7 replies to this topic

[Miezis]

Hello everyone! 
 
After some while, I finally started a build of improvised chassis for Carrera track. It will be from PCB center section, brass side pans, guide tounge and mounts for oilities. The width of car will be 54mm. (~ 2.12598 inch), so that it would not slide off the Carrera track.
 
Also for experimentation I started two chassis at the same time - one center section will be from phenolic PCB material (1mm or ~0.040inch) and the other one from fiberglass PCB material (1.6mm or ~0.063inch). Phenolic chassis will be about 0.02inch longer.
 
Gathered some materials from local RC store:
 

 
Put out my design to phenolic PCB material:
 

 
Put out my design to fiberglass PCB material:
 

 
Phenolic and fiberglass PCB in one shot:
 

 
I cut them out using my dremel and cut off wheels (408) the result was not perfect, but reasonable (will need to file those lines though):
 

 
Phenolic center section:
 

 
Fiberglass center section:
 

 
As you probably see from the pictures - it'll be an anglewinder. I guess I should get myself a vise, it should help me do straighter lines, when cutting.
 
So it's a start. Constructive criticism is very welcome, as I'm learning this again...

[SpeedyNH]

nice one, Miezis. we used to make circuit board chassis for 1/24 Eurosport cars over here in the US, but we never put brass pans on 'em. did use metal reinforcement for the guide holder, though, and we should have added some to the rear uprights.  

i'll be interested to see the progress and results.

I didn't realize that you even Had slotcar racing in Lithuania! that's great. where do you race? just curious.

speedy

[Miezis]

We have four tracks in Lithuania that are in use, all of the are in youth centers and only one of them meets ISRA requirements. Personally I play around with carrera set at home. Although I plan to rebuild my old Production 24 car and participate in Baltic States Championship race, which will be held in Jelgava, Latvia on August 19-21.

 

Here's my favorite temporary circuit:

 

 

 

In the last pic you see that there is a power relay module attached to track and some wires under the track - that's my home brew race direction hardware, the software was a project used for my bachelor thesis defense to get a degree in software engineering.

 

Maybe you have some pictures of those circuit board chassis for Eurosport 24?

[MSwiss]

Hi Mantas,

Good to see you building.

 

The issue with your chassis is if are not using magnets for handling, making it from something light will always be a CG compromise.

 

IOW, you'll probably have to add weight, and said weight will never be as low as if you just cut the plate out from brass, to begin with.

 

PS - For those not aware, Mantas was in Chicago on business about 6 months ago, and raced a few weekends at my raceway, demonstrating some solid driving skills, with big tired, Hardbody cars, that he wasn't familiar with.

[Miezis]

Hey Mike! 

 

Side pans will be out of brass, so I guess I'll play with weight on them (will try to drill out some holes in the back to adjust the center of gravity).

 

PS. Had a great time at your raceway! 

[MSwiss]

With brass pans, it makes way more sense.

[SpeedyNH]

think that I have a couple of the bare chassis left. right now I'm on travel.

[Dennis David]

Running on plastic track is a funny thing and a lot of weight either down low or any where for that matter doesn't work the same way as on wood. The issue is the lack of grip is made worse with a heavy chassis.

Tire choice and preparation is critical and we found that weight distribution is also important. When we race Group C the inline pod handled better than either the angle winder or sidewinder orientation. Plus a little weight added before the rear axle was best.