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Where can you buy any of this stuff from cheaply, what I have been able to find the material is as much as a new helmet and visor, in some cases the plastic to cut out would be more expensive than a new cheap visor

What is visor's (paricularily with some impact capability) made of ? Polycarbonate, plastic, Acrylic ? how does thickness affect bending? And how easy is it to cut ? I have access to a cnc router, but what bits, speed, rpm etc. It would be nice to cheaply and regularly replace just the...

Notice the lack of fat people - work was clearly hard and physical

very true, even if it is just one in a thousand, there a a lot of punters on ebay. I knew someone who used to purposefully use bad spelling, thus attracting those who can't spell and would find little competition to her over-priced stuff, she did well.

is it only 2007 , plenty of time to avoid climate catastrophe, wee Greta Thunberg probably hasn't been born yet!

I'm really curious as to just how flexible and light the top brand ones are, very difficult to make any comparisons but how would you compare them to , for instance, the flxible hose that comes with the likes of a Henty? the one I'm intending to use weighs in at 230g per meter - its a bit of an...

The concern over wood-burning stoves is not one of climate change, burning wood is not directly a contributor of climate change as it is not a fossil fuel, the carbon released in burning wood has only been borrowed from the atmosphere in the last hundred years or so. The concern about pollution...

I think the opening few lines sums it up, clearly those high up in the echelons of medicine and doctoring are very very concerned about what we are doing to our atmosphere. "Climate change is the biggest threat to global public health in the 21st century. From the increase in death and illness...

this bunch of, how did you put it "green tree hugging loonies" from the lancet seem to disagree with you. https://www.thelancet.com/journals/lanres/article/PIIS2213-2600(23)00056-5/fulltext

@Sideways How do your respirators go together? Do you don it as all one piece, or do you for instance put the belt and helmet on separatly then connect them with the hose. thanks for your input on the hose size, it is a little smaller than the one I am goint to use (ID 37mm) I'm wondering if...

would not of thought that to be a major concern of someone choosing to grow a beard.

In a recent garage clearance we come across quite a lot of these in different sizes, some sort of rivet of fastening, maybe ? may be some sort of crimp to tidy up the ends of frayed cables ?

@Sideways the flexible pipe that runs from your belt to the helmet, what size is it ? length, internal dia etc, As to the build - a bit further forward, have completed the belt unit (apart from the battery) and it works well. I have tried to do some air flow comparisons with the powercap...

I have found these very good, or at least a good fit for me. Seem to be quite durable as well and not stupidly overpriced like many of these things are https://www.gvs.com/en/catalog/elipse-p3-respirator

this is exactly what I thought, however I have been told and confirmed on internet that the low voltage cut off is always on the tool side, why this is, is a mystery to me. However, I found the followig video, and as it happens this is the exact make of battery that I am goung to be using...

Anyone know anything about low voltage cut offs for li-ion batteries. Apparently you need to build one of these circuits into any tool that conects to a li-ion battery because if the voltage drops too low, hen they can't be recharged! its an 18v battery - so anyone got any pointers ?

Yes, I do like the look of those, and maybe if my build is succesful that may be mark2. But I have a long way to go yet. Filter size has to be very important on a powered respirator. We breath at 6-8 litres per minute, these powered respirators are pumping the best part of 200 litres per...

Problem is with the filters is; are they what they say they are, and as far as I know there is no real way of telling. Take these for instance 4-pcs HEPA Filter for SHARK WV200 WV200UK WV251 Cordless Handheld Vacuum Cleaner | eBay £2.25 each, they could be as good, even made in the same factory...

But HEPA has its own european standards, and as far as I can tell they are pretty much the same as P3, It is just a thought for more sensibly priced filters in the future. Out of interest, what is the dimensions of that large filter in your Versiflo, it may give me an idea of the surface area...

Our planer thickness has a habit of doing this too, it is easily cured (as others have said) with a good clean and polish to the bed - I even give it a spray with silicone, (i know, tut tut tut)