Increasing the Pre-Bend on pole manufacturing?

[skyshark177]

Now, is the pre-bend made in the middle of the pole or at the mid mark of the sail piece?
I was thinking maybe a increased pre-bend just below the sail piece would help the vaulter get past that initial take off and give an advantage to the vaulters that can preform the free-take off. I'm not saying that the free-take off is better, every athlete is different, but i was think about a higher/easier take-off angle.

[Decamouse]

Bruce - ya know how to hurt a guy - now PV Junkie will let me hear about it -

Time thing - you misread my post - I said setting on "my" computer - not "your" computer

The higher take-off angle is why we experimented with it - But as pointed out - hard to get a major pre-bend over short area of the pole with compromising some structural integrity

[skyshark177]

But it can be done, right?

I was thinking what hockey players do with the blades of their sticks and a blow-toarch.
Not that it's the same thing, but it's like the idea.

[Bruce Caldwell]

Do you have a picture of this new pole tip?
I've read the threads in here, but never saw a picture of it.

But a drawing is avaliable write to me and I will send you the file
bruce@essxsport.com

[Bruce Caldwell]

Now, is the pre-bend made in the middle of the pole or at the mid mark of the sail piece?
I was thinking maybe a increased pre-bend just below the sail piece would help the vaulter get past that initial take off and give an advantage to the vaulters that can preform the free-take off. I'm not saying that the free-take off is better, every athlete is different, but i was think about a higher/easier take-off angle.

Take-off -free or normal can be enhanced with a stiffer butt area of the pole which allows with the proper take-off a higher bend in the pole. This is our solution to this need mentioned in Previous posts, the negative is our poles as light as most brands do have a little bit more carryweight.
OZ=lbs when dealing with the butt end of a pole. That is why we chuckle often when we get a comment that our poles have a greater carry weight than other brands and we see the vaulter with gobs of tape on the end of the tip????? We recommend the EARL Bell PVC pole protector rather than tape!!!

SkyPole in the old days used to prebend the poles in the lower 2/3's of the pole!!

[rainbowgirl28]

About the time thing - if I read Becca post correctly - it is the clock on your own computer that is the baseline for the time stamp - so if my time setting is off that would contribute to a difference based on true GMT -

No the clock on the server is what it is based on. All the posts are made in GMT based on the server. It does not matter what time or date are on your computer. Your settings then interpret this time to whatever you want to see.

[skyshark177]

This probably would be very difficault, but what if you changed the curvature of the bottom area of the pole where the increased pre-bend is to more like an oval shape?
I mean making it oval and the two points of the oval shooting foward and back towards the vaulter when the pole is in the plant position. Since the pole creates an oval shap in the opposite directions when bending/flexed, why not reinforce this shape by creating the oval in a perpendicular direction. I don't know if you can understand what i'm talking about but i hope.
This idea along with the idea of more pre-bend.
Of course you would have to change the design of the mandrel and/or apply sheets of fiber in certian area's of the pole.
I know this sounds very far fetch, but I believe it's worth testing out.
it would probably make the integraty of the pole weaker tho, like you said about pre-bend, but maybe not if it's made correctly.

[skyshark177]

and the proper distribution of heat is applied in different areas too.

[skyshark177]

Hey,
The pole tip looks very cool.
When do you think it will be availible for sale.

[Decamouse]

Can be - yes - trade off's not worth it - higher breakage rate, harder to ship or store, harder to use unless very consistent plant - highly recommend against trying to put your own pre-bend in a pole -

[skyshark177]

Yes, cost would increase, but if it worked, the demand would increase as well, don't you think?

I wonder if it would cause a problem with pole placement apon the plant tho. wouldn't it direct it self into the box the right way, all the vaulter would have to do is make sure that the pole is held firmly and in the correct position throught the drop.
I know most vualters don't grip the pole that firm during the approach, but it would start a different style of vaulting.

[rainbowgirl28]

Yes, cost would increase, but if it worked, the demand would increase as well, don't you think?

I wonder if it would cause a problem with pole placement apon the plant tho. wouldn't it direct it self into the box the right way, all the vaulter would have to do is make sure that the pole is held firmly and in the correct position throught the drop.
I know most vualters don't grip the pole that firm during the approach, but it would start a different style of vaulting.

I would think the greater the pre-bend, the more gravity would want to pull it the opposite way on plant.

Think about it. Stand on the runyway and grip the top of a pole with an obvious soft side. Plant the pole above your head and turn it so it's facing the proper way upon plant. Now relax your grip on the pole. If you grip it loose enough, I think it will roll back the other way.

I would imagine, the bigger the prebend, the more pronounced that effect would be. Not a problem for a skilled vaulter, but definitely a problem for beginners who don't plant the pole the same way twice.