Practice Motocross Starting Gate

This two-bike electronically dropping motocross practice gate can be activated by the push of a button with a delayed dropping time. The dropping mechanism consists of an Allen Bradley PLC with a start and stop button and a light to signal to the riders that the gate has been activated. The light will stay on for 25 seconds, and then the gate will drop in 3-5 seconds. The dropping mechanism is enclosed in the toolbox and can all be removed by two nuts to protect the mechanical and electrical components from the elements. My friend's parents were getting sick of manually dropping the gate all the time, so I built him this for his practice track.

Category:

Sports

Tags:

• electronic
• motocross
• gate
• motorcycle
• offroad
• engineering
• PLC
• solenoid
• racing
• practice
• starting
• supercross
• arenacross
• holeshot

[rideforlife232]

The most expensive part of the whole project was the Allen Bradley MicroLogix PLC which is worth around $499 new. I was able to purchase a used PLC off eBay for just under $100. A lot of the things I had lying around or they where just donated to me. It does not take much to design and build the actual gate, although a few hours were spent on the design and machining of the dropping mechanism. Since I did everything myself, I really don’t have much more than $150 into this project.

[RacerDude96]

After all that, you get a shity start? tisk tisk tisk..

[yz81guy]

do u have any plans for how to build the gate i want to have my friend build me one but he has never seen one in person to know where to start

[mad1bmx4rider]

oi u dickheads giv him a break, yea he's not great at starting but who gives a shit and like someone sed before wats the point of practising if ur already pro at it.

[justinchaffin1013]

can you tell me how to practice a start i try it in my yard but the bike just stalls on me i hold the gas at a good amount to go fast put it in 2nd or 1st hold the clutch to a point were it wants to take off like its starting to pull

[dbracr27]

@gianismotocros4ever thats not necessarily true..

[gianismotocros4ever]

If you fall without your chest protector even at a low speed youre gonna have some problems man.

[TheKillgore521]

@rideforlife232 nice nice I also work with PLC's i school :D we use the SIEMENS S71200

Those are brand new ones :D

[ThunderChicken12]

Here's some advice pal, rise your elbows a little higher and lean forward, you'll see it'll make your start faster and with a better handling over the bike

[ChaseTheAce45]

haters will be hatin... Shit start nice gate lol

[BrettCooperMedia1]

You dont let on and off the gas? wtf r u doing

[47trx400]

@RacerDude96 well whats the sense in building a gate to practice with if your already a pro at it?