Stuff you have made today

[Dr.Al]

Don't know why more people don't use centre drills as they are excellent for starting such holes without wandering.

I use spotting drills instead: they work just as well or better than centre drills but are much more robust.

 

[Brad93]

Few more arty bits

 

[MattF]

Hi,

I've just made a woodturning lathe center steady whilst it's poured with rain and been perishing outside; what a change to spend a few quality hours in the workshop hiding from the world's problems.

Kind regards, Colin.

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Any excuse to do a bit of welding. I'm out of practice.

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It's been wonderful playing with my toys.

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The completed steady; skateboard wheels used. Long clamping handle and clamp make a decent mounting.

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A bit of arc welding using my Pickhill Bantam; Not the best of welds but it's ages since I did any welding.

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A neat out of the way clamp.

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This should making turning things like goblets easier whilst hollowing; it's a perfect sliding fit between ways ensuring accurate alignment. Just a nice project with something useful at the end costing very little in monetary terms.

Nice vice. Love the antique Parkinsons.

 

[Hood]

How many drill bits did you get through?

Tell me about how you did it?

I normally go 3.5, 7, 10, 13, 16, 18.

But I watched some YouTube video last night bloke went small, to massive, no messing around.

316L kills our drill bits...

Your thoughts please.

No wonder you are killing drills if you go up in steps like that.
If on a flat surface I usually go through with the drill that is the finished size but that depends on the machine I am using to drill. If a lathe, Mill or pillar drill then in one hit. If a hand drill then as has been said go through with a core size pilot then drill to size.
On rounds etc I will spot drill first then pilot with core sized drill then final drill.

 

[Barking Mat]

No wonder you are killing drills if you go up in steps like that.
If on a flat surface I usually go through with the drill that is the finished size but that depends on the machine I am using to drill. If a lathe, Mill or pillar drill then in one hit. If a hand drill then as has been said go through with a core size pilot then drill to size.
On rounds etc I will spot drill first then pilot with core sized drill then final drill.

Pillar drill. Wish I'd studied engineering,doh !

 

[Brad93]

Drill a pilot and then through full size on most things

 

[Hood]

Pillar drill. Wish I'd studied engineering,doh !

So do I

 

[Barking Mat]

So small pilot drill, then whack a big one in. Thanks folks.

 

[Brad93]

So small pilot drill, then whack a big one in. Thanks folks.

Pilot drill should be the web thickness of your full time drill

 

[Barking Mat]

Pilot drill should be the web thickness of your full time drill

Web thickness, you couldn't expand on that please, for those 'thicker' members like me...

 

[AndersK]

Core diameter

 

[Hood]

 

[Barking Mat]

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Thank you, I love learning.

 

[Barking Mat]

As opposed to killing drill bits...

 

[Hood]

Also remember when drilling or milling stainless you need to let the cutter work hard. Letting it rub will work harden the stainless and make it very hard to drill/cut with a normal HSS/HSSE drill. So relatively slow speed and plenty pressure to make the drill cut or if milling then fast(ish) feed.

 

[brightspark]

Also remember when drilling or milling stainless you need to let the cutter work hard. Letting it rub will work harden the stainless and make it very hard to drill/cut with a normal HSS/HSSE drill. So relatively slow speed and plenty pressure to make the drill cut or if milling then fast(ish) feed.

and use cutting compound otherwise the drills wont last 5 minutes using compound you can drill loads of holes before resharpening them

 

[Barking Mat]

Also remember when drilling or milling stainless you need to let the cutter work hard. Letting it rub will work harden the stainless and make it very hard to drill/cut with a normal HSS/HSSE drill. So relatively slow speed and plenty pressure to make the drill cut or if milling then fast(ish) feed.

Good information.

Thanks.

Where does one learn this stuff?

Work alot with A4 stainless 316L I think. Marine grade, like you. Wish I'd learnt this year's ago.

 

[Barking Mat]

and use cutting compound otherwise the drills wont last 5 minutes using compound you can drill loads of holes before resharpening them

Cutting compound ? Not oil, please explain.

God, I'm 45, and know nothing.......

 

[Hood]

Good information.

Thanks.

Where does one learn this stuff?

Work alot with A4 stainless 316L I think. Marine grade, like you. Wish I'd learnt this year's ago.

Personally I learned from trial and error, lots of the latter

 

[Hood]

and use cutting compound otherwise the drills wont last 5 minutes using compound you can drill loads of holes before resharpening them

It can help but if I am honest I very rarely use it when drilling stainless. mill and lathe I usually have flood coolant.