LBRC
07-25-2005, 10:23 PM
http://lbspd.com/v-web/gallery/albums/album56/Spud_1.jpg
Ball bearings, ceramic magnets, gold plated contacts connecting specially tweaked brushes, aluminum strap, the armature is wound with 34-gage hi-temp wire, has a diamond-trued comm, and a precision balance job.
Turbo required, on a stock Epoch the car barely crawled, then the motor driver IC smoked and died :( .
http://lbspd.com/v-web/gallery/albums/album27/Test_1.jpg
For this test the power was supplied to the motor buy disconnecting the motor wires from the 2x2 Turbo/LiPo Epoch and a completely stock Epoch with the 3 cell battery charged using a LRP Comp. Pro charger then connecting each motor with a set of test leads while taking the readings. A multimeter was hooked in series for current and a Team Orion MPM was used to read the RPM. For consistency the same transmitter and crystals were used for each car. The readings were taken at full forward power. As chance would have it the voltage reading without the motor by both cars was 3.8 volts.
Since it is now clear that the Epoch is not dead :D I have resumed my quest for the ultimate, and eventually affordable Epoch motor upgrade. The spud was my first ultimate Epoch motor attempt based off professional grade AFX and Super G slot car parts, with a custom wound and balanced armature the prototype was not cheap to make, around $100 in parts alone, not counting the failures; i.e. parts that didn’t fit, magnets that where two strong or weak, armatures etc.
The third motor “HP” in the above test is a Tommy High Power slot car motor modified to fit in an Epoch for comparison. Unfortunately pro slot car motors are designed to run on 18 to 20 volt 3 amp tracks and obviously don’t do very well even with a LiPo or 4 cell.
Ball bearings, ceramic magnets, gold plated contacts connecting specially tweaked brushes, aluminum strap, the armature is wound with 34-gage hi-temp wire, has a diamond-trued comm, and a precision balance job.
Turbo required, on a stock Epoch the car barely crawled, then the motor driver IC smoked and died :( .
http://lbspd.com/v-web/gallery/albums/album27/Test_1.jpg
For this test the power was supplied to the motor buy disconnecting the motor wires from the 2x2 Turbo/LiPo Epoch and a completely stock Epoch with the 3 cell battery charged using a LRP Comp. Pro charger then connecting each motor with a set of test leads while taking the readings. A multimeter was hooked in series for current and a Team Orion MPM was used to read the RPM. For consistency the same transmitter and crystals were used for each car. The readings were taken at full forward power. As chance would have it the voltage reading without the motor by both cars was 3.8 volts.
Since it is now clear that the Epoch is not dead :D I have resumed my quest for the ultimate, and eventually affordable Epoch motor upgrade. The spud was my first ultimate Epoch motor attempt based off professional grade AFX and Super G slot car parts, with a custom wound and balanced armature the prototype was not cheap to make, around $100 in parts alone, not counting the failures; i.e. parts that didn’t fit, magnets that where two strong or weak, armatures etc.
The third motor “HP” in the above test is a Tommy High Power slot car motor modified to fit in an Epoch for comparison. Unfortunately pro slot car motors are designed to run on 18 to 20 volt 3 amp tracks and obviously don’t do very well even with a LiPo or 4 cell.