I'm gonna look at a couple of my local hardware stores today for these. They usually seem to have a lot of items like this that the big box stores don't carry. I like the saddle valve, but the needle does dull down and cant be easily replaced.
new carto puncher - under $1 to build
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I really hate using a saddle valve. It was a great and cheap idea, but it creates a pocket/dent on the carto, which makes it hard to insert into the tank (as mentioned in a previous post). I am hoping that this will fix that issue, but then again I don't have my hopes up. What would really make this better to me is the fact that it is small, and I assume that one will have a better idea of where they are drilling their hole without buying a dremel or drill and bits. I think it's really hard to find the exact point where I want my hole drilled on a carto when using the saddle valve. I am hoping this someone would report on that soon.
man, I really need to get my hands on one of those, everything else I've tried has either failed or been to expensive. I'm guessing they don't take paypal? 
man, I really need to get my hands on one of those, everything else I've tried has either failed or been to expensive. I'm guessing they don't take paypal?
not sure how far you are from grainger but they have the shaft collars in stock... 3 in a pack
Collar, Shaft, 3/8in, Pk3 - Shaft Collars - Couplings, Collars, and Adapters - 2X737 : Grainger Industrial Supply
Luv da concept! Bam, do you have a punched carto pic?
I see the challenge being the wing nut bolt with a pin point tip. Like Fernand said, the carto tube is tough. Considering the 'fine' point on the saddle strap 'needle' and the resultant dent, the new model would have to have a very fine hardened tip to prevent distortion.
Hope someone finds or develops a suitable bolt! I'd make some for PIF.
Now off to scour the web...
I see the challenge being the wing nut bolt with a pin point tip. Like Fernand said, the carto tube is tough. Considering the 'fine' point on the saddle strap 'needle' and the resultant dent, the new model would have to have a very fine hardened tip to prevent distortion.
Hope someone finds or develops a suitable bolt! I'd make some for PIF.
Now off to scour the web...
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Luv da concept! Bam, do you have a punched carto pic?
I see the challenge being the wing nut bolt with a pin point tip. Like Fernand said, the carto tube is tough. Considering the 'fine' point on the saddle strap 'needle' and the resultant dent, the new model would have to have a very fine hardened tip to prevent distortion.
Hope someone finds or develops a suitable bolt! I'd make some for PIF.
Now off to scour the web...
What are the chances the needle from the saddle strap would thread into the collar?
OK, took one apart. Alas, the saddle strap needle is too long to screw into the collar.
Luv da concept! Bam, do you have a punched carto pic?
I see the challenge being the wing nut bolt with a pin point tip. Like Fernand said, the carto tube is tough. Considering the 'fine' point on the saddle strap 'needle' and the resultant dent, the new model would have to have a very fine hardened tip to prevent distortion.
Hope someone finds or develops a suitable bolt! I'd make some for PIF.
Now off to scour the web...
If I know Iffy as well as I think I do, he'll have this dialed in 3 days from now, tops.
I wonder if you used this collar and using the hole in it, you rigged up a hardened pin on a spring to punch a hole in the carto? Just seems like stainless would punch easier than any type of drilling.
Too spare your bits I would use a drill instead of a dremel at low speed and maybe a little juice or VG for lube and your bits will probably last longer. You will still probably want a scribe or some such to help keep the bit from wandering but may work to punch the hole anyway...
let me jump all over that..lol
sad about seeing these at COV...
a little off topic, but is there a reason nobody uses the clear cartos in tanks? am i missing something obvious?
would be a neat effect i think
would be much simpler to drill a hole in a little plastic than (stainless?)steel.
a little off topic, but is there a reason nobody uses the clear cartos in tanks? am i missing something obvious?
would be a neat effect i think
would be much simpler to drill a hole in a little plastic than (stainless?)steel.
sad about seeing these at COV...
a little off topic, but is there a reason nobody uses the clear cartos in tanks? am i missing something obvious?
would be a neat effect i think
would be much simpler to drill a hole in a little plastic than (stainless?)steel.
They have a bigger diameter and won't fit.
sad about seeing these at COV...
a little off topic, but is there a reason nobody uses the clear cartos in tanks? am i missing something obvious?
would be a neat effect i think
would be much simpler to drill a hole in a little plastic than (stainless?)steel.
The carto has to support the tank so the thin plastic isn't so up for the job. I hear they crack, leak and break. The SS ones don't.
Nice mod BTW and sorry to see at COV too.
Does this dimple the carto like saddle valves do?
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I have fashioned something similar, but I am having quite a time getting the screw to stay sharp. Ideas??? I got nothing!
try heat treating the tip . with torch, red hot , then quench it in water, . i work at a steel company that produces chain. when we harden the parts for the chain , we use furnaces to heat the metal red hot then quench it in quench oil, to get the desired hardness in the metal... so by heating with torch , and quick cooling should replicate the process
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