookin at it. Well just got it home and the battery is charging as I type this out. Man they have a new battery so not to sure if my Micro Lipo's will work just yet. So here are a few pics of this Lil' Sucka for you RC hungry Freaks.lol Enjoy.L8R,Wrench.


Love that NEW car smell. Oooh That smell,Can't you smell that smell.

Comes with all the goodies to rock right away,except for an hour of battery charge time.Just enough time to Wrenchify it out.

How about a Nekid shot for all you RC Porno luvers.lol

And how about a size reference shot against my DT chassised ram and my Micro Crawler.

And last but not least here are a few posed shots before the first romping session.Of to the local dirt lot for some runtime.

 

[Racer 1966]

I'm not into micros but it sure looks nice

 

[slowngreen]

Wow thats damn small! Get some vid. Are they fun?

 

[NitroRC4Life]

i love these trucks! My LHS got them in friday as well. I am looking into getting the Micro SCT, and the Micro Rally car. I would love to see these micros on a brushless system. HAHA

 

[WrenchHead]

Oh man look what happened to my new RC. lol

 

[NitroRC4Life]

What are you doing to it now?

 

[WrenchHead]

Just a bit of a test and tune session.lol Stay Tuned.

 

[WrenchHead]

Hey all; So after seeing a few guys say the JR SM22 servo would and or wouldn't work. I was planning on using mine from my DT build since I was sourcing my Bl/Lipo setup from there to speed things up in the SCT a bit. So after looking at everything laid out on my COWRC.com screw catcher I have devised a way to use the servo with a little mod work. So without any further delay or mumbo jumbo here it is.

First thing I did was trim off the rubber seal at the base of the servo where the wires emerge since space is at a premium on this sucker. This allows the back of the servo to sit down inside the chassis better as well as level.Otherwise it is jacked up and squishy like.lol
With

Without

Second thing I needed to do was to measure the post that lays in the steering rack and noticed the stud on the SM22 was to short to fit fully into the rack and drive the steering with full force.
Comparo shot of the 2 steering studs.

Here is the stocker seated in the rack fully and ready to push things left and right.

Here is the JR SM22 servo sitting in the steering rack. It only sits in slightly on the steering rack and looks to me will not drive the rack with enough force or might even fall out of the steering rack.

So I decided to come up with something longer to drive the steering rack a bit deeper and confident it would work. So after a few mins of thought I decided to cut off the stud flush with the servo saver face and replace it with a bolt just the right length.

Here I cut the stud and carfully drilled a pilot hole with my pinvise drillbits. I started real small and worked my way up till I could just fit the new bolt in the servo saver so it was a nice snug fit and screwed it in till it was just the right length.

Here is a comparo shot of the stocker servo and the SM22 servo after I retro fitted the new bolt.

Next step was to dish out the steering rack so the head of the bolt would fit right. I had to dish it out a bit with my eXato blade so the head of the bolt would move freely and work smoothly. Tread lightly since you can't add plastic as easily as you can remove it.

Next issue was to make enough clearence to use the SM22 without any binding or rubbing issues in the frame area.I had to trim a small area to make sure all cleared the chassis and worked properly.
Stocker seated in the chassis.

Here is the JR22 servo seated in the chassis after I removed a bit of chassis.

Also I decided to trim off the higher side of the steering rack for smoother movement and it seems to have worked out for me.lol
Before trimming it off.

After trimming it off.

So after all the trimming and test fitting all seemed good. I decided to use a large drop of RTV Silicone on the bottom of the servo as I laid it into the chassis to help secure it to the chassis.It is a bit shorter than the stock servo and I didn't want it to move back and forth in the chassis. I also added a small strip of servo tape to the top of the servo where the upper chassis support locks the servo into place just to be sure it isn't going anywhere.Remember to slide the servo all the way forward in the chassis before you tighten everything down.
Here is the finished shots of the servo in the chassis and in full working order. It fits nice and snug and moves the steering rack perfectly.This in conjunction with the steering movement mod makes for a freer and farther travel steering rack.

All done and everything is dryed and set into place.

Hope this helps and can make people's lives a bit easier and please enjoy the RC world.L8R,WrenchHead.

 

[JessF]

sweet mods. There going to be a video?

Hey all; So after seeing a few guys say the JR SM22 servo would and or wouldn't work. I was planning on using mine from my DT build since I was sourcing my Bl/Lipo setup from there to speed things up in the SCT a bit. So after looking at everything laid out on my COWRC.com screw catcher I have devised a way to use the servo with a little mod work. So without any further delay or mumbo jumbo here it is.

First thing I did was trim off the rubber seal at the base of the servo where the wires emerge since space is at a premium on this sucker. This allows the back of the servo to sit down inside the chassis better as well as level.Otherwise it is jacked up and squishy like.lol
With

Without

Second thing I needed to do was to measure the post that lays in the steering rack and noticed the stud on the SM22 was to short to fit fully into the rack and drive the steering with full force.
Comparo shot of the 2 steering studs.

Here is the stocker seated in the rack fully and ready to push things left and right.

Here is the JR SM22 servo sitting in the steering rack. It only sits in slightly on the steering rack and looks to me will not drive the rack with enough force or might even fall out of the steering rack.

So I decided to come up with something longer to drive the steering rack a bit deeper and confident it would work. So after a few mins of thought I decided to cut off the stud flush with the servo saver face and replace it with a bolt just the right length.

Here I cut the stud and carfully drilled a pilot hole with my pinvise drillbits. I started real small and worked my way up till I could just fit the new bolt in the servo saver so it was a nice snug fit and screwed it in till it was just the right length.

Here is a comparo shot of the stocker servo and the SM22 servo after I retro fitted the new bolt.

Next step was to dish out the steering rack so the head of the bolt would fit right. I had to dish it out a bit with my eXato blade so the head of the bolt would move freely and work smoothly. Tread lightly since you can't add plastic as easily as you can remove it.

Next issue was to make enough clearence to use the SM22 without any binding or rubbing issues in the frame area.I had to trim a small area to make sure all cleared the chassis and worked properly.
Stocker seated in the chassis.

Here is the JR22 servo seated in the chassis after I removed a bit of chassis.

Also I decided to trim off the higher side of the steering rack for smoother movement and it seems to have worked out for me.lol
Before trimming it off.

After trimming it off.

So after all the trimming and test fitting all seemed good. I decided to use a large drop of RTV Silicone on the bottom of the servo as I laid it into the chassis to help secure it to the chassis.It is a bit shorter than the stock servo and I didn't want it to move back and forth in the chassis. I also added a small strip of servo tape to the top of the servo where the upper chassis support locks the servo into place just to be sure it isn't going anywhere.Remember to slide the servo all the way forward in the chassis before you tighten everything down.
Here is the finished shots of the servo in the chassis and in full working order. It fits nice and snug and moves the steering rack perfectly.This in conjunction with the steering movement mod makes for a freer and farther travel steering rack.

All done and everything is dryed and set into place.

Hope this helps and can make people's lives a bit easier and please enjoy the RC world.L8R,WrenchHead.

 

[WrenchHead]

Well after a break from working on the MSC I have finally had the time to start up again. It has been sitting on my workbench just stairing up at me. So here is what I decided to do with my rig. I wanted to center the load and combine all my electrics in one location. So I decided to remove the chassis and cut out a chunk of the upper chassis support and cut out the battery box as well. Then I decided to add my Losi Brushless motor and ESC as well as my 2 cell Lipo battery and my 2.4 ghz recv. After some thinking and cutting here is what I came up with. Enjoy.L8R,Wrench.

Cut the upper chassis out to make some room.

Then decided to cut the battery box out from the lower chassis as well.

Here is the amount of room this opened up for me to use for my electrics placement.

And after all the cutting and fitting here is what I ended up with. Also I remover the Recv. from the case and used some battery shrink wrap to secure the the antenna and wires.

And then with all this work done here is a body on shot as well.

 

[WrenchHead]

Well I decided to add a few things. Went ahead and ordered some new rims and tires. Wanted another set and $2 was to hard to pass up.lol Then decided to used the original tires as Baja Syle spares. Seems to have done the trick.ENjoy.l8r,w.