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Thread: Waldown High Speed
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2nd September 2013, 08:51 AM #16.
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2nd September 2013, 09:45 AM #17SENIOR MEMBER
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2nd September 2013, 11:48 AM #18GOLD MEMBER
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2nd September 2013, 12:46 PM #19
Your'e right Rob, The spindle pulley can only go one way, which means it's the motor pulley that has to be flipped...
DSCN3405s.JPG
Correct again Stuart, the motor pulley flips for the different speeds.
So the high speed 12K configuration will look like so...
DSCN3406s.JPG
I hope that makes sense.
Regards
Ray
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2nd September 2013, 01:03 PM #20
Now the VERY long belt guard also makes sense.
Cheers,
Joe
9"thicknesser/planer, 12" bench saw, 2Hp Dusty, 5/8" Drill press, 10" Makita drop saw, 2Hp Makita outer, the usual power tools and carpentry hand tools...
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2nd September 2013, 01:20 PM #21SENIOR MEMBER
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It's interesting that they use a similar fabric type flat belt as used on my Waldown TPG.
I can't see that taking heavy loads, but maybe it can.
I'm surprised they use that setup instead of a "V" belt.
RobThe worst that can happen is you will fail.
But at least you tried.
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2nd September 2013, 01:25 PM #22
Here are some (poor) photos of my Waldown Type NH with 'flat' foot, separate table and fixed head.
You can see where I scratched some grey paint off. It came from the Bendigo Ordinance Factory (a long time ago).Cheers,
Joe
9"thicknesser/planer, 12" bench saw, 2Hp Dusty, 5/8" Drill press, 10" Makita drop saw, 2Hp Makita outer, the usual power tools and carpentry hand tools...
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2nd September 2013, 06:19 PM #23Member
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- Dec 2008
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- Melbourne
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Herbert made one too....
Hello Waldown NH owners,
I have a Herbert Type B high speed drill, not quite a twin to the Waldown NH but they probably were close friends at school. As bought from Wallan, Victoria, mine is 3 phase, set to do 18,000rpm only and is complete with a Herbert collet nose and collet nut. On mine the small pulley on the drill spindle is only 30mm or so diameter and is non metallic. I am going to start a renovation of the machine with modern electrics, a VSD and a change to the front flat pulley to make it a stepped item and give a slower range of speeds. I want to retain the top speed but will reduce the lowest speed from 9000rpm to 4500rpm so i can drill up to 3mm in brass for larger clock bushes. Mine is fitted with an explosion proof continuously rated .33hp motor that is star + delta wound so VSD is easy.
The challenge I have is to economically renovate this machine (or any other for that matter) and find collets, so if anyone has some weird little collets and dont know what they are, let me know.
I have options, I could modify say a MT-0 to JT-0 arbor so it will fit the female collet form or modify the nose so it takes horological collets which are easy to find or make it a MT-0 for a standard 4mm drill chuck. The issue is maintaining truth and balance from 4,500rpm to 18,000rpm if i touch the quill with machine tools.
Good luck with the restoration, i will appreciate your progress as I face a number of challenges with a very similar high quality drill (hopefully photo in the back of the car below)
regards mgtoolmaker
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20th February 2015, 10:01 PM #24Senior Member
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I hope to pick up this NH next week if all goes to plan. I'm not sure if it is a MkIII or IV or whatever but going by some of the details in this thread I would say that it is not a really early version.
Attachment 340444
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21st February 2015, 10:53 AM #25
Hi Techo,
Thanks for the pdf, good stuff... but something is wrong with the other attachment? I just get a message saying "invalid attachment"
Ray
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27th February 2015, 01:51 PM #26Senior Member
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Sorry Ray, I missed your reply a few days ago but I have no idea as to why you can't see the picture, I am not real good at posting photos etc and I am surprised that PDF showed up at all.
Lex.
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6th March 2015, 06:03 PM #27GOLD MEMBER
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Ok i have softened.....black with gold leaf just doesnt seem appropriate for such a classic drill press
What colour are you all using for the waldown colour match...what code?
I would like to use killrust and/or is dulux metalshield premium just as good
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6th March 2015, 07:20 PM #28Philomath in training
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Looking at my 9 year old Kilrust colour chart, the blue of my Waldown is closest to "Navigator". "Ocean" is a little darker again. The next blue lighter is Wedgewood but that is the colour I painted my lathe and it's lighter than the chart. The exact colour is probably not as critical as Waldown seem to vary their colours a bit more than most.
Michael