Or what you can do with some of those Tyco's 9" radius 1/4 circle curves we are plenty of ;-) Every set nowadays contains a lots of 9 inches radius curves. Frankly speaking I have too much of those curves and usually only few are used in my racing layouts. I have a big box full of unused curves and a plastic racing track with a limited choice of radii. Tyco/Mattel offers 1/4th and 1/8th turns only, so if you want different radii curves you have to route a wooden track; routing a track is a very good choice but building it is a long and dusty journey !    Hacking (hype!!) and recycling standard 9" curves is a simpler way to obtain new radii. From a single 9" 1/4th circle standard curve you can obtain, with little work, a nice 60° curve that fits snap on into your layout without problem! With a little more work you can transform another useless 90° curve into a 30° curve and, with a lot of work, you can even shrink a 9" 1/4th turn into a 6" 1/4th curve !! Isn't it amazing ?? :-))   And now the mighty recipe !!   Tyco's 60° curve 1. You will need at least 2 60° curves hence take same standard curves out of the box and remove the four rails from each piece. Clean the track pieces and roll over the first curve; rails are secured to the curve so you have to work with pliers to free the rail. Using a dremel tool file the rails until you can reinsert them into the curve's slit. Flip the curve and mount it onto a cardboard base, trace radii and determine the curve's center.    2. With a protractor trace 2 other radii and divide your curve in 3 parts; each sector must be exactly 30°. Taking your time carefully cut the plastic curve along this 2 radii and you will obtain 3 pieces. Discard the central part and file down the other two parts. Secret here is a neat cut, a good cut will mean less problem for your cars. Align the 2 parts very carefully and insert one or two rails previously removed and filed. 3.Flip the curve again taking care to mantain the two parts aligned and with the rails in place. Cut the discarded piece to strips and super glue them to the underside and secure the joint. Sometimes I use balsa woods to reinforce the joint. Insert the other 2 rails and level all 4 rails using a small hammer. Cut the rails and eventually use a dremel tool to round the cuts.    Click on thumbnails to enlarge pictures Variation: 60° curve with apron 6 inch curve with apron    4. It is not a difficoult task and within 30 minutes you can have some unique pieces and add a different flavour to your current racing layout. If you file down the slot this piece can be very smooth and your cars will not have problem on it Usually I assemble balsa aprons and mount them to curves with superglue. I use 2 sheets of balsa (6mm + 1mm) to obtain the 7mm height of Tyco's track pieces.