Mrten Boi


Delft, Netherlands

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  • 31 Comments
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  • "To add: you /have/ to mould the noseclip to your face, which is something the person in the top picture has not done (the clip is mostly straight on both sides of the nose).Really, it's important to do a fit test after putting on the mask. Place two hands over the mask, exhale sharply and pay attention to escaping air. If air comes out next to your nose, remould the noseclip and try again."
    on: How to Prevent Your Glasses From Fogging Up When Wearing a Mask
  • "Um, if your glasses fog up when you exhale your mask is not set up properly, especially not with the respirator shown in the picture which has a exhale valve.If moist air can get out that easy, dust (and corona) can get in when you breathe in again."
    on: How to Prevent Your Glasses From Fogging Up When Wearing a Mask
  • "Process description and wood identification key here: https://woodidentification.net/about/"
    on: Rural Design Solutions: Where to Get Free Wood
  • "Hey, and a few posts back you mentioned your LED loupe, I recommend looking at a few different kinds of wood with it. With a very sharp knife shave something off the -perpendicular cut- end grain first, then have a look and compare, you'll see what I mean."
    on: Rural Design Solutions: Where to Get Free Wood
  • "If you really want to know what wood that is you need to look really up close with a microscope. Every kind of tree has a different recognizable way of how the lignin and -for lack of a better translation of the word- tubes are lined up."
    on: Rural Design Solutions: Where to Get Free Wood
  • "I swear I've seen something just like this on Aliexpress, led of course. search 'wall clock'."
    on: E-Blister Clock: "Simply Time, Nothing Else"
  • "Thank you for that reply! Is the resin you use particularly slow setting? I ask because Rain linked to a video from Diresta a couple of months ago who explicitly stated that vacuum was a lot harder to use than overpressure (too slow to build up perhaps? Could be equipment related). Live and learn!"
    on: 3D Printing Ergonomic Knobs with a Resin Core
  • "Aren't you making the bubbles "too small to see" instead of "squeezing them out"?"
    on: 3D Printing Ergonomic Knobs with a Resin Core
  • "What also seems to be important is that people used to drink fortified wine, not the 11% ABV we're used to now."
    on: Wine Glasses Have Gotten Seven Times Bigger in the Past 300 Years
  • "Well, the text seems to be the usual marketing drivel, but regarding the second logo; two people sitting close playing chess in the design language of the first logo.You are IMHO really being a bit overly sensitive here, have you perhaps just put down the Kama Sutra on your night stand?Look, I see what you're hinting at, but really, this isn't even close to Lisa Simpsons Olympic Endeavours."
    on: World Chess Championship Unveils Bizarrely NSFW Logo
  • "Laws on murder haven't stopped people murdering each other, doesn't mean there shouldn't be laws on murder.If there's going to be a problem with 3d printers making guns, there's going to be a lawmaker who is going to try to do something about it, like, in the past, copiers not copying money. This does not mean that the solution is going to be pretty though because as they say "bad cases make bad law"."
    on: How Digital Fabrication has Disrupted the Gun Control Argument: People Can Now Build Their Own AR-15s and Other Firearms
  • "I concur with Stephen, there exists filler material for paint that provides grip. Think fine plastic sawdust. I'd think sand is too hard, damages the paint too much if it comes loose.I've used the plastic filler dust on my (admittedly indoor) stairs and it works great."
    on: Design & Materials Problem: What are the Different Ways to Make Outdoor Stairs Non-Slippery?
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