Fat Thread Skinny Insert -- Rope Thread CNC Turning

[@Herbster472]

I'm enjoying your videos as much as I do Edge Precision videos! Thanks for the excellent content!

[@zalamachineshop]

Thanks honor to be in the same sentence as Edge.

[@3axisrocks393]

Nice! We do a lot of this in Featurecam and it's pretty easy and fast to program. You draw the profile, pick the tool and set the stepover and step-down. Done.

[@Kizmox]

Haha great stuff. My first impression was "I think I know how to program a thread like this but it will be annoying" and later when you wrote that each cut was separate operation. Exactly how i was thinking. So basicly you were cutting several normal threads at different starting locations.

[@zalamachineshop]

Yes many thread operations each with a different starting position and minor diameter. Total of 149 operations for this one thread. Seems like much but whole lot of material to remove and wanted to make the insert last.

[@dhanapal4028]

Nicely done

[@Fischer977]

Somehow i had a feeling you will release a video today

[@milestone821]

Love from India ... I love your creativity ...

[@zalamachineshop]

Thank You my friend. Welcome.

[@ActiveAtom]

Thank you could watch this all day long, nice tool bits as well. Nice work fit into the male thread really neat machine work. Lance & Patrick.

[@Rough_cut613]

Hey that's a beaut bud. Good clean programming. Keep on with the good videos.

[@Davemcmasters]

That's the kind of stuff I want to work with.

[@orviesmith3546]

I am currently doing this with a grooving tool path. 1. I use “Depth Cuts” so that I only get positioning moves. 2. I make sure that “Groove Walls” is set to “Steps” so that I only get positioning moves. 3. I use “Absolute” for my retract value to clear the threads when positioning. 4. I activate “Dwell Time” so that I have a separate line that I can convert to threading. 5.This only works with a roughing path. Ok, When I post to Cimco, I shift the entire rough groove operation by a given amount so that I position in front of the stock. Then I Replace my dwell line (G4 P1000) with my Thread Z Finish Value & Thread Pitch (G32 Z-5.35 F.500)

[@joseantoniolopez3113]

nice job could you share the archive?

[@BentTreeFarmPa]

Weird on most of the roughing cuts, it didn't start breaking a chip until half way down the work, then it made nice chips, wonder why?

[@siraig]

.... What causes chips to break? Heat shock. There wasn't enough heat to shock the chip to fracture (with no coolant) until the cut was about 50% in.

[@frankwoodall5396]

Most likely it’s because there is flex on the tail stock side. And more rigid at the chuck. Carbide likes to be pushed so it’s more than likely because the work flexed away from the tool until about halfway when it got more closer to the rigid chuck side. But there’s so many things that go into machiningIt’s hard to tell exactly what without being there looking at it and checking your inserts an tolerances. Definitely a cool ass job to do though

[@RandomNumber141]

Yep the temperature at the cutting edge increases as the cut progresses, changing the chip formation

[@magnusraud9918]

Can you show us the Pro ,what you made for this part. Ty

[@PhaseConverterampV]

Very nice. Pretty hard to do that with fanuc threading cycles. Mastercam is good for turning this stuff I guess. Just used it for vmc

[@zalamachineshop]

Pretty hard to do it in Mastercam too. Not so much hard as tedious.

[@alishariat6134]

Hello Would you tell me pl how? I was looking for that for a long time

[@dimehbonics9974]

Awesome job!! 👍🏻

[@tomb816]

Would it make sense to cut the majority of the valley with a parting profiled tool and finish the flanks w/ the 45* tool?

[@zalamachineshop]

I always try to keep it simple. Prefer less tools if possible.

[@sunside79334]

OD thread is nice, but how the hell did you cut the inside one?? that's the real challenge here.

[@HH-Machining]

I want to see machining the Internal thread :)

[@zalamachineshop]

I got a video coming including CNC trepanning and ID rope thread.

[@spikeypineapple552]

Please do the programing video

[@razrmusic]

yes that would be awesome

[@sylvester007b7]

How to program the same., for variable pitch.,?

[@zalamachineshop]

Good question. Whenever I have variable pitch I mill it instead of turning. I don't know if there is a way to program a threading cycle with variable pitch.

[@szymonpage]

Witaj. Wyrazy uznania. Mam do wycięcia gwint zew. o dużym skoku np.5mm lecz o b.małym zarysie. Czyli dno gwintu ma być szerokie, a wierzchołki ostre. Wysokosc 1mm. Znasz może cykl gwintowania na okume, który pozwoli naciac taki gwint płytką np.tnmg?

[@zalamachineshop]

Czesc kolego. Jest program RopeCam w ktorym morzna robic taki program. Ja to nie uzywam bo nie robimy tego az tak duzo. Ja to programuje w Mastercamie na kazde przejscie osobna operacjie. Troche czasu zajmuje ale mozna to zrobic. Jak macie tego sporo to proponuje. www.fructus.se/en/ropecam Wyslij mi maila na [e-mail] jak chcesz to Ci podesle program w mastercamie na te kawalki jako przyklad. Powodzenia.

[@Brentiannoli]

how do you program a rope thread in mastercam? is there a rope thread option ive never seen or is there some feature inside the normal threading toolpath to do this kind of threaD?

[@zalamachineshop]

No unfortunately no rope thread option. I created a total of 149 threading operations for each cut. Sounds like a lot but does the job fairly quickly.

[@Regular6782]

Do you have a video of doing the internal thread? What is this piece used for?

[@zalamachineshop]

These are for large construction. Ones I'm working on are going into NYC airport construction.

[@ryana2652]

How is it become a 45 degree thread when you're using a 60 degree insert?

[@zalamachineshop]

I step over the 45deg profile. Each pass is in a different start position.

[@CAD_CAM_TRAINING]

are you programming with cam software?

[@nikolaiownz]

Do you use tnmg insert otherwise in the shop?

[@zalamachineshop]

Never. CNMG, WNMG, and VNMG mostly.

[@nikolaiownz]

@@zalamachineshop yeah me too. Never really liked tnmg. I prefer my cnmg and vbmt aswell

[@mannycalavera121]

How do you e end program a thread like this?

[@kacperAGH]

A jakby najpierw zrobić przejścia zgróbne nożem do rowkowania? A potem tylko wykończyć tą płytką?

[@zalamachineshop]

Przy duzym skoku jak to nie wiem czy nazedzie by wytrzymalo. Tak mala plytka stawia malo oporu w cieciu.

[@Fischer977]

What is the longest part you will turn without a tailstock?

[@therinframe343]

Fischer977 depends on the dia. of the workpiece. Usually once you get 3x the daimeter of the work piece sticking out of the chuck is when u wanna introduce the tailstock

[@kisspeteristvan]

Depends oh how much you chucking and what operations are you gonna do . With smaller parts even a 5xd stickout can be ok , but on large heavy parts , even 2xd could be too much .

[@Fischer977]

@@kisspeteristvan makes sense. Mine is 70mm dia 1040 steel, about 3d stick out and a large thread at the end. The surface of the thread came out disastrous. I told my machinis either use high jaws or tailstock. Koszonom szepen a segitseget.

[@kisspeteristvan]

@@Fischer977 Szivesen

[@alexgregg2466]

I know it has a BIG pitch but that was satisfying watching it screw into the female part so quickly

[@zalamachineshop]

Very satisfying indeed especially for the first time without knowing if it will work.

[@sachie123]

Subscribed😬

[@brennanz8up]

I'm working on a custom post for this in Mastercam, i wrote a similar threading cycle that cut a large wicker profile, took over 700 passes to complete lol, would definitely rather have a post do that for me lol

[@zalamachineshop]

I'd be very interested in that for Mastercam. But they do have a simple cam system just for rope and big threads like this. www.fructus.se/en/ropecam Thinking of getting this if we keep getting more of these.

[@c4tohagen]

For GibbsCAM one could use ThreadTracer and program the thread in a minute : kzbin.info/www/bejne/aoa4l5WModmYo6s

[@horseshoe_nc]

Nice!

[@MaximumDistortion2]

There is a special programming tool for exactly this kind of work which can make your life much easier. So if youre planning to thread more often like this, maybe its worth a shot. There's a demo video on youtube: kzbin.info/www/bejne/mZ-WgXqJaJpooKc The programm is available at www.buntetec.de/index.php/software/cnc-gewinde On the downside its only available in german (as far as i know, maybe im wrong). I am not working for this company btw.

[@m.noumanarshad9610]

Sir give me program for this thread

[@zalamachineshop]

Come work for me in New Jersey and I will teach you everything I know.

[@m.noumanarshad9610]

@@zalamachineshop I live in pakistan i can't come here.

[@alistairjcook]

@MarTool We are trying to replicate a similar thread in our shop, could this be done with a G32 and a Q value to give you the step over each time?

[@zalamachineshop]

Honestly I'm not sure. I think I programmed this the long way but I know it works real well. This was programmed in Mastercam with each cut being a different operation with a different start point and a different x value. 1 pass per operation. This job is about get repeated with many more parts to thread. I will use a different tool and take heavier cuts this time.

[@465maltbie]

It would kind of suck if you had to stop in the middle to rotate the insert. Charles

[@c4tohagen]

i do alot of threading like this with Gibbscam, you insert the thread in between cuts, rapid feed to 0

[@zalamachineshop]

Worst case scenario I would just rerun it. Doesn't take that long. But so far inserts are lasting running piece #12 with same insert edge.

[@c4tohagen]

@@zalamachineshopIs the cut generation automated or do you program each cut manually ? if the insert lasts over 12 parts maybe you could do bigger cuts

[@pejork8521]

Please share the G-Code 🙏🏼

[@jimboknife7272]

Holy hell that wasn't a canned cycle....

[@zalamachineshop]

Haven't found a way for mastercam to accept a custom thread profiles only standard ones already there. Had to get creative with this one and happy it worked. Just programmed this last Friday and still running now.

[@policebox1092]

This product as a master cam I want to see you write PLZ :-)

[@takkolee82]

Me too

[@zalamachineshop]

I will post soon.

[@policebox1092]

@@zalamachineshop I'm looking forward to it.

[@321kmon3]

With macro variables and 2 WHILE..DO loops - whole threading op would take maybe 20 lines of code

[@geo4983]

321Kmon Can you comment a sample code

[@kuldeepsharma-mz1qt]

I need t38 threading program

[@twstesteam347]

Ggg