Anybody tried.....

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Anybody tried.....

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MarkMK	MarkMK posted 10 Years Ago HOT Topic Details
Group: Forum Members Posts: 338, Visits: 2K	.....an ultrasonic leak detector?
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Hanaldo	Hanaldo posted 10 Years Ago HOT Post Details
Group: Forum Members Posts: 2.5K, Visits: 28K	Yep. Build your own, they are super simple. No need to spend $900 on one when you can build one for $30. They aren't miracle workers though, you won't be able to find every leak. It's more like 50/50.
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MarkMK	MarkMK posted 10 Years Ago HOT Post Details
Group: Forum Members Posts: 338, Visits: 2K	What's needed for a do it yourself job Hanaldo? Well worth a go if the required components are cheap enough. A quick scan around the interweb seemed to show units advertised as suitable for finding vacuum leaks for around $350 (VPE was a popular search result). Although my bagging up is getting more consistent of late, just wondered if the off-the shelf items are effective, as the investment might be worth it in time saved alone? Cheers
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Fasta	Fasta posted 10 Years Ago HOT Post Details
Group: Forum Members Posts: 468, Visits: 3.5K	I have been using the Accutrack VPE for about 10 years now, faultless and finds leaks easy. http://superiorsignal.com/products/ultrasonic-instruments/accutrak-vpe-ultrasonic-leak-detector Fastacraft Facebook page
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Hanaldo	Hanaldo posted 10 Years Ago HOT Post Details
Group: Forum Members Posts: 2.5K, Visits: 28K	My opinion is that they aren't worth the investment. They don't do the job consistently enough to pay for themselves, more often than not you spend more time going crazy going over and over the part with the leak detector, only to give the sealant tape one last squeeze in desperation and it seals up perfectly. Will try to find the schematic I used to wire mine up.
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Warren (Staff)	Warren (Staff) posted 10 Years Ago HOT Post Details
Group: Administrators Posts: 2.5K, Visits: 8.5K	In our workshop we have a rule of spending no more than 10 minutes looking for a leak before rebagging. Chances are if you can't find it after 10 minutes, you may never find it. It is often quicker and easier to start afresh taking a bit more extra care so you get that sealed bag you want. Warren Penalver Easy Composites / Carbon Mods - Technical Support Assistant
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Hanaldo	Hanaldo posted 10 Years Ago HOT Post Details
Group: Forum Members Posts: 2.5K, Visits: 28K	Have to say that has been the best solution for me to ^ Unfortunately it is something that you really only accept once you have a lot of material stock. When you've got a 100m roll of vac bag, it's not hard to throw away 2 metres and start again. When you've only got 5 or 10 metres, you're counting every cm. And that fear of throwing away 2 metres of precious bag and then spending the time rebagging, only to find your new bag is leaking to... My favourite materials in my shop are my 3 big rolls of vac bag and my boxes of bagging tape!
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Jacopo Carbonio	Jacopo Carbonio posted 10 Years Ago HOT Post Details
Group: Forum Members Posts: 43, Visits: 109	How can you build a leak detector?
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Hanaldo	Hanaldo posted 10 Years Ago HOT Post Details
Group: Forum Members Posts: 2.5K, Visits: 28K	It's a very simple circuit: http://chemelec.com/Projects/Ultrasonic-2/Ultrasonic-2a.png Essentially it just uses a transducer as a very small microphone to pick up very high pitch frequencies and heterodyne them down to a pitch where your ears can pick them up. Gary (the designer of that schematic) is very helpful and will send you a printed circuit board for the cost of postage. He provides a full list of the components that you need to complete it, and then it's as simple as plugging them into their places and soldering it together. Works a treat, did the same job as the Airtech LEQ70 I've used.
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Jacopo Carbonio	Jacopo Carbonio posted 10 Years Ago HOT Post Details
Group: Forum Members Posts: 43, Visits: 109	Wooo not so simple for me.. maybe I can ask my friends..I'm not so able with electronic parts
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