PDA

View Full Version : An addition to our RCP layout.


ScoobyPete
2012.05.28, 08:09 AM
Hi All,
Just thought I'd post some pics of the Bridge I built for our RCP layouts.

I built a Bridge using 1x1 batons of wood and some hardboard to clad it.
This is the 1st attempt and it works really well if you don't go to fast.

http://memberfiles.freewebs.com/77/47/38974777/photos/undefined/P5270088.JPG
http://memberfiles.freewebs.com/15/94/38939415/photos/Cross-Over/P1000144.JPG
http://memberfiles.freewebs.com/15/94/38939415/photos/Cross-Over/P1000147.JPG
http://memberfiles.freewebs.com/15/94/38939415/photos/Cross-Over/P1000149.JPG
http://memberfiles.freewebs.com/15/94/38939415/photos/Cross-Over/P1000151.JPG
http://memberfiles.freewebs.com/15/94/38939415/photos/Cross-Over/P1000153.JPG

arch2b
2012.05.28, 12:16 PM
looks awsome! i bet it's really fun.

one of these days i'm going to make an arc bridge which should alleviate the ramp effect.

ScoobyPete
2012.05.28, 12:42 PM
Yeah we found that an Arch shape would be better than just a flat top. The track has a natural tendency to bow up away from the surface of the bridge.
We ended up placing a few spare blank RCP tiles underneath to help alleviate the track bowing, but it still does a bit. We are looking at either adding a few layers of ply with some hardboard to match the curve we need or Stick the track down to the surface. Sticking it down isnt the best idea though as it will be very rampy.

arch2b
2012.05.28, 01:01 PM
wood isn't required really. well constructed and interconnected cardboard arch supports would do the trick fine. rcp doesn't weight much and the cars aren't heavy enough to be a problem. i've done many ramps and banked turns with cardboard. i've done bridges before as well but flat cardboard doesn't span gaps well enough on it's own. i've not had the time to do an engineered cardboard bridge. i figured 2 6' steel or aluminum angles bent to the bridge/arch profile with batten slats would do well enough. sleek, simple, effective. trouble is i've not had the need to do it though as we just don't have space for a track large enough to use a bridge.

spacing the tile joints over the bridge is as much key to the performance. you don't want the joint at the crown for example.

do you have video of the cars taking the bridge?

kryten
2012.05.28, 02:33 PM
Nice job Pete,we're working on a dnano one at the moment. Will have to come down and race with you guys soon. :)

ScoobyPete
2012.05.28, 02:58 PM
Nice job Pete,we're working on a dnano one at the moment. Will have to come down and race with you guys soon. :)

Thanks Jayce, it's a 1st attempt and will do for now. I know what I'd do different next time. Your always more than welcome to pop down :) Bring the buggies and we can take out the middle of the bridge and raise the ramps to jump the gap :)

ScoobyPete
2012.05.28, 03:46 PM
wood isn't required really. well constructed and interconnected cardboard arch supports would do the trick fine. rcp doesn't weight much and the cars aren't heavy enough to be a problem. i've done many ramps and banked turns with cardboard.

Banked turns sound interesting. Do you have any pics with and without the track?


i've done bridges before as well but flat cardboard doesn't span gaps well enough on it's own. i've not had the time to do an engineered cardboard bridge. i figured 2 6' steel or aluminum angles bent to the bridge/arch profile with batten slats would do well enough. sleek, simple, effective. trouble is i've not had the need to do it though as we just don't have space for a track large enough to use a bridge.

I used the lightest wood I could so they are not heavy just damn big, the middle section is just a 1mx1m hardboard panel with the 1x1 framing it. It's removable so we can span 3wide if we need to.


spacing the tile joints over the bridge is as much key to the performance. you don't want the joint at the crown for example.

do you have video of the cars taking the bridge?

The up and down ramp were originally 2 tiles long. I had to build the box section extensions so we had the tile joints on the flat either side of the crown.

Here's a link to the video. It's a compilation to give the impression of a single lap. The average lap was 11-12 seconds.
http://www.youtube.com/watch?v=YvvY0ro3LmY

arch2b
2012.05.28, 05:11 PM
i'm sure i have some, just have to dig around. i haven't done that in over 5 years.

warrenC7432
2012.09.07, 08:42 AM
It really an awesome job , and frankly speaking your track seems difficult , i have never raced on such tracks, tracks i used to race are mostly simple because we are sort of noob racers.

arch2b
2012.09.07, 08:55 AM
you can really take it to the next level and create undulating layouts. these are VERY fun.

http://mini-zracer.com/mini-zgallery/data/511/medium/IMG_0021.jpg

http://mini-zracer.com/mini-zgallery/data/511/medium/IMG_0015.jpg

http://mini-zracer.com/mini-zgallery/data/511/medium/IMG_0054.jpg

http://mini-zracer.com/mini-zgallery/data/511/medium/IMG_0050.jpg

http://mini-zracer.com/mini-zgallery/data/511/medium/IMG_0067.jpg

http://mini-zracer.com/mini-zgallery/data/511/medium/IMG_0068.jpg

http://mini-zracer.com/mini-zgallery/data/511/medium/IMG_0803.jpg

http://mini-zracer.com/mini-zgallery/data/511/medium/IMG_0810.jpg

http://mini-zracer.com/mini-zgallery/data/511/medium/IMG_0781.jpg

http://mini-zracer.com/mini-zgallery/data/511/medium/IMG_0849.jpg

arch2b
2012.09.07, 09:12 AM
a few more...

http://mini-zracer.com/mini-zgallery/data/511/medium/IMG_1801.jpg

http://mini-zracer.com/mini-zgallery/data/511/medium/IMG_1208.jpg


believe it or not, we even got F1's over the hill with enough forward momentum:eek:

Sammich
2012.09.09, 09:18 AM
just wow, this is awesome!!