Extruder Screw CNC Milling Step 2 Finishing

Second part of the extruder screw I did a few weeks ago. The finishing took a bit longer than roughing. I tried a few different approaches to machine but finished with a final smooth cut. First time I've done a large screw on my Mori Seiki. Will try something different next time. Reverse engineered from a few broken pieces. This went to certified welding and back to us for grinding and polishing. I am still learning and like new type of parts keeps things interesting and the hours flowing.

MarTool at Zala Machine in NJ

Send me your Parts!!!!!

[jimhassad]

I am glad you showed the finished repair, it explains why repairing versus new part was chosen. Again, excellent video showing your mastery of programming from scratch and I agree, not all parts are for NASA, just make it work!!.

[dadoVRC]

I can't understand why you made it roughing in 90°steps.
I made some on the lathe (Mori Seiki NL2500) simply in G107.

[zubwigv]

One thing a machinist should never say is not perfect but good enough.

[llljj]

Thats pretty cool. We had an NT6600. It would wind up like that. I believe there was a way to reset the C axis back to zero. Very cool stuff.

[timisaacs]

Wondering why you conventional milled the screw face and climb milled the backside? Cool part.

[kisspeteristvan]

Nice repair . first i tought, that is the complete part .

[machetewutang]

When you using ball mill for finishing your program is going on Y0.0 or is moved out from part centre axis? Not every ball mill have center flute.

[vijaypanchal]

This not easy to do need a good skill experience very good work

[maikeydii]

Have you ever tried bullnose/troidal/corner radius cutters when milling this kind of screws?

[raider]

awesome video!!! how did you figure out the pitch and the angle???

[michaellapierre]

MarTool - Great job! Did you program that right on the machine or did you use a CAM software? I've done some complex 3-axis shapes using CAMWorks. It's good fun, but expensive software. After seeing your video, I might just add a 4th axis to my mill. Very cool job you did.

[joseantoniolopez]

hello wich software did you use for it?

[larrylund]

Is this an injection molding extruder? The customer provided part had some serious metal fatigue. Millions of parts before it gave up.  I would guess this is from a 50 ton or larger injection molding press.

[alunmo]

Hope this was extruding something soft like rubber. Otherwise it would need to be nicely hardened. I work with glass filled nylon and that repair wouldnt last more than a few days.

[ostkurzfilme]

Nimm eimal ein Stück Welle im Durchmesser vom Fräswerzeug und halte es an die Spirale wie beim letzten Schnitt dann fährst Du von der mittelachs richtung y+ ca beim radius steht das Werzeug genau Senkrecht.

[spikeypineapple]

What happened with the gouge near the start of the screw?

[SaporitiMachines]

good but seems slower work compared to screws milling machines

[twstesteam]

Hahaha Michelin is your client no ?!
^^

[aymankidwany]

what is the material of the machined screw ?

[jarisipilainen]

1:37 i bet CAM and million lines code. i only see 1 lines macro code. let cnc calculate it from variables you give. and surely not that way. i see screw do it like lathe way lol. easier for MACRO(programming by hand) lol xD