Author Topic: Kutzall disc  (Read 976 times)

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Online rvieceli

  • Posts: 967
Kutzall disc
« on: April 03, 2019, 03:18 PM »
Anybody using a Kutzall disc in an angle grinder?

I need to shape some stuff and looking for something faster than paper on a Rotex. But I’m concerned about how hard they are to control. Any experiences?

Thanks Ron

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Offline AndrewG

  • Posts: 89
Re: Kutzall disc
« Reply #1 on: April 03, 2019, 05:33 PM »
Hi Ron,

I have almost finished sculpting a chair using a holey galahad wheel attached to an angle grinder. I did a lot of research before I got the galahad wheels, and what got me over the line over the kutzall was that the galahad wheels has tiny holes in the discs and it makes it easier to see reference lines etc where you’re sculpting.

The galahad wheels are very easy to control, and from my research the kutzall wheels are the same. Have a look at Canadian Woodwork’s on YouTube, Paul Lamenski (I think that’s how you spell it), uses the kutzall wheels to sculpt his chairs. He highly recommends them.

However, one issue I had was that it kicked up dust everywhere! If you’re working outside it’s not really a problem but I was inside my workshop. I ended up buying the RAS 115 with 24 grit paper. WOW! The RAS is impressive, very easy to control and picks up around 75% of the dust. I then used my RO150 to smooth and sand the surfaces.

Offline deepcreek

  • Posts: 797
    • TimberFire Studio
Re: Kutzall disc
« Reply #2 on: April 03, 2019, 08:14 PM »
I'm a big fan of the Holey Galahad.

Very easy to control and you can see what you are doing as you sculpt.

I bought a coarse and a fine.  The coarse worked beautifully but I found that the fine left a weird texture that was harder to sand smooth.

It is a dusty job and best done outside.

Be sure to clamp your work piece, screw it to a a larger board from underneath, or at least sandbag it in place.

Look into Saburrtooth bits like the coarse sphere used on a Foredom or die grinder for detail sculpting but they are much harder to control.

I used an RO90 with an interface pad for sanding smooth.  The Arbortech Contour Sander is great to have for harder to reach areas.
Joe Adams
TimberFire Studio
Houston, Texas

http://www.facebook.com/timberfire

Online rvieceli

  • Posts: 967
Re: Kutzall disc
« Reply #3 on: April 04, 2019, 10:42 AM »
@AndrewG and @deepcreek thanks for the suggestions and the reviews. I do think that looks like the way to go. For this project though I think I have figured out a way to remove the bulk of the material on the bandsaw. Then I’ll use the Rotex and some low grit to do the final profile.

Thanks again. Ron

Online Cheese

  • Posts: 5800
Re: Kutzall disc
« Reply #4 on: April 04, 2019, 12:12 PM »
I'm a big fan of the Holey Galahad.

Great execution and a very clever idea for a table.  [thumbs up]  Nice job... [big grin]

Offline deepcreek

  • Posts: 797
    • TimberFire Studio
Re: Kutzall disc
« Reply #5 on: April 04, 2019, 06:08 PM »
@Cheese

Many thanks!  It was a fun project.
Joe Adams
TimberFire Studio
Houston, Texas

http://www.facebook.com/timberfire

Online Cheese

  • Posts: 5800
Re: Kutzall disc
« Reply #6 on: April 04, 2019, 08:44 PM »
@Cheese

Many thanks!  It was a fun project.

Just curious Joe, are those chaps metal?

Offline deepcreek

  • Posts: 797
    • TimberFire Studio
Re: Kutzall disc
« Reply #7 on: April 04, 2019, 11:01 PM »
@Cheese

Good eye!

Yes, it's 1/4" HRPO steel that has been chemically patinated.

There is a thread about it over in Members Projects.

http://festoolownersgroup.com/member-projects/texas-furniture-makers-show-57890/
Joe Adams
TimberFire Studio
Houston, Texas

http://www.facebook.com/timberfire

Online Cheese

  • Posts: 5800
Re: Kutzall disc
« Reply #8 on: April 04, 2019, 11:15 PM »
@Cheese

Good eye!

Yes, it's 1/4" HRPO steel that has been chemically patinated.

There is a thread about it over in Members Projects.

http://festoolownersgroup.com/member-projects/texas-furniture-makers-show-57890/

Nice stuff Joe...I'll add that while this isn't my style...you've arrived at a very clever solution and your creativity and follow through should be acknowledged.  [big grin]. The ribbon speaks volumes.  [smile] [smile]

What's HRPO?

Laser cut I assume? The geometries are so clean.

FWIW...my grandfather was born in Texas and he was known in Minnesota as the Cactus King.  [eek]   He put hundreds of them out on his patio in the summer.  [big grin]  He also loved loved BBQ and built an outdoor fireplace/smoker where he and my dad cooked countless pigs and consumed countless beers.  [smile]

« Last Edit: April 04, 2019, 11:22 PM by Cheese »

Offline deepcreek

  • Posts: 797
    • TimberFire Studio
Re: Kutzall disc
« Reply #9 on: April 05, 2019, 12:04 AM »
@Cheese

HRPO - Hot Rolled Pickled & Oiled so that the steel plate does not have any mill scale on the surface.  Otherwise, it needs to be sandblasted afterwards which does not leave as smooth a surface.

Yes, it was CNC laser cut utilizing my original CAD designs. 

The drawings were a lot of work as every last detail was drawn by me rather than relying on any existing templates.

You can take the boy out of Texas but you can't take Texas out of the boy!
« Last Edit: April 05, 2019, 12:06 AM by deepcreek »
Joe Adams
TimberFire Studio
Houston, Texas

http://www.facebook.com/timberfire