Products - Slot Cars - Lap Timer for Windows

Lap Timer for Windows :
  Overview Pictures Dead Strip Option
  Manual Videos Reed Switch Option
  FAQ Troubleshooting Ir LED Bridge Option
  Screen Shots Software Updates  

Installing infrared sensors

Follow these steps for the easiest way of installing sensors.  
The advantages are perfect vertical installation of sensor and easy removal of sensor from track.
Shown is a Ninco track but  the same technique can be used for all plastic tracks.

#1  Put a big blob of hot glue on the underside of the track to build up the track thickness. blob.JPG (74244 bytes)
drll.jpg (62305 bytes)  #2 Let it cool for several hours then drill the hole for the sensor using a 1/8" drill bit.  
#3 Clean the edge of hole with a bigger drill bit.  cleanhole2.JPG (135332 bytes)
tophole2.jpg (63228 bytes) #4 It will  look like this

On HO tracks the sensor is mounted between the rail and the slot

#5  Insert Sensor. It will fit snugly into the hole insertsensor.JPG (90761 bytes)
blobdone.jpg (67519 bytes) #6 Done!! You don't need to  glue it in place.  
 #7 Completed 

 Secure the sensor cable under the table so weight of cable does not pull the sensors out of the holes.

 sensor.jpg (133260 bytes)