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Author Topic: 1/16 scratched drill press  (Read 37683 times)
lab-dad
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« Reply #45 on: April 13, 2012, 06:01:39 AM »

Yes Dallas, turned all the handles.
I do them on the lathe with files and set up gauges, especially the double ended one that needed to be the same on each end.
Thanks!
-Marty
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TRAINS1941
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« Reply #46 on: April 13, 2012, 12:22:54 PM »

-MJ

Just keeps getting better and better.

Jerry
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« Reply #47 on: April 14, 2012, 06:04:52 AM »

You only need to make the gears work once, video it happening, and then post it on You Tube, and then you can retire them for life... it's what all the cool kids are doing these days  Grin

This is really a great pice.  I was completely thrown off track when I saw your gear frame cut out... until I went back and understood that you were not going with the Camelback as shown in the first photos but the one in the kit example.  I was trying to cypher out how you were going to get that fiddle shape out of those parallel lines... "reading is fundamental"  Roll Eyes

While it looks beautiful, the fact that all of the bits traverse, elevate and turn is really, really impressive.  I doff my cap to you, sir.
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Paul

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lab-dad
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« Reply #48 on: April 15, 2012, 04:56:46 PM »

Thanks Jerry & Paul.
Working in this scale i feel I "have" to make it is operational as possible.
I will look into the youtube stuff...
For now I managed to get the operational lever (I think) finished.
The lever causes the lower gears to mesh with the upper, basically turning the drill on and off.
While simple in appearance it was not quite...
The upper mount for the lever was fairly straightforward;
Drill a length of .125" tube and thread/solder in a 00-80 threaded rod.
The lower pivot was a little more work.
You see the large gear on the right must attach to the shaft to drive the smaller gear on the left.
However the collar with the stud (same as above) must allow the shaft to spin inside - just like above.
But, there must be a stop opposite the gear so the lever moves the gears (and shaft) in and out of mesh.
FWIW the lever is a piece of .093 brass rod.





I guess now I have to do the darn stepped pulleys...........
-Marty

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Malachi Constant
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« Reply #49 on: April 15, 2012, 05:57:16 PM »

Oh hum ... more insane detail with tricky little bits.  Wink
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finescalerr
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« Reply #50 on: April 16, 2012, 01:58:40 AM »

Nonetheless satisfactory. -- Russ
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michael mott
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« Reply #51 on: April 18, 2012, 12:06:42 AM »

So is this thing actually going to drill holes or wot?

Beautiful work Marty.

Michael
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lab-dad
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« Reply #52 on: April 18, 2012, 06:04:31 AM »

Quote
So is this thing actually going to drill holes or wot?

Well that is the plan - sort of...
I am going to "chuck" a 1/16 bit in it when complete and hopefully spin the pulleys and drill a hole in a piece of wood.
That will be where the rubber meets the road.
Theoretically it should work and then I can say it is fully operational.
Will see if I can do the youtube ting with that too.......

Thank you!
-Marty
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lab-dad
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« Reply #53 on: April 18, 2012, 02:58:35 PM »

Today was a good day; Grin





Largest pulley is .875" then .750" then .625" and smallest .500"
Time for a drink! Wink
-Marty
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michael mott
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« Reply #54 on: April 18, 2012, 04:19:17 PM »

Vera Nize!

Michael
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Ray Dunakin
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« Reply #55 on: April 18, 2012, 06:38:49 PM »

Looking good, as usual.
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Gordon Ferguson
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« Reply #56 on: April 19, 2012, 02:20:00 AM »

Marty , nice work ................. always enjoy looking at your stuff

? why did you do all the pulleys as separate parts, would it not be easier and more prototypical just to have a stepped one piece


I know you just liked the challenge of producing exquisite small parts  Cheesy 
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Gordon
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« Reply #57 on: April 19, 2012, 02:27:09 AM »

Satisfactory. You really do have a talent for metal work. -- Russ
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chester
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« Reply #58 on: April 19, 2012, 06:46:24 AM »

Making it look plausible, very good. Making it work, astounding. Nice job so far Marty.
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lab-dad
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« Reply #59 on: April 19, 2012, 09:16:42 AM »

Thanks Guys!!!!!

Gordon,
Good question!
On several prototype pictures i noticed the pulleys (or big one) being somewhat hollow, and "appearing" to be separate.
I have no way of really knowing if they were one piece or four - like mine.
In the overall scene it made sense to me to do it in 4 pieces for less material and time.
Turning down a piece of .875" aluminum rod would have taken a lot more time and the possibility of error.
As it was I did the large ones fancy and just sliced off the rest from appropriate sized stock and rounded them.
Hope this explains my logic.....
-Marty
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     Martin G. Jones Photography
    Go not where the path leads
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