Quote Originally Posted by Jon View Post
The Dremel version:



Of course there was some dust kicked up on the internet over the fact that Dremel's product came out after various DIY versions:



I've never used the vacuum-powered version, but I think the consensus may be that it's a clever DIY idea to save money, but that it's silly to buy it new from Dremel.
I have that dremel version. My opinion is that its too underpowered, and little too big.

I think i could make much powerfull version by myself.. for etching glass, when particles are small.

When it also needs to be able to suck bigger particles too, then it can't be made too "tight" or it gets stuck.

Also, when it sucks hard particles all the time, it can't last very long without replacement parts.

I think thats why dremel vrt1 is somewhat forgot allready.
They made a mistake when designed it to be used with different materials.

High rpm version for glas etching could be somewhat usefull.
For other use its hard to find good excuse to use 2000 watt vacuum cleaner to power "motor" that gives you less than 10watts. You need to work with it so long that using actual rotary tool and vacuum cleaner is more energy efficient. Its good diy idea, bad for commercial use. Imo