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Substituting Wood Cup For Plastic Cup

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Forum topic by JackInGalway posted 11-09-2010 11:57 PM 1281 views 0 times favorited 6 replies Add to Favorites Watch
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JackInGalway

31 posts in 2232 days


11-09-2010 11:57 PM

Topic tags/keywords: question

I can purchase these plastic cups for 1 euro, but i would like some feedback as to making these cups from wood. This may be way impracticable but I would like to try.


———
This is how far I gotten….

... kinda rough :-(

This is what I will eventually make.

—-
I can’t think of anyway to make the cup roundish and strong. Maybe I need a whole new idea of holding the PVC pole up, Instead of copying the plastic cup. I do not have a Router.

That you all in advance… Jack


6 replies so far

View ghazard's profile

ghazard

382 posts in 2973 days


#1 posted 11-10-2010 04:13 PM

Instead of supporting the pole in a rounded cup…I think it could be stable enough if supported in a “V” shape of some kind. Not sure what tools you have but this is surely achievable with basic tools.

Good luck

Greg

-- "Hey, you dang woodchucks! Quit chuckin' my wood!"

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Bluepine38

3341 posts in 2548 days


#2 posted 11-10-2010 05:24 PM

Looking at the finished product, it is probably used in a contest with dogs, do the rules require that the
poles be put in the required cups so that they will have an equal tendency to fall of or stay in when bumped
or hit and therefore detracting or adding points. If that is the case, then a substitute would be an expensive
way to go, unless it was just for practice. A couple of hole saws in the right sizes could replicate the cup part,
then you would have to shape them with the slope by hand and glue and or screw them to a thin board or
piece of plywood for attachment to the post. Hope this helps, if not good luck with the cups and the trials.
What type of dog and or sheep do you have?

-- As ever, Gus-the 77 yr young apprentice carpenter

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JackInGalway

31 posts in 2232 days


#3 posted 11-11-2010 12:30 AM

ghazard
The V idea is good but the pole needs to fall off if hit by the dogs legs. A V would hold the pole in place much better than a cup / U shape.

Bluepine38
The pole does need to move easily and fall off if hit by the dog. I gonna post a drawing of a single piece of wood with an angled bit sticking out, so as to mate with slot in the the upright 2×2. The above pic “This is how far I gotten….” has a screw going through the wood cup into the 2×2.

The problem is that the wood cups are too long and the poles hit the above or below cups and don’t fall off.
The bottom 4 wood cups are spaced only 2” apart, this is, I guess, why people use the thinner plastic cups.

I should have explained myself a bit better.
Here is the intended use of this Agility Jump.

—-
I have a 7 yo female German Shepard, she is getting a little too old now for the higher jumps and difficult obstacles but the dog loves the game and bets me around the course every time.

If you guys have time please check back after I post the drawing and lemme know what you think.
Thanks Jack

View GregD's profile

GregD

783 posts in 2599 days


#4 posted 11-11-2010 04:19 AM

A very simple thing to do is use two closely spaced dowels to hold up the end of the pole. In cross section it will look like a big circle resting on two small circles. If the dowel spacing is very small the pole will come of very easily, if the dowel spacing is only a bit less than the pole diameter the pole will not come off so easily. A V notch in a support block will also work, just make the open end of the V small compared to the diameter of the pole – just a small notch in the top of the support block.

-- Greg D.

View Jack_T's profile

Jack_T

623 posts in 2494 days


#5 posted 11-11-2010 02:57 PM

1. Why not cut the blocks on a band saw with a much shallower cup.You only need a slight arc.

2. Alternatively, you could cut the block you already have to be narrower. This would simultaneously decrease the depth of the cup and narrow the support for the pole. The pole would be easier to knock down when struck.

3. Finally, you could make a duplicate of the plastic one. Either from a two pieces of wood or from a rectangular block. Note that the horizontal portion of the plastic one is sloped from the vertical portion to its tip as well as having a cup to it. From a rectangular block drill a hole whose circumference matches the arc you want your cup to have. Then make on cut on an angle to a point to create the slope and a second cut to free the waste. This would create the exact form of the plastic one.

-- Jack T, John 3:16 "For God so loved the world that he gave his only Son, so that everyone who believes in him might not perish but might have eternal life."

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JackInGalway

31 posts in 2232 days


#6 posted 11-14-2010 12:37 AM

GregD
Jack_T

Hey thanks for the assistance, I tryed to come up with a drawing cuz I can’t seem to get want i want to do into a tangible object in my head. I going to try your suggestions, the V and the dowel and duplicating the plastic with two bits of wood, i will post the best i can do.
Thanks again, I will keep trying…... jack

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