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Was walking round costco yesterday (Read 10400 times)
Curious Aardvark
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Was walking round costco yesterday
Nov 16th, 2017 at 7:54am
 
And spotted a football goal and basket ball post - all made from lightweight plastic tubing.

So now I'm thinking a lightweight slinging target with netting for a backboard, already have a baske to substitute for the disc - actually I have a spare disc as well.
My mate who was a plumber, says you can use standard joints and fixings.
I can easily make anything non-standard on one of the 3d printers. (currently have 3 and one being built from scratch and one I'm buying myself for christmas, on the way)

I desperatly need a target I can easily carry and put up and take down quickly. My current target takes a long time to erect and take down and is bloody heavy. Good for whole day or multi day events, but bloody useless for a short training session.

So watch this space Smiley
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Re: Was walking round costco yesterday
Reply #1 - Nov 16th, 2017 at 8:13am
 
Sounds interesting. I would love to see the results.
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You are a great guy Kick but also slightly scary at times. - Morphy
"Nothing matters, but it’s perhaps more comfortable to keep calm and not interfere with other people." - H.P. Lovecraft, in a letter to Frank Belknap Long, 7 October, 1923
 
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Re: Was walking round costco yesterday
Reply #2 - Nov 16th, 2017 at 8:29am
 
I second that, otter.
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Re: Was walking round costco yesterday
Reply #3 - Nov 16th, 2017 at 9:20am
 
i wonder too what the end result will be.
paper targets, cloth , bushes are the cheap solution

from what i understand you need to make a frame to hang things from
in addition to pvc tubing you could use tent poles, which are gonna be compact and flexible(may withstand some hits)
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Morphy
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Re: Was walking round costco yesterday
Reply #4 - Nov 16th, 2017 at 2:38pm
 
What type of ammo are you planning on using with it CA?
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Curious Aardvark
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Re: Was walking round costco yesterday
Reply #5 - Nov 19th, 2017 at 12:43pm
 
ammo wise - it largely depends on what sort of netting I can get.

Basically if you attach the netting with bungee cords  it will absorb the impact of most things.
And if you have enough netting to use 2-3 layers, or more - then it will also take a lot of abuse before holes appear.

Clay is fine, my current practie target ammo is a weighted sockball.
Using lead weights I can get a rock sized missile of  a decent weight, that is practically indestructible. And also slightly irregular - like the rocks in mallorca. 

I'm also planning on making it a little smaller than a balearic target. On the same principle that training weapons should always be that bit heavier than real ones.

If I get used to hitting a smaller target - albeit with the diana at the same height, the full size target should be a doddle Smiley

Now those who've known me for a few years will know that my usual method for making stuff is to simply think about it for a while and fix it in my head, then simply just go and make it.
I don't generally do plans.

With this I've decided to go all conventional and actually design it in my cad software (openscad). That way I can print out a scale version and see how well it works.
Plus easier to work out how much tubing I need to buy.

I will try and keep any 3d printed parts to a minimum, so that if this works well - it will be easy for anyone else to make with standard plumbing supplies.

I'm also limiting the maximum length of pipes to 1 metre.
That way I'll be sure it will definitely fit in a car.
And will make the target size 1 metre square.

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« Last Edit: Nov 19th, 2017 at 1:58pm by Curious Aardvark »  

Do All things with Honour and Generosity: Regret Nothing, Envy None, Apologise Seldom and Bow your head to No One  - works for me Smiley
 
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Curious Aardvark
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Re: Was walking round costco yesterday
Reply #6 - Nov 19th, 2017 at 2:14pm
 
well that didn't take long.
Edited:
sling target made from  plastic plumbing parts
// balearic target= 120cm square, with 50 cm disc centered at 160cm off the ground.

running total parts:
topframe=4x1 metre lengths 4x corner piece, 1 t piece join.
Base=4x1metre 4xcorners, 1x tpiece,
side reinforcing props= 4x1metre 2x straight join,
centre prop= 1x 1metre length, 1x 50cm length, 1 x straight join, 1x t-piece 1x custom
custom parts: side prop supports, 30 degree angled x 4


The above is all standard 40mm abs waste pipe.

The side prop supports could most likely be improvised from existing joints - won't know till I go have a look round  a plumbing supply store. At the moment they'd be easy to print - but I'll try and get round that.
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target1.png (32 KB | 90 )
target1.png
target2.png (25 KB | 96 )
target2.png

Do All things with Honour and Generosity: Regret Nothing, Envy None, Apologise Seldom and Bow your head to No One  - works for me Smiley
 
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Re: Was walking round costco yesterday
Reply #7 - Nov 19th, 2017 at 3:41pm
 
Awesome!
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You are a great guy Kick but also slightly scary at times. - Morphy
"Nothing matters, but it’s perhaps more comfortable to keep calm and not interfere with other people." - H.P. Lovecraft, in a letter to Frank Belknap Long, 7 October, 1923
 
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Re: Was walking round costco yesterday
Reply #8 - Nov 19th, 2017 at 10:33pm
 
Good looking design. Can't wait to see it in action.
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Curious Aardvark
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Re: Was walking round costco yesterday
Reply #9 - Nov 20th, 2017 at 7:16am
 
haven't costed it up yet.

looking at 15 metre lengths (1 cut in half) at £4.50 for 3 metres.
£22.50

8 corner pieces  at 5 for £4.10 = £8.20
3 x tpiece = £2.90 (actually a 3 pack)

the cutom joins I might be able to make with the spare 50cm pipe length.

so currently - without netting you're looking at around £34

Add £7.50 for a roll of debris nettings:https://www.amazon.co.uk/Yuzet-Debris-Netting-Scaffold-balcony/dp/B016A8KWO4/ref...

And we're hitting just over £40.

The top frame and base can be kept assembled.

I've got a mate who's an ex-plumber and knows the cheapest places to get piping. Costings above are what I found online at acrewfix.

They do make 45 degree connectors, but I need 40 and 30. So will make those one way or another Smiley

Thinking I can cut angled pieces of piping. Cut a length in half long ways and just glue and screw them together to make a 30 degree piece of pipe that can be easily screwed onto a length.   

I did think about two reinforcement pipes at the corner of the top frame.
But 40mm pipe is pretty rigid, guess I could always add it on  if needed.

But for £40 I reckon it's worth a go Smiley

probably get a spare 3m of piping - so call it £45 ish

wonder if i can get 3m lengths of piping in the car ?

Oh yeah also need 3 straght joining pieces for the props - 5 for £4 - actually I'll need to use those for the angled sockets.

But hopefully we should be able to set it up and take it down quite quickly. No bolts or other long winded connection methods.

Drop something heavy on the base plate and it ought to be pretty stable.
My gym bag would do nicely and is always in the car.

The only non-standard part will be the angled connectors for the props.

So probably looking at £50 all in.
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« Last Edit: Nov 20th, 2017 at 11:14am by Curious Aardvark »  

Do All things with Honour and Generosity: Regret Nothing, Envy None, Apologise Seldom and Bow your head to No One  - works for me Smiley
 
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Re: Was walking round costco yesterday
Reply #10 - Nov 20th, 2017 at 11:44am
 
Just found out that the poplypropylene 40mm push fit pipe is actual half the price of the abs glue joint pipe.
So most likely go with that.
Fittings look same price.
Plus polyprop is way tougher than abs, much less incined to crack and a bit more flexible
I'll most ikely screw the permament joints together as well. .

As long as I can get the joined up pieces apart after use, should be good Smiley
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Do All things with Honour and Generosity: Regret Nothing, Envy None, Apologise Seldom and Bow your head to No One  - works for me Smiley
 
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Morphy
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Re: Was walking round costco yesterday
Reply #11 - Nov 20th, 2017 at 1:58pm
 
I don't how strong abs or polyprop is but I know pvc wont hold up to hits from sling stones. I remember Iron Goober made such a target and it lasted all of 1 direct hit to the frame.

You know...if you could make a target that was light, durable, compact and sets up quickly... that's the dream right there. What with your pill roller and now this you could have the beginnings of a Very Curiously Curious Aardvark's Primitive Online Emporium.
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Re: Was walking round costco yesterday
Reply #12 - Nov 20th, 2017 at 2:16pm
 
This isnt for slingstones.
primarily for target practice, range and target size with a wide range if dIfferent size and weight missiles.

Idon't actually need to practice with the actual ammo i'll use in mallorca. Just need to train my muscle memory to new target style, that should suit any missile.
so speed of putting up and portability is more impirtant than having some nutter with a bag of stones trying to break it.

Got a link to iron goobr=ers target ? Not a name i recognise.

Okay just gone through all 112 of irongoobers posts and can't find any reference to a target made of piping.
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Do All things with Honour and Generosity: Regret Nothing, Envy None, Apologise Seldom and Bow your head to No One  - works for me Smiley
 
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Re: Was walking round costco yesterday
Reply #13 - Nov 20th, 2017 at 4:53pm
 
Decided to add the side frame supports after all - it's another £3 or so, but might as well do it right.
My only issue is whether or not it'll be put-uppable by me on my own.

I figure: base on the floor, add centre frame support and side supports, then drop frame on top of them and add back props.
Should work.

So final beast will look like this:
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target3.png (32 KB | 99 )
target3.png
target4.png (32 KB | 94 )
target4.png

Do All things with Honour and Generosity: Regret Nothing, Envy None, Apologise Seldom and Bow your head to No One  - works for me Smiley
 
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Re: Was walking round costco yesterday
Reply #14 - Nov 20th, 2017 at 5:04pm
 
If I lay the model down on it's face it might even print. worth a shot Smiley

In case anyone is curious about how I design without drawing stuff, here's the openscad script for the target.
I designed it actual size - so to make a model small enough to print, I scaled it down to 6% actual size. 

Anything after 2 slashes '//'  is ignored by openscad - so used for commenting or disabling a line of script if necessary.

Edited:
$fn=100; // gives any round object 100 facets


module pipe(pl,pd,wt){ // pl=length of pipe, pd=diameter of pipe, wt =wall thickness - module creates pipes of any size

difference() {
cylinder(d=pd,h=pl);
//cylinder(d=pd-2*wt,h=pl); // commented out to make solid pipes
}// end diff
} // end mod

module tpiece() { // length 126, depth, 96 - module makes t pieces
translate([0,0,0])rotate([90,0,0]) pipe(126,40,3);
translate([0,-63,0])rotate([90,0,90]) pipe(96,40,3);
} // end mod

module topframe(){ // creates the top frame with virtual diana
translate([0,0,0]) pipe(1000,40,3);
translate([0,1000,0]) pipe(1000,40,3);
translate([0,0,0]) rotate([-90,0,0])pipe(1000,40,3);
translate([0,0,1000]) rotate([-90,0,0])pipe(1000,40,3);

translate([0,563,0]) rotate([0,90,0]) tpiece();

translate([0,500,500]) rotate([0,90,0]) cylinder(d=500,h=5);

//translate([0,0,0])
} // end mod

module base(){  // creates the base frame
rotate([0,-90,0]) {
translate([0,0,0]) pipe(1000,40,3);
translate([0,1000,0]) pipe(1000,40,3);
translate([0,0,0]) rotate([-90,0,0])pipe(1000,40,3);
translate([0,0,1000]) rotate([-90,0,0])pipe(1000,40,3);
} // end mod
} // end mod

module target(){ // final module that stitches everything together.
translate([0,0,1100]) topframe();

translate([0,500,0])pipe(1010,40,3);

translate([0,563,0]) rotate([0,-90,0]) tpiece();
base();

translate([-1000,0,0]) rotate([0,30,0]) pipe(2000,40,3);
translate([-1000,1000,0]) rotate([0,30,0]) pipe(2000,40,3);

translate([-1000,500,0]) rotate([0,42,0]) pipe(1500,40,3); // center prop

translate([0,0,1163]) rotate([90,0,90]) tpiece();
translate([0,1000,1163]) rotate([90,0,-90]) tpiece();

translate([0,0,20]) rotate([0,0,0]) pipe(1020,40,3);
translate([0,1000,20]) rotate([0,0,0]) pipe(1020,40,3);


}// end mod


scale([0.06,0.06,0.06])target(); // runs the 'target' module and scales it down to 6%


If you copy and paste that into openscad and press f5 - viola a 6% scaled target model will mysteriously appear Smiley

Now I did manage to print this, had a fair bit of spider webbing and burning those off is what warped a couple bits of the print whistle
But, damn it did print Smiley
And judging by how strong even this tiny frame is, the full size one should be plenty tough enough.
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« Last Edit: Nov 20th, 2017 at 6:07pm by Curious Aardvark »  

Do All things with Honour and Generosity: Regret Nothing, Envy None, Apologise Seldom and Bow your head to No One  - works for me Smiley
 
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