I'm curious how small a force is needed to overcome the initial friction and get it moving. I'm working on a project where I'd want somewhere around 1:1000 gear ratio, basically three of those fans chained together - I'm worried it may be impossible.
@tomfelker - it takes only a very small amount of initial force to start the movement. The bigger issue to deal with when moving parts are printed in position is the amount of space needed around each part to keep them from fusing. The more moving parts you have, the more those tolerances seem to be magnified. If you need a large number of gears, it might be better to design them with very tight tolerances and assemble them after printing.
How much did it cost you to get the rapid prototyping service in this particular piece. I am thinking of getting mine service. Just a ball park if you dont mind
@hfurjiskkr5 - i had thought about using diagonal gear teeth, and that might work better if the parts were printed separately. it's worth checking out - thanks!
@adrianparia the parts are neither cast or carved. The 3D printer uses the selective laser sintering (SLS) process. The polyamide nylon powder is laid out in .1mm layers and fused by a laser one layer at a time. When completed, the full model gets lifted out of the powder and the excess powder then gets cleaned off. There are some good SLS Printing videos on YouTube showing how his works. They might explain it better than I can.
correct me if i'm wrong. this thing was cut from a single piece of material. and at the end every part was in the right place. no assabmle process. how the hell is that possible?
@adrianparia and i think i'm wrong. i've done i little research and i understand i think i understand now how the printer works. every piece is casted in the position. is that correct?
So i can see the future... Today we can get just about anything SOFTWARE based for free from Pirating or other ways but we can't get any physical things free. In the future everyone will have these "3D Printers" as frequent as we have computers. Sites like amazon or eBay might sell PS3 (Or any other physical objects) 3D models for us to buy then print out on our own. Piracy will over come that and we will be able to download a 3d Model file for a physical object for free. #ThefutureofPiracy >:)
@SuperAaaaa123456 -I'm still waiting to get my latest print back, but if it's good, I'll release it for sale and the price should be around $75 through Shapeways.
You should make it so that one full rotation of the crank makes the fan spin like 500 times and when you stop cranking the fan still spins instead of stopping right away. Then I'd buy that lol.
@TheSkiesDye lol. That thing has 8 blades. And it spins at almost 3600 rpm when the crank is spun at 3 hz(cycles per second, 1 hz = 60 rpm). It can generate a very powerful wind.
@averyaccordian. I've made a couple of minor tweaks to the model and should get the new print back this week. Hopefully then i'll make it available for sale.
@bukk530 The space between moving parts depends on the design of each part. I needed more space between the grip and shaft. Also curved inside of the grip so the top and bottom edges are the only edges that are really close to the shaft it's spinning around. Shapeways recos .5mm to .6mm between parts. Used less in some areas. Designed the gears so they work with such loose tolerances. WSF material is pretty strong; it's not perfectly smooth. They offer polished WSF for a very smooth surface.
@devta - Thanks! Since it uses the selective laser sintered (SLS) process, the polyamide nylon powder is laid out in layers .1mm at a time and fused by the laser. There is no support material because the powder around the fused material acts as a support. The full model gets lifted out of the powder and the excess powder then gets cleaned off. The model is designed with a minimal amount of space between each part so it doesn't get fused together. Hope that makes sense.
I ave being searching for this shape last knight I was visualising a lift generator and you have in your hand the almost similar shap missing the elicoeidal eg shape inner space !!
Hey! That's pretty neat! Heck, add a motor onto that thing, and you've got yourself a fan!
legacysage 1 week ago
Cool!
MrModenaitFilms 2 weeks ago
I'm curious how small a force is needed to overcome the initial friction and get it moving. I'm working on a project where I'd want somewhere around 1:1000 gear ratio, basically three of those fans chained together - I'm worried it may be impossible.
tomfelker 3 weeks ago
@tomfelker - it takes only a very small amount of initial force to start the movement. The bigger issue to deal with when moving parts are printed in position is the amount of space needed around each part to keep them from fusing. The more moving parts you have, the more those tolerances seem to be magnified. If you need a large number of gears, it might be better to design them with very tight tolerances and assemble them after printing.
vertigopolka 3 weeks ago
When you say printed all parts in position, you mean its printed with all the parts in place without the need of assembly?! That's amazing!!
sufu5a 4 weeks ago
Vertigo polka, nice job, can I hire you to design a part for me, if so email me at gilshoshan3@gmail.com
GSndb 1 month ago
That's awesome
OrganicSpaceExplorer 1 month ago
Just imagine with they could incorporate some grafith or metalic based tint, were able to print eletronic systems *_*
0adireita 1 month ago
@0adireita its being done with titanium powder
andrewc2768 3 days ago
Hi,
How much did it cost you to get the rapid prototyping service in this particular piece. I am thinking of getting mine service. Just a ball park if you dont mind
gianboy2001 1 month ago
@gianboy2001 - it's roughly 85 dollars based on about 60 cm3 of material.
vertigopolka 1 month ago
@vertigopolka Wait, this cost you $85 just to make this?
TheBunniezRock 1 month ago
@TheBunniezRock - Yes, $85. It's printed by Shapeways, and they charge per cubic centimeter of printed material.
vertigopolka 1 month ago
@vertigopolka is that 60cm^3 in total size, or by material used?
NEMESIS9O9 2 weeks ago
@NEMESIS9O9 - 60 cubic cm is the amount of material used.
vertigopolka 2 weeks ago
That looks great. If I my recommend, use diagonal gear teeth to eliminate the play
hfurjiskkr5 1 month ago
@hfurjiskkr5 - i had thought about using diagonal gear teeth, and that might work better if the parts were printed separately. it's worth checking out - thanks!
vertigopolka 1 month ago
so is that a hard plastic?
dsnfldgfds 1 month ago
@dsnfldgfds - yes, it's made of a pretty strong nylon, and slightly flexible the thinner it's printed.
vertigopolka 1 month ago
how cool is that holy shiat
managarm1349 1 month ago
@adrianparia the parts are neither cast or carved. The 3D printer uses the selective laser sintering (SLS) process. The polyamide nylon powder is laid out in .1mm layers and fused by a laser one layer at a time. When completed, the full model gets lifted out of the powder and the excess powder then gets cleaned off. There are some good SLS Printing videos on YouTube showing how his works. They might explain it better than I can.
vertigopolka 1 month ago
correct me if i'm wrong. this thing was cut from a single piece of material. and at the end every part was in the right place. no assabmle process. how the hell is that possible?
adrianparia 1 month ago
@adrianparia and i think i'm wrong. i've done i little research and i understand i think i understand now how the printer works. every piece is casted in the position. is that correct?
adrianparia 1 month ago
im printing plastic guns
ZIEMAAAAA 1 month ago
So i can see the future... Today we can get just about anything SOFTWARE based for free from Pirating or other ways but we can't get any physical things free. In the future everyone will have these "3D Printers" as frequent as we have computers. Sites like amazon or eBay might sell PS3 (Or any other physical objects) 3D models for us to buy then print out on our own. Piracy will over come that and we will be able to download a 3d Model file for a physical object for free. #ThefutureofPiracy >:)
SC4newbie100 2 months ago 2
Amazing stuff!
pcs800 2 months ago
Neat!
cwmasta1 2 months ago
the fact that there was no assembly blows my mind.
xAMPUTECHTx 2 months ago
what type of 3D printer are you using
WatchmenDrManhattan 3 months ago
its uses the cycle gear principle
mritunjaymusale 3 months ago
@SuperAaaaa123456 -I'm still waiting to get my latest print back, but if it's good, I'll release it for sale and the price should be around $75 through Shapeways.
vertigopolka 3 months ago
W...T....F! i think im gunna faint... vnvbfjgyv
bennybobz9 4 months ago
You should make it so that one full rotation of the crank makes the fan spin like 500 times and when you stop cranking the fan still spins instead of stopping right away. Then I'd buy that lol.
TheSkiesDye 4 months ago
@TheSkiesDye lol. That thing has 8 blades. And it spins at almost 3600 rpm when the crank is spun at 3 hz(cycles per second, 1 hz = 60 rpm). It can generate a very powerful wind.
Dark0Lord7 3 months ago
@TheSkiesDye And with a 1/500 gear ratio it's very hard for a human being to crank it(and u might break the crank trying it)
Dark0Lord7 3 months ago
Very cool item ya have there friend!
interplexer 4 months ago
Cool ! lol
manfromregina 4 months ago
@averyaccordian. I've made a couple of minor tweaks to the model and should get the new print back this week. Hopefully then i'll make it available for sale.
vertigopolka 4 months ago
This seems more like a PRINTED video.... maybe you should adjust the title so it doesn't say PRINTING.... still cool though
Atomhaz 5 months ago
@deaftodd. It's not really delicate; it's pretty strong. There's a little bit too much play in it though. Hope to have a new model up soon.
vertigopolka 5 months ago
@vertigopolka would u sell it?
averyaccordion 4 months ago
Seems delicate, is it like handling eggshells?
deaftodd 5 months ago
Wow, really nice done!
However I'm working on a similar project so could you give me some "unofficial" information about the model, does it feel smooth and strong enough?
You said you have to leave a space between moving part, what's the distance you used?
Thank you in advance!!!
bukk530 5 months ago
@bukk530 The space between moving parts depends on the design of each part. I needed more space between the grip and shaft. Also curved inside of the grip so the top and bottom edges are the only edges that are really close to the shaft it's spinning around. Shapeways recos .5mm to .6mm between parts. Used less in some areas. Designed the gears so they work with such loose tolerances. WSF material is pretty strong; it's not perfectly smooth. They offer polished WSF for a very smooth surface.
vertigopolka 5 months ago
@vertigopolka how much cost?
SuperAaaaa123456 3 months ago
@devta - Thanks! Since it uses the selective laser sintered (SLS) process, the polyamide nylon powder is laid out in layers .1mm at a time and fused by the laser. There is no support material because the powder around the fused material acts as a support. The full model gets lifted out of the powder and the excess powder then gets cleaned off. The model is designed with a minimal amount of space between each part so it doesn't get fused together. Hope that makes sense.
vertigopolka 5 months ago
How do you print all in one printing session?
Do you use another support material to be discarded?
Thank you.
The design and functioning is pretty impressive.
Devta
devta 5 months ago
cool! thats awesome!
quosmo1 5 months ago
I ave being searching for this shape last knight I was visualising a lift generator and you have in your hand the almost similar shap missing the elicoeidal eg shape inner space !!
jeancolmor 6 months ago
wow
Sylvanas17 6 months ago