Flexible hosepipe style air-ducts... using Masking tape! September 01, 2017 08:17AM |
Registered: 8 years ago Posts: 776 |
Re: Flexible hosepipe style air-ducts... using Masking tape! September 01, 2017 05:37PM |
Registered: 9 years ago Posts: 978 |
Re: Flexible hosepipe style air-ducts... using Masking tape! September 01, 2017 08:19PM |
Registered: 8 years ago Posts: 776 |
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frankvdh
Ummm... how do you stop the masking tape tube from collapsing and sticking together into a ribbon? Do you do two layers, with the sticky sides facing each other?
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Since you're concerned about weight, I assume that one end will connect to (I guess) the hot-end, and move around. I'd be worried that the tube would crease, fatigue, and eventually tear. No big deal to repair, but you maybe lose a print and get a hot-end jam along the way.
Re: Flexible hosepipe style air-ducts... using Masking tape! September 02, 2017 03:30AM |
Registered: 8 years ago Posts: 5,232 |
Re: Flexible hosepipe style air-ducts... using Masking tape! September 02, 2017 05:25AM |
Registered: 8 years ago Posts: 776 |
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o_lampe
Why not use shrinktube and shrink it on top of the off_the_shelf flexible hosepipe. Then remove the inner hosepipe and voilá: crinkled rubber hosepipe.
Removing the inner hosepipe should be easy when it's slotted lengthwise.
Re: Flexible hosepipe style air-ducts... using Masking tape! September 03, 2017 03:00AM |
Registered: 8 years ago Posts: 5,232 |
Re: Flexible hosepipe style air-ducts... using Masking tape! September 03, 2017 06:07AM |
Registered: 8 years ago Posts: 776 |
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o_lampe
You can get shrinktube in any size, but it's not rubber. Food industry uses shrinking foil ( and tubes ). Its more flexible too.
Re: Flexible hosepipe style air-ducts... using Masking tape! September 04, 2017 01:59AM |
Registered: 8 years ago Posts: 5,232 |
Re: Flexible hosepipe style air-ducts... using Masking tape! September 04, 2017 07:41AM |
Registered: 11 years ago Posts: 5,780 |
Re: Flexible hosepipe style air-ducts... using Masking tape! September 06, 2017 04:52AM |
Registered: 10 years ago Posts: 150 |
Re: Flexible hosepipe style air-ducts... using Masking tape! September 07, 2017 08:23AM |
Registered: 8 years ago Posts: 776 |
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M_Xeno
Use a cheap corrugated tube from an aquarium cleaner :
It works very well with a 60x15mm blower. You need to print an adapter. I use this sort of tube since 2 years on my Zatsit delta prototype:
www.zatsit.fr
Re: Flexible hosepipe style air-ducts... using Masking tape! September 07, 2017 12:40PM |
Registered: 6 years ago Posts: 1,007 |
Re: Flexible hosepipe style air-ducts... using Masking tape! September 07, 2017 06:58PM |
Registered: 8 years ago Posts: 776 |
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MKSA
Masking tape has the big advantage to capture any insect avoiding it to clog heatsink fins etc....
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Not to mention the fun to make it. Cling film and scotch tape, hard to beat to test your nervous system.
Re: Flexible hosepipe style air-ducts... using Masking tape! September 11, 2017 01:09AM |
Registered: 8 years ago Posts: 776 |
Re: Flexible hosepipe style air-ducts... using Masking tape! September 11, 2017 06:24AM |
Registered: 11 years ago Posts: 5,780 |
Re: Flexible hosepipe style air-ducts... using Masking tape! September 11, 2017 11:36AM |
Registered: 6 years ago Posts: 1,007 |
Re: Flexible hosepipe style air-ducts... using Masking tape! September 11, 2017 11:41AM |
Registered: 8 years ago Posts: 776 |
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MKSA
Always look at the big picture. Done. OK, now, what is the purpose again ? Usually it is one 30mm fan for the hot end, one blower fan for the part. SO ?
Re: Flexible hosepipe style air-ducts... using Masking tape! September 11, 2017 01:09PM |
Registered: 6 years ago Posts: 1,007 |
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lkcl
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MKSA
Always look at the big picture. Done. OK, now, what is the purpose again ? Usually it is one 30mm fan for the hot end, one blower fan for the part. SO ?
one blower is nowhere near enough to deal with 250 to 300mm / sec or above print speeds. i'm getting perfect prints at 50mm/sec even with 50 to 55 degree overhangs. but with a square 20x20x20mm test cube running at 300mm / sec the edges curl up by at least 2 or 3 layers (0.4 to 0.6mm).
i need a *lot* of airflow, basically. one blower is nowhere near enough.
l.
Re: Flexible hosepipe style air-ducts... using Masking tape! September 11, 2017 03:44PM |
Registered: 11 years ago Posts: 5,780 |
Re: Flexible hosepipe style air-ducts... using Masking tape! September 11, 2017 08:39PM |
Registered: 8 years ago Posts: 776 |
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MKSA
Where can we see it printing at these speeds ? 0 to 300 mm/s on a 20mm long race track, gee ! (in fact more than 2 )
Re: Flexible hosepipe style air-ducts... using Masking tape! September 11, 2017 09:01PM |
Registered: 8 years ago Posts: 776 |
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the_digital_dentist
Either it's a work of art, or it will scare the crap out of children, or both.
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Oh yeah, that's the other thing. Axial fans can't blow air through a tube. You need a radial fan, aka a blower.
Re: Flexible hosepipe style air-ducts... using Masking tape! September 12, 2017 02:20AM |
Registered: 6 years ago Posts: 1,007 |
Re: Flexible hosepipe style air-ducts... using Masking tape! September 12, 2017 03:08AM |
Registered: 8 years ago Posts: 776 |
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MKSA
Looks like you have far more problems than just the part cooling fan !
And definitely the speed is NOT 300mm/s. It may look like it but that is because of the noise and the shaking , typical of these playful crappy chinese bearings that must grind the rods !
Re: Flexible hosepipe style air-ducts... using Masking tape! September 12, 2017 05:01AM |
Registered: 6 years ago Posts: 1,007 |
Re: Flexible hosepipe style air-ducts... using Masking tape! September 12, 2017 05:38AM |
Registered: 8 years ago Posts: 776 |
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MKSA
How do you measure the speed to be so sure ? Is it average, peak etc ??? PLA is the easiest to print.
What about PETG ? I bet at this speed and with all these fans, the required T° and filament output won't be achieved.
Re: Flexible hosepipe style air-ducts... using Masking tape! September 12, 2017 03:00PM |
Registered: 6 years ago Posts: 1,007 |
Re: Flexible hosepipe style air-ducts... using Masking tape! September 12, 2017 11:06PM |
Registered: 8 years ago Posts: 776 |
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MKSA
OK and how does these test cubes look at 60mm/s, 120mm/s and 180mm/s ?