Introduction: Dremel Belt Sander Attachment

Picture of Dremel Belt Sander Attachment

I made a small sander attachment to be used with my dremel rotary tools.

Sander can be mounted to my diy dremel lathe, or it can be used without it.

Its light weighted and easy to take outside, i like to work outside in the summer, so good mobility is a bonus.

With cordless dremel it really is very mobile.

Step 1: Frame

Picture of Frame

Structure is very simple

I used 3mm steel plate as a material, it can be made from l-profile bar too, for example.

I just like to re-use scrap... that 3mm plate was only what i found.

I used wheels and bearings from the skateboard, some nuts and bolts.

This one was very cheap, because those nuts and bolts we're the only things i needed to buy.

Step 2: Tightening.. Mounting..

Picture of Tightening.. Mounting..

For mounting the dremel and tightening the belt i made a simple part from the polycarbonate.

I took the thread part from the dremel shaping platform attachment, you can take it nearly any dremel attachment if you have one spare.

Video in the last step shows the process.

Step 3: Guide.. Assembly

Picture of Guide.. Assembly

To keep the belt straight i made a simple tilting mechanism from the steelplate and bolts.

In the steelplate is M8 thread in the middle and M6 threads in the sides, bolt that works as an axle for the upper wheel is placed in the middle of the plate. Plate and side bolts are in the same line with the belt. Tightening or loosening smaller bolts tilts the upper wheel, what guides the belt from side or another. With simple adjusting you can get the belt go straight.

As a drive wheel i mounted the dremel drum sander to the rotaty tool, tightened it to barrel shape. It works very well in that task.

I was suprised how powerfull it is, it was supposed to be for making small things, jewelry etc.. but i have used it with biger tasks too, with no problems.

Video shows more.

Step 4:


That's pretty rad!

Jose ArturoG1 (author)2017-02-01

Hermoso muchas felicidades saludos.

NeilRG (author)2017-01-26

The tracking adjustment is a nice and essential feature. Nice project.

ScottA133 (author)2017-01-19

I would like more information on to make this if you are willing to help explain. Can we talk private?

Hi. You can send me mail to I tried to send you a message, but it doesn't seem to work...

Juanmigp (author)2017-01-18

Buena herramienta, eres un manita.Felicidades.

TúC2 (author)2017-01-18


annrrr (author)2017-01-13

Looks very professional

Tuomas Soikkeli (author)annrrr2017-01-17


Leei1337 (author)2017-01-13

This is amazing, I was literally thinking about making one of these last week using the same techniques!

Tuomas Soikkeli (author)Leei13372017-01-17

Thanks. Yep, that's sometimes amazing how two persons think in the same way, in the other sides of the world.

GENGHIS KHAN JR III (author)2017-01-17

Looks like an amazing tool that'll make Knife ownership and maintenance easier .

TomK147 (author)2017-01-17

I was wondering if I could use my Dremel to drive a belt sander. Thank you for the awesome video showing how you did it! Also, thanks for showing how you re-purposed scrap material. I would do the same thing :-)

Tuomas Soikkeli (author)TomK1472017-01-17

Thank you very much.

cavalier19 (author)2017-01-17

Versatile tool gets better. Very neat craftsmanship. Looks very professional.

Thank you!

branke (author)2017-01-12


I can use one of these.

But I am not sure that the Dremel shaft will last under the tension.

It will not carry all the stress long.

Please correct me if I am wrong!

Tuomas Soikkeli (author)branke2017-01-12

I have used mine for a 8 months now, i use it also with my lathe and haven't notkced any problems. Belt doesn't need to be very tight, sanding drum is made from rubber and has enough friction.. So it doesn't "bend" the shaft very much. I think it stresses the dremel as much or less than routing or cutting with the spiral cutting bits does.

branke (author)Tuomas Soikkeli2017-01-13

Hello there,

Thanks for your answer.

Seems like I have underestimated the Mighty Dremel.

Will build one A.S.A.P.


medanilevin (author)2017-01-12

Awesome idea!!!


Modern Rustic Workshop (author)2017-01-12

Phenomenal idea! Definitely added on my list of things to make! I have one of the newest models of Dewalt's corded drills, which I bought specifically so it could also function as a makeshift motor for small projects like these, so I hope to hook it up when I eventually make one of these (The drill is an absolute beast)!

P.S. Do you have an Instructable on the lathe you made? If so I unfortunately couldn't find it for some reason...

Im still working with it. It can be used for routing and shaping too. Also it can be used with drill also. I need to figure out how to attach routing table to it without making it too complex.. I have made some videos from it, you can see the main parts from this video:

Final part with some improvements is still under construction.

CraftAndu (author)2017-01-12

Clever idea!

Thank you

AbdonS1 (author)2017-01-12

i love it and have to make one myself

Tuomas Soikkeli (author)AbdonS12017-01-13


BeachsideHank (author)2017-01-12

This is nothing short of incredible!

A very useful adaption for a highly popular tool, a big well done to you. ☺

Thank you. Its very easy to make own versions from it. Frame can be made from plywood or something too.. One thing that needs to be noticed that if using thicker materials, "drive wheel" sanding drum may not reach to the center of the belt. That's why i used steel.

About This Instructable




Bio: Just a fellow who want's to learn new tricks and skills.
More by Tuomas Soikkeli:Manual Bar Bender / Scrolling ToolDrilling Station3D Printed Rorary Tool / Drill Bit Holder.
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