An INTERNAL spline?! I think you can amswer that question by yourself by watching the tool and tool holder again.

🤣🤣🤣....i cant upload image to show you that it can and see your face.

I'm sorry, I sold it. What's your question? Maybe I still can help.

I saw that inside of it there is no oil bath like I saw at the Klopp machines. How does the bull tooth wheel gets oiled? Should I keep it greased and that’s it? Another question would be how can I engage the down automatic feed? As I noticed there is a pulley just like for the horizontal feed bit it doesn’t seem to engage anything. Also… what the direction of the motor should be? As you look at it and the belts from above should it move to the machine, or the other direction?

Honestly, I never measured that. I just made it the same size as I wanted. Yes, it might come out at tad smaller. The core itself does not shrink. But 0.1mm in casting is not worth thinking about. You will have more shrinkage of the part than that. Albeit, as the core is quite solid, the shrinkage will be less that on an OD. I always go with 1% and try to keep the casting temperature low. Around 650 and down to 600 °C or even 580 °C. Many cast way hotter, maybe they can't afford a propper thermometer? IR thermometers do not work, because of emissitivity (SP?) of aluminium (SP!).

2K rattle can should be sufficient. Brake cleaner is nonsense in rattle cans. I don't know how generations of mechanics could live without them. And I have severe doubts how well that crap works for this application. For degreasing, acetone is best, but nitro thinner is good too and easily available. Now why did all that peel off later? Is the first layer still in place? Was the shelf live of the paint expired? They don't last forever! 1 ... 2 years. EP-primer is OK, but for the finish, I prefer PU as it (in my experience) has a nicer finish. Did you shake the cans well? Did you sand the primer? Scotch brite ("Schleifflies") gray or fine black is enough. If you buy a can of filler, it is cheaper than a rattle can: www.123lack.de/ep-2k-grundierung-1kg-set-inkl.-haerter-mipa-epoxy-100-20 The paint is more expensive: www.123lack.de/mipa-2k-acryllack-set-pu240-inkl-haerter-ms10-alle-ral-farben (it is PU, not acrylic). They also do have a cheap spray gun (NOT a HVLP = High volume, low pressure). But all this will set you back at about 100 € 😞They do have 2 K rattle cans, but I have no experience with those. Hope that helps!

​@@MuellerNick Hello, is there a way to contact you?

@@MuellerNick Xylol/xylene for degreasing, if still available? And it smells nicely. 🌹

No we want to hear his explanations. But feel free to be silent yourself

@@sblack48 nope

It might be that he doesn't know what the mute button is for. Be patient!

Just me pulling a leg of those who wear gloves whatever they do. ;-)

Oh! Danke für die Nachfrage. Es geht wieder besser.Video ... ja ... das dauert noch. Ich hab eine Flachschleifmaschine, die ich komplett herrichten will und auf CNC umbauen. Aber ... Aguri!