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updated readme to include updated BOM

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laura 2026-06-19 10:50:06 +00:00
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@ -41,11 +41,17 @@ Price per order/number of units|price per unit|
* 10,79€/5 = 2.16€ * 10,79€/5 = 2.16€
* 9,67€/5 = 1.94€ * 9,67€/5 = 1.94€
* 3,11€/5 = 0.63€ * 3,11€/5 = 0.63€
* 32,99€/5 = 6.60€ * 22,99€/5 = 4.60€
=11.32€/unit = 13.12USD < 14USD (as of writing this) =9.32€/unit = 10.68USD < 14USD (as of writing this)
and youd be left with with 60 dowel pins ("worth" 5.80€) and 875g of PETG (worth 28.86€). This is PPU particularly high because of the expensive filament used in the calculation. and youd be left with with 60 dowel pins ("worth" 5.80€) and 875g of PETG (worth 28.86€). This is PPU particularly high because of the expensive filament used in the calculation.
I think a fair cost assesment is somewhere inbetween the two, since most people will have some filament, and so the 6.60€ per valve of filament are a bit over the top. I think the average maker would probably spend around 5-6€ per valve. I think a fair cost assesment is somewhere inbetween the two, since most people will have some filament, and so the 6.60€ of filament per valve of filament are a bit over the top.
* 10,79€/5 = 2.16€
* 9,67€/5 = 1.94€
* 3,11€/5 = 0.63€
* 22,99€*25*5/1000 = 0.58€
=5.30€/unit = 6.08USD < 14USD (as of writing this)
a
## Performance Assesment/Concerns/Room for improvement ## Performance Assesment/Concerns/Room for improvement
I have not had the opportunity to test maximum holding and closing pressure, nor how many close/open cycles it can handle. I hope to get around to running those tests in the final week before the submission deadline. [The only test I've managed so far](https://chaos.social/@la/116727325081926518) was me blowing into the tube with the other end in a glass of water, to see if it closes and seals agains my lung pressure. I have not had the opportunity to test maximum holding and closing pressure, nor how many close/open cycles it can handle. I hope to get around to running those tests in the final week before the submission deadline. [The only test I've managed so far](https://chaos.social/@la/116727325081926518) was me blowing into the tube with the other end in a glass of water, to see if it closes and seals agains my lung pressure.