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jmswms |
New Portable Rally/Raid Track |
Lead | |
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I just got a routing kit from Luf, the "oldslotracer", and now I'm planning a trial run for a routed track. It has to be portable/storable, but
I'd also like to have a long straight. So, I am thinking about what I could do with one sheet of MDF. I think a 2x12' track with two sections
2'x6' would be manageable. I'm also stealing a couple ideas from the oldslotracer's "Raid" and "Old World Rally" track
designs. Here's what I've come up with as a possible design. I wanted a long straight, which I would paint as an old highway, then the track would go
off-road (and maybe a 2" drop in elevation) for the rally/raid portion. I've never done a routed MDF track before so this will be my big experiment.
Any suggestions/pitfalls in design?
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oldslotracer |
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Here's my thoughts...3/8 MDF is about $18 per sheet, you'll get two 2x6s plus an offcut for practice. Do the routing, cut out the roadway, use some 40
or 60 grit sandpaper to round all the edges and then see just how far you can bend and stretch the roadway. I think you'll be amazed, but if it breaks,
you're only out $18.
Think about a swap-out crossover to turn it into a single lane for when you're running alone...you can have a lot of fun on a small track, especially with rally cars |
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DrDiff |
You need to flex it some | ||
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You are going to need to flex it some for some elevation changes.
That 10 foot straight is just asking for a hump or two thrown in there. Think Luf's Nurburgring....
James Dean Cory
Last Edited By: DrDiff
02/29/08 03:58 AM.
Edited 1 times.
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jmswms |
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Thanks Luf. Yes, I definitely plan to put in a swapout section and try a crossover to make a single lane rally track as I experiment with different things.
I'm not sure, however, that two 2x6' sections will allow for much of a "Nurburgring" straight, especially since part of the straight would be
the swapout section. I'm actually thinking now that I need to shorten the track a bit (so it'll fit in my office, which is only 10' wide).
Actually, lots of smaller rooms are only 10' wide so I think it make sense to make it a bit shorter (as much as it pains me). So, I'll try two
2'x5' sections for a 2'x10' track. Something like this:
Last Edited By: jmswms
03/01/08 06:07 PM.
Edited 1 times.
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jmswms |
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Well, I finally got started with routing this track. Here's the plan that I ended up with.
I built frameworks for two 2'x5' sections. Straight is raised about 5", and I've planned to use the area under the straight for storage. I've also put in a "swapout" section, which I'll use to change the track between digital and analog. Here's what the framework looks like.
And, a friend helped get me started on routing the left side of the track. We used the flexstrip from "the oldslotracer", which worked wonderfully. The switchbacks aren't quite as radical as the original plan (because we were afraid the strip might break), but the strip worked wonderfully. The routing was actually easier than I anticipated, although this was a bit tricky because of how tight the curves are. Obviously, this is a squeeze section before going into the main straight so there will be no passing on the switchbacks!
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slider2 |
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Looks really good so far Bill. But, ahhh, you do know, don't you?... Once you've put a router to wood, your soul is lost; you'll never go back.
You'll find yourself planning the next one before this one is even half finished. Just a friendly warning, but it's already too late.
Greg
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jmswms |
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slider2 wrote: I hear you Greg, "Once you start down the dark path, forever will it dominate your destiny." Actually, this is already just a test track for a larger track. Still, I've got my highly scenic-ed 12'x6' already in the garage and won't be able to do anything significant with the router until that one disappears! Okay, some lessons learned today. #1 -- if you undercut MDF, it's pretty easy to break MDF. #2 -- 1/2" MDF doesn't like to bend a lot (should have used 3/8", but couldn't find any at local stores). #3 -- I don't like working with "Bondo" very much, but it fixes everything... So, here's the catastrophe ... it cracked in one place and broke in another place.
But nothing that can't be fixed with a lot of bondo. I blocked it on both sides of the break, screwed down the MDF, and patched it with bondo filler. Here's what it looked like after the repair. So, in the end, it just took some extra time, but no permanent damage done.
And, with both sides routed, a quick spray coat of gray primer, and here's what it's starting to look like. Now I've got to do the "swapout section" and then route the connections between the two sides.
Last Edited By: jmswms
03/31/08 01:19 AM.
Edited 1 times.
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Asmith |
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Looking great! The split in the road on left side is a cool idea, and so is the storage space. Lot's of scenery options but compact size.
I like it! Alan
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jmswms |
Routing finished... | ||
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Now the routing is finished, and I can start thinking about the scenery. I'm thinking desert oasis motif.
I'm not exactly sure, however, how to get the right color for the sandstone rocks. I think it needs to be a bit more orangish -- maybe I need some more raw sienna.
Last Edited By: jmswms
04/06/08 08:07 PM.
Edited 1 times.
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jojt45 |
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I think the color looks good. It's coming along nicely, keep the pictures coming. Jim
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jmswms |
coloring | ||
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I'm still working on the colors of the "sandstone". This first example uses a bit more "raw sienna"...
But then I decided to try more "burnt sienna", which gives it more of the reddish sandstone look. Which is better?
Last Edited By: jmswms
04/09/08 11:19 PM.
Edited 1 times.
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