Scrambler C

[goodcheer]

I might be missing something but the rules don't mention how wide the track is to be.....

The track width is described in 2.b.: "within a 2.00 track width." (2.00 m)

Sorry. I might have been confusing this with Wheeled Vehicle track width (B). I have been helping with both events and all these rules are about to get the best of me. Thanks.

[InfiniCuber]

In attaching dowel to hold the egg, is it OK to drill a hole through the backstop and stick the dowel through the hole? I know the rules say "no holes" in the backstop but, with the dowel going through the "hole", I would think that the end result is that there isn't a hole? If that is not allowed, I guess I could glue the dowels but I just don't think that is very secure.

I went to the Wright State Invite over the weekend, and Scrambler was being run by the national event supervisor for Scrambler. He answered my question about the dowels and drilling a hole in it. He said as long as there are no OPEN holes, it is completely fine. I had used hot glue to glue my dowels to my backstop and he said that at a state or national competition that isn't considered flat (as i had a small mound of glue around the dowels). So in short, YES you can drill holes for the dowels. Just no OPEN holes.

Technically this isn't an official FAQ or clarification, but since I got it from the guy who wrote the rules himself, I'm sticking with it!

[syo_astro]

In attaching dowel to hold the egg, is it OK to drill a hole through the backstop and stick the dowel through the hole? I know the rules say "no holes" in the backstop but, with the dowel going through the "hole", I would think that the end result is that there isn't a hole? If that is not allowed, I guess I could glue the dowels but I just don't think that is very secure.

I went to the Wright State Invite over the weekend, and Scrambler was being run by the national event supervisor for Scrambler. He answered my question about the dowels and drilling a hole in it. He said as long as there are no OPEN holes, it is completely fine. I had used hot glue to glue my dowels to my backstop and he said that at a state or national competition that isn't considered flat (as i had a small mound of glue around the dowels). So in short, YES you can drill holes for the dowels. Just no OPEN holes.

Technically this isn't an official FAQ or clarification, but since I got it from the guy who wrote the rules himself, I'm sticking with it!

Don't know if I've put in my two cents, but I actually did this last year. Drilled holes into the backstop, stuck them in, and I had extra dowels prepped. Held up pretty sturdily I'd say (moreso than a wad of glue holding it). Also, the person that runs Scrambler in my state is that nats supervisor (BroNi is the best!), and he didn't question it. Or else he didn't notice it, but then I think that goes to show you can do it without having open holes. I don't think the backstop rules have changed really from last year (don't take my word, haven't read the rules in depth).

[InfiniCuber]

I went to the Wright State Invite over the weekend, and Scrambler was being run by the national event supervisor for Scrambler. He answered my question about the dowels and drilling a hole in it. He said as long as there are no OPEN holes, it is completely fine. I had used hot glue to glue my dowels to my backstop and he said that at a state or national competition that isn't considered flat (as i had a small mound of glue around the dowels). So in short, YES you can drill holes for the dowels. Just no OPEN holes.

Technically this isn't an official FAQ or clarification, but since I got it from the guy who wrote the rules himself, I'm sticking with it!

Don't know if I've put in my two cents, but I actually did this last year. Drilled holes into the backstop, stuck them in, and I had extra dowels prepped. Held up pretty sturdily I'd say (moreso than a wad of glue holding it). Also, the person that runs Scrambler in my state is that nats supervisor (BroNi is the best!), and he didn't question it. Or else he didn't notice it, but then I think that goes to show you can do it without having open holes. I don't think the backstop rules have changed really from last year (don't take my word, haven't read the rules in depth).

Yeah, I know we could do it last year, but I got hung up on the "no holes" rule and thought that meant whatsoever. But glad to see I can still do it, cuz that means stronger backstop!!

[bernard]

Not sure if this applies to anyone else here, but for my scrambler I trigger my device by pulling out a cotter pin which has a loop of string which the pencil goes in. At our invitational this past weekend, one of my runs had a violation because my pin hit the ground after I pulled it out, so if you're using a similar approach, be sure your pin doesn't hit the floor.

[InfiniCuber]

Not sure if this applies to anyone else here, but for my scrambler I trigger my device by pulling out a cotter pin which has a loop of string which the pencil goes in. At our invitational this past weekend, one of my runs had a violation because my pin hit the ground after I pulled it out, so if you're using a similar approach, be sure your pin doesn't hit the floor.

I believe I replied to you on the Air Traj. thread, but I thought I'd bring up the idea again here so people in Scrambler can see. As I said on the Air Traj., I would use something such as an archery trigger, it is much safer and shouldn't give you any problems as far as the violations go. You can find relatively cheap ones too at your local sporting goods store.

Just a thought!

[someusername]

So I have just recently finished a new egg transport vehicle for scrambler, but I keep running into the issue of skidding. the wheels are the Vex robotics 2.75" diameter with high traction tires on. The vehicle is roughly 450g, and the braking system is a square nut on a threaded axle that slides in a channel until it reaches several stopping nuts. All of the wheels and the track were cleaned evenly before each run.

[InfiniCuber]

So I have just recently finished a new egg transport vehicle for scrambler, but I keep running into the issue of skidding. the wheels are the Vex robotics 2.75" diameter with high traction tires on. The vehicle is roughly 450g, and the braking system is a square nut on a threaded axle that slides in a channel until it reaches several stopping nuts. All of the wheels and the track were cleaned evenly before each run.

What may be happening is something which I dealt with many times (I've done many vehicle events). The car is stopping too suddenly for the speed. It locks the wheels, and the car unexpectedly skids because of the (relatively) high speeds. What I've done to correct this is add something "squishy" or soft such as sponge or rubber or something that not only weakens the impact of the nut but has a gradual stop. Your vehicle seems heavy enough to stop well (unless most of the weight is on the side of the car that does not have the brake?), and your wheels seem fine, especially if well cleaned.

[iwonder]

So I have just recently finished a new egg transport vehicle for scrambler, but I keep running into the issue of skidding. the wheels are the Vex robotics 2.75" diameter with high traction tires on. The vehicle is roughly 450g, and the braking system is a square nut on a threaded axle that slides in a channel until it reaches several stopping nuts. All of the wheels and the track were cleaned evenly before each run.

Skidding at the beginning of the run or the end of the run? They seem like heavy wheels, which could cause them to skid at launch (if your launcher is quite fast).

[someusername]

Skidding at the beginning of the run or the end of the run? They seem like heavy wheels, which could cause them to skid at launch (if your launcher is quite fast).

I don't believe that they are skidding at launch. It's a simple falling mass launcher (I am still developing a spring launcher). But they skid about 20cm when going for the 9m distance.

On another note, what is a good mass for the wheels and a good mass for the car? I'm Still fairly new to this event.