Simple Machines B/Compound Machines C

[hscmom]

Yes, knowing the minimum loop size works fine if your design allows you to slip the mass over the end of the beam, but some excellent designs in the way they are connected don't allow that. I am hoping the clarification comes out soon.

[joeyjoejoe]

Yes, knowing the minimum loop size works fine if your design allows you to slip the mass over the end of the beam, but some excellent designs in the way they are connected don't allow that. I am hoping the clarification comes out soon.

I'm sure the job of a SOINC rule-maker is a tough one. You want to define a framework of rules so that everybody is on the same page but don't want to stifle creativity. Actually, you want to encourage it!

[chalker]

[
Or was it that the rules so clearly state the size of the loops so that levers can accommodate the loops in their design. A loop that a golf ball can fit through allows for other solutions.
.

The reason for the wording is actually much more mundane: it's really hard to come up with a standard size 'hook' and/or description of such. We've struggled with this language in many events for many years. Even the simple eye hook in the hardware aisle at your local home improvement store isn't standardized. We've considered lots of options, including coat hangers (which also aren't standardized). I'd be really interested in hearing any suggestions anyone might have regarding this.

[bernard]

[
Or was it that the rules so clearly state the size of the loops so that levers can accommodate the loops in their design. A loop that a golf ball can fit through allows for other solutions.
.

The reason for the wording is actually much more mundane: it's really hard to come up with a standard size 'hook' and/or description of such. We've struggled with this language in many events for many years. Even the simple eye hook in the hardware aisle at your local home improvement store isn't standardized. We've considered lots of options, including coat hangers (which also aren't standardized). I'd be really interested in hearing any suggestions anyone might have regarding this.

For Boomilever last year with the J-bolt, they were able to make the specifications and installation very specific (the exact UPC of the hook, how far the hook would extend out from the wall). I think a similar procedure could be followed for this event, though requiring a specific part will probably make the event a little more inconvenient to run. I remember our coach was only able to find the J-bolt for Boomilever at one store in our area.

[hscmom]

The rules are well-written.

[chalker]

For Boomilever last year with the J-bolt, they were able to make the specifications and installation very specific (the exact UPC of the hook, how far the hook would extend out from the wall). I think a similar procedure could be followed for this event, though requiring a specific part will probably make the event a little more inconvenient to run. I remember our coach was only able to find the J-bolt for Boomilever at one store in our area.

Yep.. that was a consistent problem we found. Sure we can pick a specific part and provide the UPC for it, but the availability of that part across this great country of ours is going to be hit or miss. Perhaps I should add to my original comment and indicate 'readily available' as well as inexpensive, sturdy enough to handle up to a 800g mass, while not overpowering a 20g mass, etc. etc.

[slytherin]

So, has FAQ over loops been answered because I don't see how to get to the answers for that..

[chalker]

So, has FAQ over loops been answered because I don't see how to get to the answers for that..

What FAQ specifically are you asking about?

[slytherin]

So, has FAQ over loops been answered because I don't see how to get to the answers for that..

What FAQ specifically are you asking about?

The one for if having moving hooks on your simple machine is OK, and won't count as a moving mass

[chalker]

So, has FAQ over loops been answered because I don't see how to get to the answers for that..

What FAQ specifically are you asking about?

The one for if having moving hooks on your simple machine is OK, and won't count as a moving mass

No.