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[mattinker]

Thanks Northumbrian,
 I'm glad you enjoyed it! I'm on the last leg now, I'm looking forward to getting on to using it!

Glad you enjoyed it, regards, Matthew

[Mayhem]

Thanks for the update Matthew - this project turned out very nice.

In response to your question: I don't think there is such a thing as "too much detail".

[NeoTech]

After watching two of these threads i kinda had an.    moment.. These bases and the banjo is a really good candidate for a stepper motor conversion and using a arduin for controlling the divides, geared properly and the stepper would have all the sufficient holding power it ever needs.

[mattinker]

Neo Tech,

I agree with you, the only thing I would change is the gears, drive it using toothed belts to eliminate backlash. With the lock set up as it is, the spindle is locked.

Don't stop thinking about the idea!

Regards, Matthew

[Its Me]

mattinker, WOW you good and that sure is a lot of work, now I am going to the tube to see, Its Me

[mattinker]

Hi It's Me,

Thanks for the complement!

Hi everybody,

well, life has been getting in the way, so it's taken a bit of time to get back to you.

The remaining parts are the layshafts and the keyed bushes that carry two gears, locking them together. I've made these in to fit the Emco banjo, so that the two other sets of gears that I have will work there as well. This means that I have amongst other things, the 127 tooth gear for inch threads that I can now use.

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I needed two lay-shafts to mount the change gears on the banjo. A piece of cold rolled was reduced to 12mm in diameter a little shorter than the thickness of the banjo.

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Drilled 6.75, to tap M8.

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Tapped M8

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Test fit on the banjo.

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I reduced the outside diameter to make it look nicer!

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I drilled the gear side 5mm, tapping size for M6.

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tapped M6.

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Completed and in position. The large gear is mounted on the other lay-shaft using the sindle and keyed bush from the Emco.

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A piece of cold rolled, reduced to 6mm to thread M6.

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Reduced to 10mm over 16.5mm, two gear thickness’s, with a little clearance.

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Threaded to M6

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Test fit.

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Rather than thread and add a nut, I decided to make a built in button.

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The button.

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Test fit.

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In order to couple two change gears together on a lay spindle, I needed to make keyed bushes. The key needs to be brazed onto the bushes, especially the 12mm ones as the bus is only 1mm wall. In the chuck I have a piece of cold rolled, turned to 14 and 12mm Øs this is going to make two 14mm bushes and two 12/14 stepped bushes.

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Test 12mm plastic gear.

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Test 14mm gear.

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Milling the key way.

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Key ways cut, one of the complications is that the 14mm gears have 4mm wide keys, whereas the 12 and 16mm ones have 3mm wide ones.

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Key brazed in place.

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Milling the key down to fit.

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Test fit 12mm and 14mm.

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2 14mm and 2 stepped bushes before drilling out to 10mm.

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Finished 12/14mm bush.

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Test 12/14mm bush.

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The complete full set of bushes.

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In the end, I decided to make buttons for all of the shaft ends, I only need one Allen key to make any combination of gear changes.

I learnt a lot on this project, my surface finish on the lathe has greatly improved. I found milling the 3 and 4mm key ways with a 2mm mill a little hairy to say the least but the mill was very docile and precise!

I'm really glad to have finished this !

Regards, Matthew

[millwright]

Ive followed it all the way through Matthew, enjoyed your build and pics, very clear and infomative. A nice useful piece of eqipment you now have, Well done 
John

[awemawson]

Very nice Matthew 

It must be immensely satisfying to get to the end of the project - now you can start using it 

Andrew

[doubleboost]

Very nice Mathew
It was good to see how we made the same thing with different methods
John

[mattinker]

Thanks guys,

thanks for the kind remarks, it's been satisfying and interesting build. Now to move on to using it!

John, I found the differences interesting as they came about for material reasons, lathe size, spindle nose and experience!

Thanks again, regards, Matthew

[tom osselton]

I've enjoyed following your build it's a beaut!

[Mayhem]

Well done Matthew - I've enjoyed this project.

[mattinker]

Tom, Mayham,

I'm glad you enjoyed the project, I had a good time doing it and I'm looking forward to using it!

Regards,  Matthew.

[Fredbare]

Excellent work Mathew, very informative, its been a great watch, thank you.

John

[ieezitin]

Mathew.

very good. I liked your amount of pictures you furnished in your blogs, very informative. i like the whole finish of your build, the buttons especially very attractive.

i think you have made a quality tool that will when passed down will be appreciated for the hard work and attention to detail that it deserves.

thank you for taking the time in showing us your work.

Anthony..

[mattinker]

John and Anthony,
I'm touched by the positive remarks, it's hard to know how many photos to put in and whether one is being repetitive or informative. I certainly got a lot out of doing this build.

Thanks again, regards, Matthew

[nel2lar]

Matt
Fantastic piece of work. Love the knobs for your gear train. I think that same knob would look better on your indexing pin. Top-Shelf
Nelson Collar

[mattinker]

Thanks Nelson,

an interesting idea, but its not the same action, lift and turn as opposed to screwing up tight. I've got to the point where I need to use it so I'll see how it all functions in use! I'm getting ready to make some gears, but progress is slow.

Thanks for the complement, regards, Matthew

[Pete49]

   Great job Matt. Enjoyed the write upas well
Pete

[mattinker]

Thanks Pete!

[krv3000]

well dun 100% 

[mattinker]

Thanks Bob,

it's nice to finish it!

Regards, Matthew

[Pete49]

Love the finish on it. It seems that Ali is more than suitable for this type of tool. Mine is steel weldment and looks crappy next to yours and DB's efforts. Maybe I'll paint it and hide it in a corner . Just joking.
pete

[mattinker]

Thanks Pete,
it's pretty photogenic! In the flesh, the defects show up more!!

Regards, Matthew

[nel2lar]

Matt
Just like the ball, you pinch it and pull. The spring is not that strong, is it? I was just thinking it would look good having all the same kind of knobs.
Again a very nice build.
Nelson Collar