Author Topic: Knocking one off the list ,,, Tapping attachment (Read 30594 times)

Rob.Wilson · « **on:** December 05, 2010, 02:56:11 PM »

Hi Lads

Being at a bit of a loose end this afternoon i thought i would make a start on a tapping tool ,,,, giving it a bit thought i decided instead of making the complete tool i would make an attachment to fit my new ped/drill as it has a good stiff column and large table ,,, this way i would save on shop space , material and time

The design so far , going to be a welded up job

It will fit here, between the collar and head casting and can be swung out of the way when not required

Selection of mystery metal for the job

A bit of ruff machining to size and welding

I still have to make and weld in the webs

When i have it all welded up i will stick it in the furnace for a bit of stress relieving ,, then machine it up proper

Rob

Brass_Machine · « **Reply #1 on:** December 05, 2010, 03:07:50 PM »

Very nice Rob.

Quote from: Rob.Wilson on December 05, 2010, 02:56:11 PM

When i have it all welded up i will stick it in the furnace for a bit of stress relieving ,, then machine it up proper

Rob

I was going to ask about it being square and perpendicular, but I think you answered it for me.

What did you weld it with?

Eric

trevoratxtal · « **Reply #2 on:** December 05, 2010, 03:12:43 PM »

Nice one!
but does it not interfere with the table rack on the support column ?
I did wonder how you would keep the two bored bushes parallel, but see at the end you had allowed for it, with stress relief then finish boring.
I am a great believer where possible to prefab with the welder, I like welding as well as turning.
As I said nice one, many thanks for the pics.

Trev

Rob.Wilson · « **Reply #3 on:** December 05, 2010, 03:33:27 PM »

Hi Eric

Just zapped it with my MIG welder

.

Trev ,,,,,,,,, it goes here

Rob

Bluechip · « **Reply #4 on:** December 05, 2010, 03:52:29 PM »

Hi Rob

Nice idea.. would it not be easier to make a two-piece clamp? No need to dismantle the drill M/C. Or have you discounted that idea ?

I notice some clumsy oaf has poked holes in the cross-vice....

Dave BC

doubleboost · « **Reply #5 on:** December 05, 2010, 03:52:53 PM »

Very nice

That weld looks a bit pourous

Bluechip · « **Reply #6 on:** December 05, 2010, 04:01:14 PM »

Quote from: doubleboost on December 05, 2010, 03:52:53 PM

Very nice
That weld looks a bit pourous

Not porous John, bit of fag-ash in it for reinforcing ...

Dave BC

Rob.Wilson · « **Reply #7 on:** December 05, 2010, 04:04:44 PM »

Quote from: Bluechip on December 05, 2010, 03:52:29 PM

Hi Rob

Nice idea.. would it not be easier to make a two-piece clamp? No need to dismantle the drill M/C. Or have you discounted that idea ?

I notice some clumsy oaf has poked holes in the cross-vice....

Dave BC

Dave ,,,,,,,,,, i will sharp remove the head ,,, well this lanky bloke i no will

John

him taller than me

Hole'ssssssss,,,,,, wonder who did that

Rob

doubleboost · « **Reply #8 on:** December 05, 2010, 04:04:52 PM »

I do like a nice weld

Bluechip · « **Reply #9 on:** December 05, 2010, 04:14:13 PM »

[/quote]

Hole'ssssssss,,,,,, wonder who did that

Rob
[/quote]

Yeah .... I did wonder .... but not for long ....

Dave BC

Jonny · « **Reply #10 on:** December 05, 2010, 05:31:34 PM »

Take no notice of them, i would have tacked it to the table

Dean W · « **Reply #11 on:** December 05, 2010, 06:27:01 PM »

Crikey.. do you think it will be sturdy enough, Rob? Looks like a con-rod for the QE-2!
Guess it will be okay if you are only tapping small holes, like 1"-8 tpi. If it's not stout enough
you could always put a platter on it for a swing-out hors d oeuvres server.

You go, Mister! (and I didn't see no stinkin' holes..)

John Stevenson · « **Reply #12 on:** December 05, 2010, 06:58:40 PM »

Quote from: Brass_Machine on December 05, 2010, 03:07:50 PM

What did you weld it with?

Eric

Chewing gum by the looks of it.......................

scrapman · « **Reply #13 on:** December 05, 2010, 07:22:41 PM »

Looking good so far Rob

Ray.

Rob.Wilson · « **Reply #14 on:** December 06, 2010, 11:50:49 AM »

cheers lads

Rob

Rob.Wilson · « **Reply #15 on:** December 06, 2010, 03:33:30 PM »

Thought it was still under engineered for 14 BA so i welded some extra bits on

Into the furnace for a bit of a warm up ,,,

it can stay there for now,,,,, until tomorrow to cool down slowly and ~~normalize~~ stress relief

Rob

Blade · « **Reply #16 on:** December 06, 2010, 03:51:56 PM »

That is coming out very nice!

arnoldb · « **Reply #17 on:** December 06, 2010, 04:08:59 PM »

Great going Rob

Good to see you got the shop defrosted enough to get back in there

With the furnace started, things should heat up a whole lot more

Are you going to beef up the ped/drill's column and base to cope with the forces of those 14BAs ?

Cracking job as usual mate

Kind regards, Arnold

doubleboost · « **Reply #18 on:** December 06, 2010, 04:18:53 PM »

It would be a good idea to make 2
One for each side to stop it from tipping over

Artie · « **Reply #19 on:** December 07, 2010, 05:28:45 AM »

oh...all de funny mens....... mate, looks great.... if a tad over engineered.... jesus bloke! How large are ya gonna tap?

As always the stuff coming R W Engine Works is first rate.... you do keep the bar right up there fella.... great work....

andyf · « **Reply #20 on:** December 07, 2010, 06:23:27 AM »

Looks like it's going to be a really useful piece of kit. The arm is pretty long, and the beefiness will certainly give it rigidity. So, unlike many puny tapping stands, you will be able to tap holes a long way in from the edge of the material. Great job.

Andy

raynerd · « **Reply #21 on:** December 07, 2010, 07:01:51 AM »

Looks spot on Rob. Could you explain why it goes in to the furnace?

Stilldrillin · « **Reply #22 on:** December 07, 2010, 08:36:31 AM »

Top notch engineering Rob!

Can you bring a little of that heat down here, for my shop? Getting just a little bored with looking at wallpaper/ tele etc.....

David D

Rob.Wilson · « **Reply #23 on:** December 07, 2010, 10:37:12 AM »

Quote from: craynerd on December 07, 2010, 07:01:51 AM

Looks spot on Rob. Could you explain why it goes in to the furnace?

Hi Chris

The part was stuck in the furnace so that i could get rid of any internal stresses in the welded part that may have built up due to welding.

Over time the internal stresses can cause the part to move ,, they can also come out when machining operations are carried out .Just like when you machine more off one side of length of bright mild steel flat bar

So it was placed in the furnace brought up to heat and left to soak a heat for 1/2 an hour (rule of thumb for soak time is 1 hour per inch of thickness ) then left to cool down very slowly .

Rob

Rob.Wilson · « **Reply #24 on:** December 07, 2010, 12:56:34 PM »

Hi Lads ,,,,,,,,,,,,

your comments are killing me

Well its cooled down now and i have given it a quick blast to remove the black scale ,, some shots of it clean with a couple of every day shop tools in for scale

I will start machining it the morn (tomorrow)

David : furnace is to well insulated ,,, you have to get in it to feel the heat

Rob

raynerd · « **Reply #25 on:** December 07, 2010, 01:43:22 PM »

Nice one Rob - thanks for the info, I didn`t know any of that!

Chris

Gerhard Olivier · « **Reply #26 on:** December 07, 2010, 02:08:31 PM »

Nice job so far Rob

Right up there with everything else you have made

Gerhard

doubleboost · « **Reply #27 on:** December 07, 2010, 04:53:40 PM »

Any one like to have a guess at the spanner size

sbwhart · « **Reply #28 on:** December 07, 2010, 05:04:31 PM »

Quote from: doubleboost on December 07, 2010, 04:53:40 PM

Any one like to have a guess at the spanner size

Its what we use to call an hospital spanner, if its slips your in hospital.

]

Stew

Bluechip · « **Reply #29 on:** December 07, 2010, 05:53:48 PM »

Quote from: doubleboost on December 07, 2010, 04:53:40 PM

Any one like to have a guess at the spanner size

OK ... I'll bite. Why not.

2 1/4" BSF or 2" BSF

Have I won owt ??? LH Drive Allen Key? Stick of Geordie rock with 'We shall have a fishy' all the way through it ??

Nah, not be that, more than four letters ...

Dave BC

John Stevenson · « **Reply #30 on:** December 07, 2010, 06:41:15 PM »

Quote from: Bluechip on December 07, 2010, 05:53:48 PM

Have I won owt ??? LH Drive Allen Key? Stick of Geordie rock with 'We shall have a fishy' all the way through it ??

Nah, not be that, more than four letters ...

Dave BC

You are thinking of the Ozzies, Castlemain XXXX is so called because they can't spell beer..............

John S.

Artie · « **Reply #31 on:** December 07, 2010, 11:36:07 PM »

Quote from: John Stevenson on December 07, 2010, 06:41:15 PM

You are thinking of the Ozzies, Castlemain XXXX is so called because they can't spell beer..............

John S.

Only the Northeners John, only the northeners.....

Ned Ludd · « **Reply #32 on:** December 08, 2010, 08:06:17 AM »

Hi JohnS, Also called 4X 'coz they can't count either, "lager" has five letters!

Ned
PS is today "Knock the Colonials Day", as it is not listed as such in my Noddy's book of special days.

Serveta150 · « **Reply #33 on:** December 11, 2010, 01:08:03 PM »

Hi Rob,

I noticed your 3d Model at the beginning of your Topic. Which CAD package did you use, I was wondering? Regards, Paul

Rob.Wilson · « **Reply #34 on:** December 15, 2010, 02:42:14 PM »

Hi Paul

The 3D model was done in Solidworks

Been a bit slow in the shop over the past few days ,not allot done ,, mounted the arm to the mill table ,,, making sure that it was nice and level and making sure it was clamped evenly , so that it was not distorted by the clamping ,,,that would be no good as when the clamping force was removed the bores would come out all to cock .

facing the underside so that its square to the bore

Cheers Rob

arnoldb · « **Reply #35 on:** December 15, 2010, 04:34:28 PM »

Well done Rob

; Glad you got some shop time

, Arnold

....I'll have to get or make myself some of those (01-10-11)₂ blocks; they seem right nifty for a clamp-down!

Rob.Wilson · « **Reply #36 on:** December 15, 2010, 04:48:49 PM »

Quote from: arnoldb on December 15, 2010, 04:34:28 PM

....I'll have to get or make myself some of those (01-10-11)₂ blocks; they seem right nifty for a clamp-down!

I can see i am not going to here the last about the size of this thing

love it

Rob

Spanner size 65mm and 70 mm ,,,,,,,,,,,, adjustable spanner 600mm long ,, Dave ,,,,,,,,,,,, close

Dean W · « **Reply #37 on:** December 15, 2010, 08:44:10 PM »

I think I need to build something like this one day, but when I do, I'm not going to fiddle about with one of
these puny jobs like you're showing us here, Rob. I wanna be able to sit on it, too.

Quote from: Rob.Wilson on December 15, 2010, 04:48:49 PM

I can see i am not going to here the last about the size of this thing
Rob

No, s'pose not!

Gerhard Olivier · « **Reply #38 on:** December 16, 2010, 03:32:37 AM »

Rob please explain how you faced the edge with a boring tool???

Or am I just misunderstanding?

Gerhard

Rob.Wilson · « **Reply #39 on:** December 16, 2010, 02:49:54 PM »

Hi Dean

Hi Gerhard

No your not missing something ,,, i should have said the i used a boring and facing head to do the job

, my B/H has the capability to face off the job , cut grooves and do under cutting and tapered bores

You attach a bar to the feed ring witch you keep hold of and the head feeds in/out until it hits the stop , witch cuts the feed ,, also fitted with rapid return

Rob

Gerhard Olivier · « **Reply #40 on:** December 17, 2010, 09:30:03 AM »

Thats very handy

Thanks for explaining

Gerhard

Rob.Wilson · « **Reply #41 on:** December 24, 2010, 03:39:48 PM »

Hi Lads

Grabbed a bit of shop time today

here is were i am up to , split the large end and drilled and tapped

And a quick try for size on the drill

I still have to make a bushing for the small end and the rest of the attachments

Rob

Stilldrillin · « **Reply #42 on:** December 24, 2010, 03:58:59 PM »

Hmmm......

ROBUST.

I think that's the word, Rob!

Looking really good mate. In a stoutly built sort of way.......

David D

doubleboost · « **Reply #43 on:** December 24, 2010, 05:18:17 PM »

Very nice Rob

Are you going to box the webs in just in case it starts to flex

John

Rob.Wilson · « **Reply #44 on:** December 25, 2010, 05:12:49 AM »

INDUSTRIAL

Is how i would describe it

Rob

scrapman · « **Reply #45 on:** December 25, 2010, 07:43:55 AM »

Looks great rob

.

Ray.

Rob.Wilson · « **Reply #46 on:** December 25, 2010, 09:08:07 AM »

Cheers

Ray

May get a bit more done today ,,,,,,,,, if i can escape to the shop

Rob

arnoldb · « **Reply #47 on:** December 26, 2010, 12:57:47 PM »

Nice Job Rob

- yes; "industrial" should cover it...

You're in a bit of a sticky position now... What colour are you going to paint it ? - I know you have gray, but on a green DP

?

, Arnold

Dean W · « **Reply #48 on:** December 26, 2010, 06:54:38 PM »

Bulletproof is how I'd put it, Rob. Looks great!

slowcoach · « **Reply #49 on:** December 27, 2010, 06:26:57 AM »

Good job you've done on that Rob W

, very robust

lovely welds

Rob

mhh · « **Reply #50 on:** December 27, 2010, 06:55:02 AM »

Great idea! and it looks really nice! Another project for the list!

John Stevenson · « **Reply #51 on:** December 27, 2010, 07:03:08 AM »

Quote from: Rob.Wilson on December 24, 2010, 03:39:48 PM

Hi Lads

And a quick try for size on the drill

I still have to make a bushing for the small end and the rest of the attachments

Rob

Rob,
Silly question but why not lift the table off, make a bushing for where the table spigot goes and use that arm, put the vise on the base table ? Don't apply now as you have made it but others could do this without making a new arm when most bench drills already have one

John S.

Rob.Wilson · « **Reply #52 on:** December 27, 2010, 07:32:09 AM »

TWAT

,,,,,,,,, now why did i not think about that John

BS excuses ,,,,,,,,,,, no welding/ prating about involved

Rob

John Stevenson · « **Reply #53 on:** December 27, 2010, 07:39:51 AM »

Quote from: Rob.Wilson on December 27, 2010, 07:32:09 AM

TWAT ,,,,,,,,, now why did i not think about that John

Rob

Because you are a TWAT ??

Rob.Wilson · « **Reply #54 on:** December 27, 2010, 07:42:12 AM »

cheers John

Rob

Stilldrillin · « **Reply #55 on:** December 27, 2010, 12:51:54 PM »

Whoops!

David D

Ned Ludd · « **Reply #56 on:** December 27, 2010, 02:51:11 PM »

Trust John to simplify things to their simplest elements.

and again

ned

stefang · « **Reply #57 on:** December 27, 2010, 08:56:55 PM »

Yours looks better and is certain more stable

Great work!

Stefan

slowcoach · « **Reply #58 on:** December 28, 2010, 11:32:01 AM »

Artie · « **Reply #59 on:** December 31, 2010, 06:42:20 PM »

This is soooooo much fun... a bit like the Benny Hill show...... I do like the thing Rob, John, I like your idea very much as well.... so much in fact......

andyf · « **Reply #60 on:** January 13, 2011, 08:45:32 AM »

Hi Rob,

I’m not sure if you already have a chuck to use in your tapping attachment. If not, you might be interested in the cunning geometry of this type: http://mikesworkshop.weebly.com/improved-chuck-for-taps.html

Of course, things might have to be scaled down a bit to fit your dainty attachment

Andy

Rob.Wilson · « **Reply #61 on:** January 13, 2011, 03:32:59 PM »

Quote from: andyf on January 13, 2011, 08:45:32 AM

Of course, things might have to be scaled down a bit to fit your dainty attachment

Andy

hi Andy ,,,,,,,,,,,,,,,

thats is just the sort of idea i have been looking for

Rob

Edit ,,,,,,,,,,, i had the very artical sitting not two foot away

News:

Author Topic: Knocking one off the list ,,, Tapping attachment (Read 30594 times)

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