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Dremel Turbine

by Landru, published

Dremel Turbine by Landru Nov 2, 2011

Featured Thing!

Description

Turn your Dremel into a blower or vacuum. It works really well!

.75" ID output port, 2.15" inlet. Inlet bolt circle is 2.438" in diameter, and is for 6 4-40 bolts.

Printed on a Fablicator!
fablicator.com

EDIT: The Impeller I believe is backwards. It still works very well, though. I'm going to re-print a mirrored version to see if it makes any difference.

EDIT2: The impeller works about the same despite being right or left handed. go figure.


Recent Comments

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Would it be possible to modify the design to be able to have more output pressure with a smaller nozzle? When I put a small nozzle on it the air just comes out from the sides.

I think it works the same left or right-handed because centripetal force is what drives it, not the angle of the blades. The wrong angle would just add a bit extra drag.

Nice! But was tricky to print for me, the horizontal tube it only attached to the bed with one line. It comes of really easily.

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License

Dremel Turbine by Landru is licensed under the Creative Commons - Attribution license.

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Instructions

Disclamer!!!

Wear Safety glasses when first turning this on! The impeller tips spin at 200mph and will not hesitate to injure you if the impeller comes apart! Make sure the print is very good quality before spinning it up! Use at your own risk!

Print all 3 pieces.

Screw the neck onto the Dremel until snug.

Thread the Impeller onto the Dremel shaft. It might be a little tight, but will go on with a little effort. It must be threaded on completely, so there is ~1/16" clearance between the bottom of the impeller and the neck. Be careful not to break the blades, though!

Attach the shroud. The alignment pins should all line up and snap together with the alignment holes. Screw the neck and shroud together with (6) 4-40 X .25" screws.

Congratulations, your Dremel is now even more multi-purpose!

Comments

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dddman on Mar 17, 2014 said:

Would it be possible to modify the design to be able to have more output pressure with a smaller nozzle? When I put a small nozzle on it the air just comes out from the sides.

Corona688 on Jun 26, 2013 said:

I think it works the same left or right-handed because centripetal force is what drives it, not the angle of the blades. The wrong angle would just add a bit extra drag.

Jasper1984 on Apr 21, 2013 said:

Nice! But was tricky to print for me, the horizontal tube it only attached to the bed with one line. It comes of really easily.

VirtualGathis on Mar 8, 2013 said:

This looks awesome. I wonder if a tesla turbine style impeller would blow as well with more durability. I'll have to make this and try it with my rotozip.

fma on Dec 20, 2012 said:

I would like to print a smaller version, but scaling the impeller would lead to too thin fins (say it quickly!).
I
had a look at the Solidworks file, but it seems that you use an
external tool to generate the part. Do you have the source of source?

Anonymous on Nov 28, 2011 said:

I printed the impeller and then wiped it down with acetone to strengthen it. It spins very fast on my dremel. I'm kind of wondering if it wouldn't be a good idea to lessen the amount of fins and make the rest of them a little thicker?

lars0 on Feb 27, 2012 said:

I guess I am kind of curious about the impeller design philosophy too. What resources did you use to design it?

Kenku on Nov 23, 2011 said:

Awesome little thing... printed one in PLA then investment cast it in zinc for fun. Way cool.

lazerusrm on Jan 7, 2013 said:

pics?

dob71 on Nov 5, 2011 said:

Does it blow good enough to replace those $5-10 compressed air spray cans for cleaning dust off the computers?

lazerusrm on Jan 7, 2013 said:

it moves a lot of air if the dremel is on high speed... a lot of air

Landru on Nov 5, 2011 said:

For cleaning general dust out of a case, absolutely. You might still need a dust can/compressor for crevices, though.

I'm going to guess 60mph exit speed. Maybe a little higher with a reducer.

danielpublic on Nov 3, 2011 said:

I guess this was the last piece for anyone who would like to build a 'Free as in speech'-robotic vacuum cleaner! NICE! Thanks!

tlalexander on Nov 3, 2011 said:

Hah, well not untill we build an open source dremel!

msmollin on Nov 3, 2011 said:

Any recommendations on print settings?

Landru on Nov 3, 2011 said:

I used external only support, and .2mm layer height and w/t of 2.

There were a few threads which got printed in air on the outlet transition, but most everything else was spiffy.

Certainly not an 'easy' print though.

jjuliano on Nov 3, 2011 said:

I was Just wondering if anyone had made a nice turbo impeller - yup. This is just awesome

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