Internal Surface Finish over 9000!

[@MR-yq5rj]

Never seen a burnishing tool in action . It works pritty simple and good as I see . Nice job ! 👍

[@Roetz40]

Thanks

[@EatRawGarlic]

That's going to be a pretty damn high end meat grinder.

[@shirothehero0609]

Those Rego collet adapters are wicked cool. I experimented with a "coolant through" R8 annular adapter I modified on a tormach that was somewhat successful, but I really like the simplicity of the Rego being a collet nut - that's it. Even though you don't have a high pressure pump, having something pushing the chips out looks seriously helpful. Way awesome.

[@timhess3405]

We found him! The official supplier of nozzles for the German noodle industry ;-)

[@Roetz40]

:D almost!

[@DaveEtchells]

Very cool gadgets for adapting THC to a standard chuck. New information for me, thanks!

[@MarionMakarewicz]

I don't know, but any time I get to learn about a new tool or process, I am interested. Thanks for the video.

[@mvadu]

How does those pins spread out in that tiny increment and yet keep the parallelism with overall shaft!! Amazing engineering, thank you for showing.

[@Roetz40]

They do roll on a conical surface. By screwing the tool you advance the conus thats what dials in the increments

[@ctrhenry]

Great example of using the correct tool for the job

[@sicstar]

You could try a gun drill for that operation, aka Einlippenbohrer. Full TC one, you might get away with a VERY good surface finnish (we managed Rz of under 1 in some parts) with 1 operation. In that size the tools are not that expensive. Might be worth a try.

[@Roetz40]

Thank you for mentioning. Maybe I'll give it a try!

[@sicstar]

@@Roetz40 if you do and remember let me/us know :)

[@joshuawentworth7426]

If you make a ton of these Iscar makes indexable sumocham drills all the way down to 4 mm.

[@julias-shed]

Such an old technique but a modern twist cool 😀

[@tinom.2455]

Looks great. What are these used for?? Looks like a Stencel for food industry. Weiter so.

[@Roetz40]

Plastic extrusion industry

[@johanness6545]

Dachte mir auch das wird ein extruder für Erdnuss Flips

[@MadHatter123456]

Wow. Really impressed by that tool! Great video, as always 😀👍

[@johanness6545]

Ist das ein Erdnussflipextruder :D cooles Zeug

[@Ryan-dz3jo]

Yes I did find that interesting and i like the way you solve problems to work with what you have.

[@Roetz40]

Thank you!

[@captcarlos]

A very polished performance.. Well done!

[@Roetz40]

Thanks buddy

[@sirnearlyheadlesnick]

Danke Roetz, forgive the pronunciation, good to see you have a gap in the work flow to upload a video.

[@HolosunGodOdin]

Expensive shower drain!

[@ianagos4276]

Very interesting use of the burnishing tool but i think with proper coolant pump you could run the TSC drills and they would leave a much better finish than even your reamer was leaving. I have definitely gotten some mirror finish holes with no scoring or gouging with 213PSI TSC with a 3/16 yg1 inox dream drill. If you had 500 or 1000 PSI ]i think you would be in even better shape

[@marcelhorn8606]

Made by Gühring 😎Love it

[@davidkitsio3839]

Do you deburr those holes afterwords, if so does that process not mess with the diameter by pushing a burr in possibly? Maybe running a chamfer tool before the reamer makes sense?

[@Roetz40]

I have spiralized chamfer tools that wont leave a burr. I dont chamfer on cnc because I have to do other side manually either way and its easier this way. Also they get chamfered while grinding process

[@davidkitsio3839]

@@Roetz40 I see. Those chamfer tools look super neat, I’ll have to try them out someday. Thanks!

[@TrPrecisionMachining]

good video and good tools

[@max_eley]

Thats actually quite nice.

[@ipadize]

0:57 this is Big chuk (Big Shaq :P)

[@moonshinewilly01]

I'm not a machinist so apologies if this is a stupid question but did you try this out without reaming first?

[@Roetz40]

Burnishing is only working of the prefinish is reliable. In my case the burnishing is only widening the bore by 15 micron. If the pressure is too high, the tool will break

[@moonshinewilly01]

@@Roetz40 ah ok that makes sense, thanks!

[@DaveEtchells]

@@Roetz40Ah - I was wondering how much the burnishing would affect the dimensions. Very cool!

[@jbrownson]

Love your videos, thanks!

[@bernhard_derProtoTyp]

niiiiice! danke für den tipp!

[@Roetz40]

Bitte :)

[@carnsoaks1]

One blemish only, @ 10.17, so close to perfect. Call it Japanese Precision. But certainly not Germanic

[@Roetz40]

@ 10:17 thats a short fabric from my benchtops grey carpet :P but perfect is a strong word and really hard to achieve