Q:

CNC

Hello all. 🙂
Ive not been on the forum for a while. Got a CNC lathe and had to learn to program it from a photo copied manual so not had a lot to show for six months or so.
But im finally getting my head around it.
I tried to learn it from a beginers point of veiw. but after a while i just jumped in with full programming. (cheers for the advice Bubba).
Any hoo. thaught id put a few pics of what i did over the holidays.


I got a full length of hexagonal 303 fee cutting stainless and stood and chiseld a few valve bodys out. Made quite a few ferk ups. But i edited the programs untill it was running sweet. Takes about 16 minutesto do a full valve body (done in two halfs/programs). Mainly ran at 750rpm, but wiil edit to run at 2000rpm for the other half of the bar.


I did away with the O ring on the tophat and instead put it further down to run on the stem.


You can just about see it down there.


Stems are a little harder. The pitch and depth of the threads and surface finish are hard to get right. And no anular dwell groove where the threads end so no week point to snap off at. These are straight off of the machine. No further finishing is needed. I went from 303fc to 316hmq to get this. The 316 is a little harder. But it gives a good shine.

Mr Leupy has offerd me a little space on his web site to put a few pics up. I’ll send him a few valves up for his pleasure in the next week or so.

Anyhoo. Sorry to have bored you for so long.
Av got a few bad videos of the bodys being done . But a dont know how to post em.
Thanks if you still awake 😕
Sean.

Mods/Machinists

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Viewing 15 replies - 1 through 15 (of 19 total)

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Wow 😀
praise from Ceaser.
Cheers Antony. Meens alot does that.

May as well put pics on this post as its titled CNC.

As it arrived.


The “arse end”


It just had a dixon type toolpost when i baught it. Searched high n lo for one of these in the states as thats where they seemed to be made. Then found 2 70 miles away from me. got a full set of radial tooling and collets.
Anyhoo. Time for some breakfast , then into the garage.
Later all.

Great video..
Oustanding work my Friend

quote FairlyInconspicuous:

Blod,

What hardware are you running?

Full CNC or CNC retrofit?

Its full CNC. But its conversational programing. It fills alot of the ticklish stuff in for you.
But it has “teach mode” also. Use it as a manual machine, And save each move and it will just repeat what yuv done. Then edit as seen fit.
Converts to G code when put on a disk.
Al put a few pics up in the workshop post.

how much are they to buy ?

Got any good vids … you know the snuff ones … the ones with the crunching as the tool smashes apart …… and your arse nips up ! … Ohhh ! there the best 😀
Watching the valve vid for me was like doing unpaid over time !
Good to see your sorted it , even if you made me read that Romi manual and then didnt need me !
L8r Chap 😀

Blod,

What hardware are you running?

Full CNC or CNC retrofit?

Ohh, shiny stuff 😎

Must catch up with you bud’ 😀

quote Hoot:

Very impressive video. But how do you hold the phone camera steady while dancing to that music??? You’re probably double-jointed or something!

Regards,

H 😯 😯 T

Sorry Hoot o’l pal.
Just for you al put some “charlston” on next time.

Less “Hip Hop” n more “hip opp,'” at your age eh ? 😉

quote jezx:

nice stuff . i got a cnc mill a while ago , been thinking about a lathe . the video looked good .

when your cutting the thread does it feed it ahead on a 60degree or just straight ? looks like it always does a nice front cut .
316ss is nice to use , hard on the cutter but peals off smooth.

Thread inserts are full form (7x.75). Have got a few 55 and 60 deg’ internal for the horn 105. They cut nice.

Chaars, Sean.

quote Hecklerjones:

Looks like fun! You might try an insert with a chip breaker if those shavings become a problem. Great finish on that stuff. I thought you were using a swiss b/4 on the other ones.

Pretty decent vid for fone!

They supposed to be chip breakers. But they very fine 16 04 04 vbmt.
forgot what grade they are, but did spec for ss.

nice stuff . i got a cnc mill a while ago , been thinking about a lathe . the video looked good .

when your cutting the thread does it feed it ahead on a 60degree or just straight ? looks like it always does a nice front cut .
316ss is nice to use , hard on the cutter but peals off smooth.

Looks like fun! You might try an insert with a chip breaker if those shavings become a problem. Great finish on that stuff. I thought you were using a swiss b/4 on the other ones.

Pretty decent vid for fone!

Very impressive video. But how do you hold the phone camera steady while dancing to that music??? You’re probably double-jointed or something!

Regards,

H 😯 😯 T

Wow that looks great 😀

Not sure if this is gunna play. Am sure video function on me phone is rubbish.

I know i should’ve used coolant. But the phone is crap already without being full of coolant as well.
Sean.

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