iban
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Posts: 111
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Post by iban on Feb 15, 2021 16:10:09 GMT -5
I've got the big and small hose for the Starmix (both anti-static) and they plug together to give me 10m - still good suction at that distance. What´s big and small in mm? 35 and 27? And WHY anti-static? All the info I´ve found say is to avoid getting zapped or getting an electrical discharge... Honestly I´ve never had any problem with that... I thought in anti-static hoses suction was better or something like that... Yeah... It is becoming more and more difficult to focus in what you REALLY need with all that marketing and consumerising telling you what need
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simon
Junior Member
Posts: 83
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Post by simon on Feb 15, 2021 16:43:45 GMT -5
iban just check the diameter of the hose, I bought the 35mm diameter as an extra, and have never used it - I reckon the next size up is the more useful catch all diameter particularly if you're a chippy, as rough sawdust could easily clog up the 35mm hose. Also try and get a deal on the Hepa filter at point of purchase, when I bought mine here in the UK I got the cost down to less than half list price. 35mm is what comes as standard in the L (non antistatic) and M, H (antistatic) I can find 27mm but not thicker for ipulses. Do you have at hand the reference number of a thicker diameter hose? Does anti static makes any difference in the real world? Apologies I got my diameters confused there. When I first researched the Starmix, I was leaving behind a long history of Festool extractors, and was used to the idea of 27mm hoses. So when I bought the L 1635, I bought an additional 27mm hose - but have only used it once, and am happy with the supplied 35mm for all purposes. I only use anti static hoses as most of my work involves sanding or grinding/crack chasing, which often creates large volumes of fine dust. Here's a succinct explanation supplied by Bill in Seattle - "The biggest difference is that when you are using a tool that cuts or abrades material that can produce static producing voltages that YOU are not the path to ground and you don't have to get the holy junk zapped out of you as you try to continue making the cut. it is like someone scuffing their feet on carpet and then touching you, festools do an excellent job at preventing it as long as your tool and dust system maintain a antistatic path to ground. any breaks and it will look for the path of least resistance, like you."
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Post by fatandre on Feb 15, 2021 17:53:43 GMT -5
Can an static hose damage the vacuum?
I was running such a hose when concrete grinding and I could see the electrical flashes where the hose connected to the vacuum. Went and bought a antitstatic hose 2 days later
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Post by kraftt on Feb 15, 2021 19:48:55 GMT -5
Of the euro vacs you’re discussing here certain plastic parts of their bodies are formulated with a conductive / dissipative matrix, connecting internally to a star ground that connects to the ground prong on cord plug. If you saw any arcing from hose static charge to vac body it would have been earthing. If the wall receptacle wasn’t connected to a service ground wire you wouldn’t have experienced that phenomenon, at least not visually. But a charge is always going to take the shortest path to earth so going all anti-stat should lower the build up of potential in the hose. The vacs are designed to 'disipate' the charge, 'sort of' like a lightning rod, I don't think you could damage the vac with built up static if it's body is an anti-stat design.
I think the guys who vacuum up chimney ash need high performing certified anti-stat vacs or they (the vacs that is) can explode.
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Post by kraftt on Feb 15, 2021 20:54:42 GMT -5
As an aside, that dissipative matrix mixed into the plastic is interesting. When experimenting with bridging the conductive disconnect from placing a home brew dust collector between the vac and hose I was using aluminum tape on the pipe and found that not all the area around the inlet mouth of the vac could pick up the charge. I had to hunt & stab with a probe until I found a small area at 12 o’clock to position the thin strip of aluminum tape to make good connection. (perhaps it doesn’t matter if you get a weak or strong reading because the charge finds it’s way though the circumference of so many weak contact points in an ‘anti-stat’ hose end, but I couldn’t get any reading at all except in one small spot - just something to be aware of if your collector or intermediary hose(s) is/are not anti-static).
The simpler solution was to replace the black oxide screw, that secures the inlet dust plug tether, with a non-coated screw (the screw burrows deep into plastic) and alligator clip it with wire to grounding wrist strap around the anti stat hose at the inlet of the dust collector.
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simon
Junior Member
Posts: 83
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Post by simon on Feb 16, 2021 7:50:43 GMT -5
I've got the big and small hose for the Starmix (both anti-static) and they plug together to give me 10m - still good suction at that distance. What´s big and small in mm? 35 and 27? And WHY anti-static? All the info I´ve found say is to avoid getting zapped or getting an electrical discharge... Honestly I´ve never had any problem with that... I thought in anti-static hoses suction was better or something like that... Yeah... It is becoming more and more difficult to focus in what you REALLY need with all that marketing and consumerising telling you what need Classing is relevant when it comes to what filters are being used, and where you work (depending on health and safety building regs in your country). I like the advice I got from someone in the industry - get something as powerful as you can afford in L class incorporating M class filter bags and H class filters - this was tailor made for my requirements and made common sense to me. The other criteria I value are the robustness of the machine overall, and how well it manages to fill the bags: so far my Starmix is doing the business. :-) I agree there is a lot of confusion around this topic, and it's often associated with marketing speak aka doubletalk - a couple of the things that bug me are the variety of units used by different manufacturers for volume flow and suction, making it more difficult to compare machines (including the issue of measuring at the motor head rather than the end of the hose, I don't see other manufacturers following Starmix's example and giving both); it'd also be great if the cost of Hepa filters was reduced.
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Post by aas on Feb 16, 2021 10:54:32 GMT -5
I agree to a point... but if you ever find your self in a situation that you 'need' an H class certified vac, seen as it costs little extra to buy in the first place - easier to just get one good vac... if you have more than one vac of course that doesn't really apply.
I have 27mm and 35mm for the Starmix, so not really big and small, more medium and small.
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iban
Full Member
Posts: 111
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Post by iban on Feb 16, 2021 18:35:39 GMT -5
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simon
Junior Member
Posts: 83
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Post by simon on Feb 16, 2021 20:05:22 GMT -5
The connection is the same for the Starmix, Metabo and Mafell extractors - a bayonet that's rotated to secure it.
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simon
Junior Member
Posts: 83
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Post by simon on Feb 16, 2021 20:11:44 GMT -5
I agree to a point... but if you ever find your self in a situation that you 'need' an H class certified vac, seen as it costs little extra to buy in the first place - easier to just get one good vac... if you have more than one vac of course that doesn't really apply. I have 27mm and 35mm for the Starmix, so not really big and small, more medium and small. If you want variable suction then the M and H class models in Starmix only give 2 speeds - I wanted more control; didn't want a warning sound; and don't work on building sites that require M or H - you choose what works for you.
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Post by kraftt on Feb 16, 2021 21:13:23 GMT -5
I think adjustable cuffs get overlooked for their ease of adjusting tool suction without having to go over to vac while providing high flow at the same time for maintaining cyclone / collector performance.
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Post by aas on Feb 17, 2021 2:56:44 GMT -5
I agree to a point... but if you ever find your self in a situation that you 'need' an H class certified vac, seen as it costs little extra to buy in the first place - easier to just get one good vac... if you have more than one vac of course that doesn't really apply. I have 27mm and 35mm for the Starmix, so not really big and small, more medium and small. If you want variable suction then the M and H class models in Starmix only give 2 speeds - I wanted more control; didn't want a warning sound; and don't work on building sites that require M or H - you choose what works for you. My H has variable speed.
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Post by aas on Feb 17, 2021 2:57:43 GMT -5
I have this one :
35mm hose, 45 external diameter, antistatic
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simon
Junior Member
Posts: 83
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Post by simon on Feb 17, 2021 18:31:39 GMT -5
If you want variable suction then the M and H class models in Starmix only give 2 speeds - I wanted more control; didn't want a warning sound; and don't work on building sites that require M or H - you choose what works for you. My H has variable speed. "...the M and H class models in Starmix only give 2 speeds." - for things like crack chasing or grinding concrete I have the Starmix on it's highest setting, but for sanding drywall compound/preparing timber for painting/stripping paint etc - I prefer more options than the 2 speed level gives - whatever works for you.
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Post by aas on Feb 18, 2021 15:37:49 GMT -5
"...the M and H class models in Starmix only give 2 speeds." - for things like crack chasing or grinding concrete I have the Starmix on it's highest setting, but for sanding drywall compound/preparing timber for painting/stripping paint etc - I prefer more options than the 2 speed level gives - whatever works for you. My H has variable speed... must be faulty
As an asides, Starmix now listing the new Batrix models in L and M - 3 speed eco controller.
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