What Did You Do Today (2017)

[Nicholas FarrParticipant @nicholasfarr14254]

Hi, did this yesterday.

This is my 6" Vertex RT on my Cobra mill, with a Boxford backplate chuck adapter and index attachment, drilling the bolt holes in a Boxford backplate, to fit a 100mm TOS three jaw chuck. Had about 12mm of spare headroom on the mill head.

Backplate fitted to chuck. Just need to fit some rubber plugs or something similar, into the original Boxford chuck fixing holes, to stop swaf, dirt etc. ingress between the backplate and the chuck.

Regards Nick.

[WindyParticipant @windy30762]

It's been a long haul health wise the serious stuff started in February 2016 then complications.

The good news today after an endoscopy that was rather easy there is no trace of the malignant ulcer.

I think to relax is the best way with the endoscopy the first time is always a bit daunting but this was number three.

End of the month after a Pet Scan will know if Burkitt's Lymphoma has been put in remission.

There are other health problems to sort with the GP but one step at a time.

Personally think my healthy eating has helped in the demise of the ulcer I don't eat processed food and cook my own meals there is no spicy meals and very little acidy meals.

Only wholemeal bread, fish, chicken very little sweet food, plenty of fresh fruit and try to keep active mentally and when health allows exercise.

After this mornings pleasant surprise back to my heaven and wire worms production I’m just roughing out the crankshaft halves.

Will have to make a jig to eventually bore the big end holes a smaller version was made to do the model V Twin webs years ago.

The simple jig Wal Phillips had for aligning old Jap speedway crankshafts is similar to what I used on the model V twin.

Seeing I’m keeping off the alcohol metal munching has to take it’s place.

[Bob RodgersonParticipant @bobrodgerson97362]

Hi Windy,

I couldn't believe the method advocated by motorcycle manufacturers in the twenties of aligning the crankshaft journals and crank pin by beating them with a lead hammer and squeezing the flywheels. However with tapered end crankpins itv works well and it's surprising how rough you have to get. I've done a few.

[Neil WyattModerator @neilwyatt]

Ha! Beat it on a block of wood, squeeze in a vice and lever it open with a jemmy!

And that's just what they did to you in hospital…

Neil

[mechman48Participant @mechman48]

Modified my ally sub table; narrowed it slightly to give me more 'Y' travel & cleaned up the surface…

George.

[John Stevenson 1Participant @johnstevenson1]

You know Windy, you are an inspiration to us all, two days out of hospital and back in the workshop belting lumps out of metal again.

Your diet sounds OK and it will pay to keep at it. All too often we gradually creep into bad ways with snacks and foods that whilst being convenient are not good for us.

[Ed DuffnerParticipant @edduffner79357]

Did a small job today on the WM180 lathe (Saturday). Turned a couple of electrodes for a benchtop spot welder at work, using a very basic eccentric clamp in the 3-jaw chuck. These are 6.0mm dia copper bar with 5.0mm x 1.75mm dia tips. This is the second time I've sharpened these 'pencils'. Strange stuff to turn is copper!

…and a few days ago made a battery adaptor for an old film camera, a Yashica Electro 35G which originally used PX32 mercury batteries. Acetal and ally were turned for a press fit together and a slot cut (down the middle for once!) for easy extraction of any snug fitting 4LR44 batteries.

Ed.

[Speedy Builder5Participant @speedybuilder5]

Sliced up a couple of frozen venison joints on the bandsaw today. As the saw is only used for wood, and the meat casseroled afterwards, it usually turns out OK. Bit of a messy job cleaning up afterwards though!!
BobH

[Bodger BrianParticipant @bodgerbrian]

Posted by Speedy Builder5 on 05/03/2017 07:47:48:

Sliced up a couple of frozen venison joints on the bandsaw today. As the saw is only used for wood, and the meat casseroled afterwards, it usually turns out OK. Bit of a messy job cleaning up afterwards though!!
BobH

That reminds me of my first job at Alcan Labs back in the late '70s. Each year we'd receive a frozen turkey as part of a Christmas bonus and it would be my job to clean down the bandsaw before it was used by anyone who wanted their's cut in two (can't think why you want to do that but there you go). Strangely I don't recall cleaning it down afterwards!

Brian

[steve de24Participant @stevede2433577]

Ed

For finish cuts on copper have you tried a vertical shear tool? See 3:30 into this video.

**LINK**

Steve

[steve de24Participant @stevede2433577]

Ed

For finish cuts on copper have you tried a vertical shear tool? See 3:30 into this video.

**LINK**

Steve

[Iain DownsParticipant @iaindowns78295]

Today I finished off a wood lathe rest for my metal lathe (if you see what I mean).

In an earlier post someone suggested a trolley token as a 'thing' to make to impress her indoors. It actually did and now she wants samples for her friends.

The above is to make the handle for an engraving chisel. The samples so far have been engraved with a dremel which doesn't leave a nice finish.

Iain

[Anonymous]

I've just made my 3000th post on this forum. That's a lot of pants bored off a lot of people.

What I really did today will be described in a new thread, once I've had supper.

Andrew

[MikeParticipant @mike89748]

Andrew: You underestimate how much appreciated your contributions are. I, and I am sure very many others, find your posts very interesting, and certainly not boring. I'm just off for my pre-dinner bottle of real ale, and I'll drink a toast to your next 3,000!

[Richard MarksParticipant @richardmarks80868]

Posted by Scrumpy on 01/03/2017 14:49:21:

Have just finished a smoke generater so we can cold smoke bacon and fish

Bacon I did last month is gorgeous and today I have just put a trout in the cure which I will cold smoke on or about Thursday, I had to rethink my smoke generator and remade it out of mesh and it worked very well.

[Ed DuffnerParticipant @edduffner79357]

Posted by steve de24 on 05/03/2017 13:28:37:

Ed

For finish cuts on copper have you tried a vertical shear tool? See 3:30 into this video.

**LINK**

Steve

Hi, thanks Steve, I have tried a VS tool before, but unfortunately it wouldn't have worked on the geometry of those welder tips. The finish is ok for the purpose of the parts, at least to my eyes and flash photography usually enhances the appearance of machining as you may know.

Regards,
Ed.

[Anonymous]

Posted by Mike on 05/03/2017 17:38:52:

Andrew: You underestimate how much appreciated your contributions are. I, and I am sure very many others, find your posts very interesting, and certainly not boring. I'm just off for my pre-dinner bottle of real ale, and I'll drink a toast to your next 3,000!

Thanks Mike, it's always nice to feel appreciated. And I hope the beer went down well.

I try not to pontificate on subjects I don't know anything about. Although after a fracas a while back about FFTs I do my best to stay out of the electronics threads as well.

Andrew

[Nicholas FarrParticipant @nicholasfarr14254]

Hi, well today I started to make a backplate for my slim 6" four jaw chuck, so that I can mount it on my milling machine table. This is a bit of a challenge, as I need at least one dimension to be about 8" for the bolts that will hold it on the table to clear the chuck. The problem being that the biggest chuck I have will only hold 6" in diameter. I've had this cast iron disc, which is 9" in diameter and about 1" thick, which has four square holes at about 90 degrees to each other crudely cut into it and the inside edge of them is about 6" diameter. No idea what it was for, but on the side that has had machining, it has 17 lbs stamped on it. I'm just guessing it was a blacking plate for a pipe.

Here's where a light bulb moment came to me, but it would require a bit of work. First of all, three 8.5mm holes were drilled 120 degrees apart on a 60mm radius, to be able to fix it to my rotary table. It was then fixed and centred with a washer between the disc and table on each bolt. I then began milling the inside edge of each hole wide enough for the jaws of the biggest four jaw chuck to fit in.

Once these were all done, the milling machine table was moved to the left and each side of the holes where widened a bit more and when they were all satisfactory, the top of the disc was milled where the flats of the jaws make contact and a jaw was used to make sure all was good.

One of the holes that were used for holding the disc to the RT, came right in line with one of the square holes and I had to mill the top around this, but when all the milling was finished, this bolt was removed and the area around the hole was slightly undercut with the miller.

Next step was mounting the disc on the four jaw on the lathe.

Regards Nick.

Edited By Nicholas Farr on 12/03/2017 00:35:44

[Nicholas FarrParticipant @nicholasfarr14254]

Hi, my new backplate disc was mounted on my four jaw on my Boxford lathe, however the apron fouled part of the outside edge, so before I could face it up, I had to skim the outside edge using a boring bar to reach it, which made it a bit of a slow process, as only small cuts could be made due to the boring bar flexing, plus this as cast edge was a little tough to get through the skin and I had re-sharpen the tool a number of times to get through it. When the diameter was small enough for the lathe apron to pass, a normal tool was used to finish tidying up the edge to a true circular shape, which will make re-centring easier when machining the other side.

The first light facing of the disc, showed that it was quite flat and true.

A couple of more cuts across the face made a satisfactory finish and then approximately 70mm of the middle was very slightly undercut.

The disc is now ready to be flipped over in the four jaw, for facing and the register for the slim four jaw to be cut. one or two PCD's will also be marked for the holding down bolts on the table.

Regards Nick.

Edited By Nicholas Farr on 12/03/2017 01:27:07

[Thor 🇳🇴Participant @thor]

That's an elegant solution Nick.

Thor

[john carruthersParticipant @johncarruthers46255]

This morning I made up a prototype for an idler wheel to transfer motion from a telescope polar shaft to an encoder. Friction drive so no backlash.

[Ian S CParticipant @iansc]

I had a similar disc of cast iron that needed the hard edge knocked off, none of my tools would touch it, so I set the lathe going, and got stuck in with the 4 1/2" angle grinder (lathe all covered to keep the dust and grit away), 5 or 10 minutes of that and the skin was gone.

Ian S C

[Involute CurveParticipant @involutecurve]

Got up early this morning and machined these fork yokes for a mates Triumph, I should get them finished in the morning with a bit of luck………

 

 

 

Shaun

Edited By Involute Curve on 12/03/2017 15:28:46

[richardandtracyParticipant @richardandtracy]

Shaun,

You can't give them to your mate in that state. He'll be so fascinated by the machining marks, he won't ever look at the road…

Regards

Richard.

[Involute CurveParticipant @involutecurve]

Hiya Richard

I actually leave the machining marks on my own bikes parts because I like the look, I bet he polishes them out………….

[Author]

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