MID BC - new track build

[Broman62]

Awesome build...thanks for sharing guys!!! :auto-layrubber: :auto-layrubber:

[Cgyracer]

Continued with the MID BC table build the past weekend Friday and Saturday. Five 49" wide tops were completed in various lengths up to 11 1/2 feet for the deepest portion of the table.











Drove the completed table tops home. Lucky the weather held up and there was no rain!



Installed 1x4s on top of the framework for mount points plus installed 1/4" MDF on top of the 1/2" gussets to match the height of the framework and to clear the bolt heads.



Table tops all mounted, need to build some nice struts underneath for the curvy parts. But it is very solid everywhere else.

[Cgyracer]

[Cgyracer]

The week before Christmas I had some time after work to design and cut out the roadway. This week it's been too hectic to do anything with work and Christmas in the mix!
I really hope to do some work this week.....after work yesterday I was hoping to continue but I was totally sleep deprived and kept nodding off whether I was sitting or walking! :violin:

The next step!




Pictures of last weeks work I managed to make some time for.
Drawing the roadway with Luf's strip

Increasing Radius Corner over the bridge


Decreasing Radius Corner sloping downwards


The right side of the straight has a large 4 foot radius corner after the long straight that will be banked.




The S's!










Lucky the weather is still very mild (fishing weather!)



Roadway finished for now. Left a small section in the middle to cut out later. Once I route the slots and create the elevation changes, I will measure the new roadway piece as the elevations will create new measurements to connect the two ends of the roadway.

[dw5555]

Beautiful, the table in itself is a work of art. Well done.
Dave

[chappyman66]

Agree this is a beautiful build.

[ken weir]

Great job Rob and Richard..can't wait to run my cars on it! A little warmer in the basement than it would be in the garage. Happy new year to all.

[FC47]

It really looks great guys, nice work, definitely will be a reward to drive it!!

[Cgyracer]

[Cgyracer]

This past weekend I had some time to route. My shop vacuum was outdoors and I duct taped the long 2 1/2" hose to the router plus I sealed the rest of the router with duct tape. No dust at all. :banana-dance:



Routing the center lane with the Routing Fence.




Sintra in the center slot to route the two outside lanes. Thanks F1Fan for the extra long piece of Sintra.


Finished the three lanes

[tracyridge]

that is one awesome track!!!...… and that's an understatement !!! I like the good mix of twisty bits, fast corners and straights to stretch your legs!

John

[ken weir]

WOW!!! All that and jam a Birthday celebration in also. Great job Rob. You are a inspiration to many of us.

[Cgyracer]

It's been a busy week of firming up MID BC's elevations. I wanted a quick way to experiment with various elevations so I made a series of riser blocks (35 blocks actually!) varying in increments of an inch. If I wanted to try something out.... I grabbed a different set of blocks. I secured the riser blocks in the end ( after three days of using levels and straight edges of various lengths!) and quickly made modifications with my table saw for any banking and odd sizes in between.

Riser Blocks




Risers going into place.....seriously I must of done this 20 times.....then stood and stared at the track for a half hour trying to visualize!





Once I found the track elevations I liked, I added extra supports in between my main risers. This is where the table saw came in very handy to get the exact cut I needed. Various lengths of straight edges and levels helped me ensure the roadway was smooth where I wanted it to be. This part took me the most time as I was looking for any potential problems such as a rise before a change in direction that would cause cars to come off unexpectedly. The devil is in the details!! Mind you we all like various types of roadways....just going by what I like!

Nice and straight! I did find a slight hump before the corner but I straightened it!


I needed a drink after building and inspecting how every riser affected the roadway!

[Cgyracer]

Next up this week is securing the roadway to the risers, bondo, and painting the slots / roadway.

Here's a pretend lap!

At the end of the main straight is a sweeping 4 foot radius corner that is banked 15 degrees.



The cars then travel along a short 8 foot straight until they reach my version of a corkscrew. A decreasing radius corner that drops rapidly and changes direction. The elevation change is 6 inches in four feet.



From under the bridge the cars encounter an eleven foot S as they travel uphill.



Series of S's of various decreasing / increasing dimensions. The first curve is slightly banked and the last two curves are level.



The bridge is a increasing radius curve that is tight in the beginning but very broad at the end allowing the cars to really speed up (all of this is what I'm hoping for!!)



The cars go into the second longest straight that has a three inch rise. Smooth and gradual enough to hopefully not go airborne....I think I got it right!





The straight leads into a tight 4 foot diameter corner. Should see some good side by side action barreling into this corner and afterwards leads to the next long straight with the banked corner

[chappyman66]

Incredible track! Can't wait to see the first laps!