Thread milling

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martin54
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Thread milling

Post by martin54 »

Just experimenting with the thread milling toolpath, these aren't finished yet but not looking to bad so far. 19mm oak so done in 3 pieces. Just given them a coat of sanding sealer so finish sanding & top coat still to do.
15958793071618530681491358686062.jpg

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TReischl
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Re: Thread milling

Post by TReischl »

Looking good Martin!
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Re: Thread milling

Post by mfirlott »

Sweet. Nice use for the threading toolpath.
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martin54
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Re: Thread milling

Post by martin54 »

Thanks, need to work on my speed & feed settings I was way to conservative as you can see by the burning on the threads :lol:
With these I just used a small ring of a darker coloured wood to fill the gap at the bottom of the thread, next try will be to leave a small recess in the lid to do the same thing.
Already thought of another way which I think may work, using a square thread cutting tool to produce an undercut at the base of the threads, just need to sort out some pennies as these bits aren't the cheapest :lol: :lol: :lol:

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fretsman68
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Re: Thread milling

Post by fretsman68 »

Very nice work, Martin! May I ask which cutter you chose?
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scottp55
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Re: Thread milling

Post by scottp55 »

Looking really Nice Martin!!
Very nice job! :)
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TReischl
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Re: Thread milling

Post by TReischl »

I use a slotting cutter to produce the recesses.

Not that I do much threading, was on kind of a threading kick a few years ago. I bought an el cheapo set of slotters from HF that has one it at .062 inch.
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martin54
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Re: Thread milling

Post by martin54 »

fretsman68 wrote:
Tue Jul 28, 2020 10:50 am
Very nice work, Martin! May I ask which cutter you chose?
That one was done with the same bit that Vectric used in the tutorial, someone posted a link in another thread & the Company had a UK branch so I just ordered from them. :lol: :lol:
However I have been looking into this a bit more & I am not sure just now if I could have bought something more suitable. It has a 3/4" diameter which means that you can't cut internal threads at under 1 inch (might be more) because of the physical size & the lead in & lead out required. I am now looking at other bits that are available in the UK which would be suitable for smaller threads. I have a mill as well as the router so may end up with different bits for both machines.

Ted, funny you should mention slot cutters because the same thought came to me a couple of hours ago. I already have slot cutters at different sizes which came with the lathe I bought years ago so I can try it without forking out any more cash :lol: :lol:

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Re: Thread milling

Post by RebeccaJ »

Nice work Martin! Thanks for sharing :D
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martin54
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Re: Thread milling

Post by martin54 »

Just a quick update, still haven't finished the first 4 I made but I have made some more. For these I started the thread for the lids at 4mm rather than zero the same way the tutorial for thread milling does, just so the top & bottom fit together without having to use a spacer ring.
Also did some 3D carving on the lids.2 of the weaves are a bit low but that was my fault rather than any fault of the software.
I've also made a jig for the lids so I can make up a few boxes & then add something to the lid at a later date should it be required. Again these still need to be finished :lol: :lol: :lol:
Oh I also made a couple of them with just 2 pieces rather than 3
pill box 80mm 2.jpg
pill box 80mm 2a.jpg
pill box 80mm lid1.jpg
pill box 80mm lid2.jpg

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Re: Thread milling

Post by scottp55 »

ALL nice Martin, but really like the "Thistle"!
Great work :)
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Re: Thread milling

Post by mtylerfl »

These are GREAT, Martin!
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Re: Thread milling

Post by SteveNelson46 »

Ain't this cnc stuff fun? And Vectric software makes it even more fun. Nice work, Martin.
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martin54
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Re: Thread milling

Post by martin54 »

Thanks Guys, certainly is fun Steve & I would have to agree with your comment about Vectric :lol: :lol:

Not finished yet though, still need to work on speed & feed settings, want to try different thread pitches to see what difference it makes (if any) I can also see some experimenting with resin fills both clear over a model & possibly coloured maybe a filled vcarve or just some coloured resin.
Wonder if anyone is making round resin river screw top boxes :lol: :lol: :lol:

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Re: Thread milling

Post by slowoodworker »

I know I'm a little late to the game, but this is exactly what I'm trying to do with the new thread milling tool. If you've figured a good way to get the lid and base to close tight I'd love to know. You mentioned slot cutters but the ones I have have a HUGE diameter (1-1/2" -- 38mm) and would be pretty scary on the CNC.
A jig for doing additional work is a great idea. Thanks.
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