What did you do Today 2018

[Sam Longley 1Participant @samlongley1]

My first thought was that it was a key for unlocking a chastity belt

How much tension are you expecting to put on that dress??

Are you selling her? does the poor bloke know what he is buying?

Have you made a tool for safely letting it all out or will they press a button & it all goes with a massive twang!!!!?

 

Edited By Sam Longley 1 on 01/11/2018 18:31:11

[mechman48Participant @mechman48]

Mother of bride has arthritis in fingers… just to help manipulating buttons … if need be

Geo.

[Alan Waddington 2Participant @alanwaddington2]

Cleaned out the surface grinder oil tank…….. Reckon it might have been just a tad overdue!

[GoCreateParticipant @gocreate]

Not today but earlier in the week I made some exhaust adapters for a 1959 Triumph 5T motor bike being restored locally, I nice pleasurable turning job apart from them being in 316 st st. I was amazed when they fitted the cylinder head perfectly. Plus I made a short video of the process.

Nigel

[Anthony KnightsParticipant @anthonyknights16741]

I've been out of hospital for three months now and still have difficulty standing for any length of time.I therefore chose a project which involved a minimum of standing and with the aid of a tube of thread locking compound I've finished it today. Not original I know but it's a chess set made from nuts and bolts. Now, where is that chess board?

[JasonBModerator @jasonb]

Very nicely done, will you be making the board from chequer plate

Edited By JasonB on 04/11/2018 16:15:16

[Neil WyattModerator @neilwyatt]

Nice one Anthony. The knights are ingenious!

Someone will be along in a minute to ask exactly which grade of thread locker you used

Neil

[Mark RandParticipant @markrand96270]

That's really rather special. Thank you for sharing that.

[EmgeeParticipant @emgee]

Anthony, are the black pieces chemically blackened ?

If so with which product.

Emgee

[OldironParticipant @oldiron]

Very nice job. Very innovative.

regards

[larry phelan 1Participant @larryphelan1]

After all that,what did I do To day ? Not a lot,cut a few more blanks to use for making gears for which I have no real use,but it,s raining ,so what else is there to do ?

[Brian HParticipant @brianh50089]

Posted by Anthony Knights on 04/11/2018 15:52:28:

I've been out of hospital for three months now and still have difficulty standing for any length of time.I therefore chose a project which involved a minimum of standing and with the aid of a tube of thread locking compound I've finished it today. Not original I know but it's a chess set made from nuts and bolts. Now, where is that chess board?

I for one, thought that this was excellent.

Brian

[jimmy bParticipant @jimmyb]

Used my Hemingway wobble broach today, with great results!

I made the kit last year, used one broach and than put it away! I needed to broach an 8mm hex in some stainless today. Very impressed with the results I must say (once I'd managed to stop the tailstock "walking" back under whilst cutting the broach.

Jim

[Mark RandParticipant @markrand96270]

Drilled and tapped a hole in the top of the milling machine ram for an eye bolt. Lifting the ram off is now a far less scary procedure.

 

Edited By Mark Rand on 04/11/2018 20:46:37

[Jon LawesParticipant @jonlawes51698]

Posted by jimmy b on 04/11/2018 19:39:28:

Used my Hemingway wobble broach today, with great results!

I made the kit last year, used one broach and than put it away! I needed to broach an 8mm hex in some stainless today. Very impressed with the results I must say (once I'd managed to stop the tailstock "walking" back under whilst cutting the broach

I wouldn't have the first clue how to do that! Is it like cutting a keyway?

[Paul LousickParticipant @paullousick59116]

Jon,

Google "rotary broach". Lots of examples on the net also DIY versions to make yourself.

How Rotary Broaching Works

[Anthony KnightsParticipant @anthonyknights16741]

Hi Emgee. The black pieces were given the heat red hot and dunk in old vegetable oil treatment. The nuts and bolts were bright zinc plated, which had to be removed with hydrochloric acid (B&Q brick cleaner) for the blackening to work.

[CirclipParticipant @circlip]

Nigel, Triumph 5T adaptors, Is the head normally threaded or did that have to be done too? Venom Clubman has a pushed in spigot (REALLY bad idea).

Regards Ian.

[RobinParticipant @robin]

After having to find a torch to read the jaw numbers in my lathe chuck on Saturday, today I replaced all the flourescent tubes and starters in the workshop. Cost me 50 quid and now I'm thinking I might need to buy some sun glasses to make it habitable

[Mike PooleParticipant @mikepoole82104]

Posted by Robin on 05/11/2018 11:33:48:

After having to find a torch to read the jaw numbers in my lathe chuck on Saturday, today I replaced all the flourescent tubes and starters in the workshop. Cost me 50 quid and now I'm thinking I might need to buy some sun glasses to make it habitable

Unfortunately the transformation wears off all too quickly, the fall off in performance is like boiling a frog, one day you just think is it my eyes or the lights. Always remember to take a torch to a restaurant if you would like to know what is on the menu or the bill.

Mike

[EmgeeParticipant @emgee]

Posted by Anthony Knights on 05/11/2018 02:23:34:

Hi Emgee. The black pieces were given the heat red hot and dunk in old vegetable oil treatment. The nuts and bolts were bright zinc plated, which had to be removed with hydrochloric acid (B&Q brick cleaner) for the blackening to work.

Thanks for the info Anthony.

Emgee

[RobinParticipant @robin]

Posted by Mike Poole on 05/11/2018 12:16:42:

Unfortunately the transformation wears off all too quickly, the fall off in performance is like boiling a frog,

But it is glorious, if it lasts for a week then I will count it as money well spent

[Joseph Noci 1Participant @josephnoci1]

The Stepper addition to my EMCO rotary table went well as seen in my various post, but as usual when pushing the envelope with steppers, high rpm and harmonic vibrations are a problem. Not wishing to try find a DSP type stepper driver with active harmonic control ( such as Gecko, etc) I went mechanical..A Rattle harmonic damper, and was most pleasantly surprised. Since the Rotary table's intended use was as a synchronised gear blank drive on a gear hobber, the table's speed is related to spindle ( hob) speed. In my case, the stepper drives the table with a 40:1 ratio.

So, for example, if the Hob spins at 370RPM ( a midrange speed on my mill spindle), and we are cutting a 14 tooth gear with a pitch of 2.5mm, the stepper must spin at approx 1060 rpm – not easy to achieve with the table inertia, friction, etc.

I got close to this by playing with stepper driver voltage, up to 60 volts, and current, but the 370rpm setting was simply not possible. I made up a simple damper, as in the photos, and it works so well that I can even reduce the supply voltage down to 40v with no stall or loss of steps.

I made a rather miserable video, but it gets the idea across..

The wheel is 60mm OD, 20mm thick aluminium. The slugs are 10mm OD, 18mm long, mild steel.

The holes are 11mm ID.

 

I just covered the slugs with masking tape for the tests..

 

This shows the damper wheel mounting position.

The three speeds at which I tested the damper – 120rpm, 200rpm, 370rpm.

 

The video…Sorry, the start seems a bit mucked up..

I did three tests, first with the damper at the three speeds, then with the wheel but without the slugs, then with the wheel completely removed and then the 120 and 200 rpm speeds still work ( 200 does stall once in a while..) but the 370 does not work at all. At 40v supply even the 200 RPM speed fails without the wheel/damper

 

Joe

Edited By Joseph Noci 1 on 07/11/2018 16:58:31

[Mick B1Participant @mickb1]

Walked past the 8F under rebuild in the shed yesterday, and saw this staring out at me:-

… and I'd thought Hallowe'en was over…

[Mark RandParticipant @markrand96270]

How does that work Joseph?

[Author]

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