Router base plates are now 3D printed, and customized to your needs. I can include the holes necessary for your specific router with a simple photograph (with a ruler laid across) of the base of the router, or send me the important measurements. I can also adjust the plate radius options for any lane spacing you want, such as to Scalextric lane spacing, if you're making a digital track and want to maintain the same spacing as the digital pieces. Any lane spacing options are possible, and the plate can have up to three options in one, as shown, but at any spacing you want. If you don't already have a router, I can print it solid so that you can drill the holes later, though that's not recommended.