Small vertical wind turbine
by cyborg527, published
Description
KIT1 (OUTDATED)
midassembly x8
findimensions x32
bottombrace x 2
2 perm magnets
1 6mm Dia, 3ft smooth rod
1 Mounting board
Kit2 (OUTDATED)
midassemblyv2
findimensionsv2
bottombracev2
2 perm magnets
1 6mm Dia, 3ft smooth rod
1 Mounting board
Kit3
midassemblyv3 x 8
findimensionsv3 x32
bottombracev2 x2
2 perm magnets
1 6mm Dia, 3ft smooth rod
1 Mounting board
COST
midasseblyv2 5.294in3*20.15633g =106.70763g
=.23525 pounds * $12/lb = $2.823
finv2 .575in3*20.15633g= 11.589g
11.589g*0.00220462262=.025549% of $12
=$.31
assembled mid=$4.04
153 grams per section
1224g per turbine = 2.6lb
$32 for wind turbine printed parts.
or half of a 5lb spool
Recent Comments
view allOr alternatively, use ball bearings - with one caveat. Ordinary sealed ball bearings have quite a lot of drag due to the rubber seals. It's best to use open (non sealed) bearings, although most bearings sold these days are sealed.
A number of years ago a modelling colleague told me a trick - take a sealed bearing and remove the metal shields and rubber seals, then boil in kerosene to remove the grease. The result is a very low friction ball bearing. The only real issue is that you have to keep the dust out, which you could achieve with a labyrinth seal.
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I do not yet have a reprap assembled (I am still waiting on a couple part to work) So I do not yet know if this model is going to work or not. But I encourage people to print it out and give me feedback on what needs changed.
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Or alternatively, use ball bearings - with one caveat. Ordinary sealed ball bearings have quite a lot of drag due to the rubber seals. It's best to use open (non sealed) bearings, although most bearings sold these days are sealed.
A number of years ago a modelling colleague told me a trick - take a sealed bearing and remove the metal shields and rubber seals, then boil in kerosene to remove the grease. The result is a very low friction ball bearing. The only real issue is that you have to keep the dust out, which you could achieve with a labyrinth seal.
To allow your thing to spin more freely, I suggest opening the bore in the center so that there is a bearing surface only at the ends. In this way, the thru bore does not need to be perfectly straight and there is a generous clearance in the center. Only the bore diameters at the ends will important. Hoping to help
thanks for that, Ill try fixing it up, I have a couple more things to add to it as well.

nice work, how much power can this vertical turbine generate please ?