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28th August 2015, 03:57 PM
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The thread dies are tapered for feed in as per...
The thread dies are tapered for feed in as per any other die, but if you cut past an inch or so it will produce a parallel thread.
Also check out the internal thread on a tube or T connector (galv... -
28th August 2015, 01:33 PM
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Yes. Put a pressure gauge on your mains water...
Yes.
Put a pressure gauge on your mains water pipe supply and read it off.
Up the farm we get 160 psi in some paddocks and run pressure reducers to prevent float valve blow out.
Water... -
28th August 2015, 01:01 PM
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You do realize that main water pressure runs in...
You do realize that main water pressure runs in the region of 140 psi for most households, and can go as high as 160 psi if you're at the bottom of a hill coming off of a main feeder pipe.
So it... -
23rd August 2015, 09:48 PM
Thread: Kennametal holder
by nearnexus- Replies
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+1
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23rd August 2015, 08:08 PM
Thread: Kennametal holder
by nearnexus- Replies
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TCMT are good little inserts, and that finish is...
TCMT are good little inserts, and that finish is about average. Keep the speed up for best results.
With 1080 or similar good machining steel the finish will be mirror quality, provided you take... -
23rd August 2015, 11:15 AM
Thread: Kennametal holder
by nearnexus- Replies
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It's run of the mill TCMT. The insert in the...
It's run of the mill TCMT. The insert in the photo is positive rake and has a chip breaker.
Negative rake TCMT generally don't have a chip breaker and the insert mount is angled down.
You can... -
18th August 2015, 05:19 PM
Thread: Bearing supplies for hobbyists
by nearnexus- Replies
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18th August 2015, 02:13 PM
Thread: Bearing supplies for hobbyists
by nearnexus- Replies
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CBC Bearings are Australia wide, have just about...
CBC Bearings are Australia wide, have just about everything, and do small purchases/value, no problem.
http://www.conbear.com/files/locations.php?sec=locations&lang=en
I bought some "O" rings... -
20th July 2015, 11:03 AM
Thread: Metal lathe for children
by nearnexus- Replies
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Look around for a "Delphin" Universal lathe. ...
Look around for a "Delphin" Universal lathe.
These can be got cheap (from $250 - 500 on Gumtree) and are a good little portable lathe that's passed by because it's made in Russia.
... -
24th June 2015, 11:58 AM
Thread: Grease Recommendation
by nearnexus- Replies
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Good question. I doubt there's any standard on...
Good question. I doubt there's any standard on this - probably just the manufacturers constituents that determine it.
I've used water proof grease that's been green, grey, and white.
Same with... -
24th June 2015, 11:21 AM
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Hi Phil, The Waldown also has angular...
Hi Phil,
The Waldown also has angular bearings, and as I adjust them with it running, there probably is a small amount of preload. I've never considered it significant, but you are correct.
... -
23rd June 2015, 07:04 PM
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Ok. If that's how they do it. I haven't been...
Ok. If that's how they do it. I haven't been through every post.
The problem with pre-load is that it creates drag and heat. I would expect any preload to be very light - you need to know what... -
23rd June 2015, 05:57 PM
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Ball races don't normally use pre-load, from my...
Ball races don't normally use pre-load, from my experience.
Regarding the pulley, the method you are using may work better if you don't cut right to the centre line - ie. leave a flat section and... -
23rd June 2015, 04:52 PM
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Close, but no cigar. That crown needs some...
Close, but no cigar.
That crown needs some more off of it.
What makes you think you need to pre-load the bearings?
On the Waldown you simply adjust it to eliminate the end play (these are... -
21st June 2015, 12:46 PM
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Hi Simon. I never subscribed to the one degree...
Hi Simon.
I never subscribed to the one degree theory. I don't know where that came from.
Certainly the curvature on my C0 Waldown is greater per width, than my old Schaublin.
Modern thin... -
21st June 2015, 11:02 AM
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I had to sleeve and crown the largest pulley on...
I had to sleeve and crown the largest pulley on the intermediate shaft for my old Schaublin 102.
It was in steel, and I did it by eye, free hand.
I just crowned it until it looked right (same... -
20th June 2015, 06:41 PM
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On my C0 Waldown, only the motor pulleys are...
On my C0 Waldown, only the motor pulleys are crowned. It is a two diameter stepped pulley.
The spindle pulleys are flat and have a flange each side.
Works well. The crowned motor pulley... -
17th June 2015, 01:19 PM
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I don't have any motor vibration issues at all...
I don't have any motor vibration issues at all with my C0 Waldown. It's many years old, but absolutely silky smooth.
The motor does scream very loudly, but the bearings are all good and lubed -... -
16th June 2015, 08:36 PM
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I wondered if you were trying to run diamond...
I wondered if you were trying to run diamond burrs in it - that's the only reason for such a speed.
I get my bearings cheap because I am cheap. He he. No not really. These are a standard high... -
16th June 2015, 06:13 PM
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Hi Simon. Why are you looking to drive the TPG...
Hi Simon. Why are you looking to drive the TPG spindle to 38,500 RPM?
I have a C0 Waldown TPG, and as the safe surface speed of a bonded grind stone is approximately 32 metres/second, that... -
15th June 2015, 01:48 PM
Thread: How to get fish oil off lathe ways
by nearnexus- Replies
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Try Acetone on a rag. Shifts most oil based...
Try Acetone on a rag.
Shifts most oil based residue.
Have good ventilation or wear respirator with correct cartridge, and wear Nitrite disposable gloves (Blackwoods have them).
Don't get it... -
10th June 2015, 11:17 AM
Thread: Request for up to date lathe advice
by nearnexus- Replies
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Yes, you're right Stuart. Cold weather has...
Yes, you're right Stuart. Cold weather has frozen my brain.
They're too small and facing the wrong way - whatever you want to call them.
Rob -
10th June 2015, 10:36 AM
Thread: Request for up to date lathe advice
by nearnexus- Replies
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I know for sure that the toolpost on the...
I know for sure that the toolpost on the Paramount lathe does NOT mount on the T slots (edited/corrected) - it has separate bolt holes. This seems to be the case on some other Chinese lathes this...
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20th May 2015, 10:56 AM
Thread: Bench grinder advice
by nearnexus- Replies
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It looks to be a grinding wheel for carbide...
It looks to be a grinding wheel for carbide tools.
Norton make this style of stone with an open/coarse composition.
I have the exact same stone configuration, plus a regular fine green stone on... -
18th May 2015, 09:07 PM
Thread: Bench grinder advice
by nearnexus- Replies
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Yes, for tool grinding you don't need a lot of...
Yes, for tool grinding you don't need a lot of power.
Be aware that second hand bench grinders can look OK, but it's a lottery as to how they've been treated and what condition they are inside. ... -
2nd April 2015, 07:37 PM
Thread: Al250g update
by nearnexus- Replies
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Sounds like there is something seriously wrong in...
Sounds like there is something seriously wrong in the quick change gearbox.
Two gear ratios meshing at once would lock it up.
I suggest you look in there for an answer. -
2nd April 2015, 10:41 AM
Thread: Your favourite tooling supplier
by nearnexus- Replies
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Sticky: Yes, I've dealt with Boltons and found them to be...
Yes, I've dealt with Boltons and found them to be very good, and I'm not in the USA.
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1st April 2015, 07:21 PM
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Use a nylon collar lock nut.
Use a nylon collar lock nut.
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1st April 2015, 05:14 PM
Thread: Water Extraction from Airline
by nearnexus- Replies
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The original idea came from Michael at Paramount...
The original idea came from Michael at Paramount Browns, who used a single very large diameter vertical pipe with ends welded in.
That is inherently dangerous if your welding is not great, and... -
1st April 2015, 09:24 AM
Thread: Water Extraction from Airline
by nearnexus- Replies
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Gawd, I can't believe the amount of discussion on...
Gawd, I can't believe the amount of discussion on what is a very basic concept and application.
I came up with this idea and put up a YouTube video on it quite a while back, and I suggest you at... -
31st March 2015, 04:52 PM
Thread: Water Extraction from Airline
by nearnexus- Replies
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Rust usually isn't a big problem with galvanised...
Rust usually isn't a big problem with galvanised steel pipes in this situation, due to the coating and also the amount of compressor oil/vapour present.
My compressor is a 1970's model Binks... -
30th March 2015, 05:51 PM
Thread: Water Extraction from Airline
by nearnexus- Replies
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If headroom is a problem, just run the pipes...
If headroom is a problem, just run the pipes diagonally across the wall - works the same way.
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20th March 2015, 09:44 AM
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Why not just fit a spring loaded detent pin/ball...
Why not just fit a spring loaded detent pin/ball under the handle base, and drill a register hole (s) where needed.
This is the same method as used for QCGB selection dials/levers.
Be a lot... -
17th March 2015, 08:50 AM
Thread: Al336d lathe crash
by nearnexus- Replies
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Exactly what I expected. I've seen this done...
Exactly what I expected. I've seen this done before and it usually bends the gear shaft and a few rack teeth.
Sometimes it even bends/bows the rack, depending on where the crash occured.
Check... -
15th March 2015, 04:04 PM
Thread: Al336d lathe crash
by nearnexus- Replies
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Yes, so do I, but the leadscrew is a very...
Yes, so do I, but the leadscrew is a very sensitive area, and any amount of grit can cause serious grief throughout the system.
With the covers in place I only need lube the leadscrew every couple... -
15th March 2015, 01:55 PM
Thread: Al336d lathe crash
by nearnexus- Replies
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I've never seen any mention of a "safety" aspect...
I've never seen any mention of a "safety" aspect - leadscrew turns so slowly it's hard to imagine an issue. Injury in slow motion ?
I do a lot of grinding on my lathe and I hate to think what... -
14th March 2015, 04:39 PM
Thread: Al336d lathe crash
by nearnexus- Replies
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I thought there was a high probability. ...
I thought there was a high probability. Leadscrew covers are great, BUT, that's their one major down side.
If it makes you feel any better, I've driven into the leadscrew covers at least 10... -
14th March 2015, 02:47 PM
Thread: Al336d lathe crash
by nearnexus- Replies
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Yes, there's many ways to restrict carriage...
Yes, there's many ways to restrict carriage travel.
The one I have to watch out for continually, and it applies to many Chinese lathes, is leadscrew cover crash - ie they fully compress into their... -
13th March 2015, 07:11 PM
Thread: Al336d lathe crash
by nearnexus- Replies
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When lathes crash, they bind up all the feed...
When lathes crash, they bind up all the feed mechanism. That's why you should always reverse the spindle, rather than try to break it free.
There's a huge amount of wind up in the feed system... -
13th March 2015, 02:48 PM
Thread: Al336d lathe crash
by nearnexus- Replies
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Bad Karma. When this happens you should stop...
Bad Karma.
When this happens you should stop the lathe, leave everything engaged and reverse the chuck rotation to drive it away from the head (either manually turn the chuck, or use reverse... -
9th March 2015, 02:17 PM
Thread: The missing bandsaw post
by nearnexus- Replies
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I doubt it Grahame, as the band would jump off...
I doubt it Grahame, as the band would jump off the pulley first.
Also the side ball races (guide rollers ) are what keeps the blade centred on the rear pressure bearing/race.
IF the blade is... -
9th March 2015, 09:30 AM
Thread: Large file
by nearnexus- Replies
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Ask your local saw works where they get theirs to...
Ask your local saw works where they get theirs to sharpen circulars etc.
They use lots of files and should be able to point you to a decent supplier. -
20th February 2015, 11:27 AM
Thread: Mercury Nova Mini Lathe
by nearnexus- Replies
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If the controller board is cactus, you can...
If the controller board is cactus, you can replace it with a generic KBIC-240 unit.
http://www.kbelectronics.com/DCSelectionGuide.pdf -
7th February 2015, 05:58 PM
Thread: One For The Brains Trust
by nearnexus- Replies
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I suppose after pricing a new one, anyone would...
I suppose after pricing a new one, anyone would get the shakes.
Toyota, Oh what a feeling - about sums it up :)
I think a trip to the wreckers is in order. They have to be a lot cheaper than... -
3rd February 2015, 09:21 AM
Thread: Redwood Machinery - Adelaide
by nearnexus- Replies
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Yes, from memory they moved to Lonsdale as...
Yes, from memory they moved to Lonsdale as Futura, changed to Gasweld, and then changed to Total Tools.
Just another big seller now.
I have been in their Lonsdale shop a few times, but it's a... -
2nd February 2015, 07:14 PM
Thread: Lathe Chuck Internal Lubrication
by nearnexus- Replies
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I wouldn't expect to see any grease fly out. ...
I wouldn't expect to see any grease fly out.
But yes, a light oil spray is always on the cards after a lube job. -
2nd February 2015, 07:10 PM
Thread: Redwood Machinery - Adelaide
by nearnexus- Replies
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Yes, Futura Machinery at Wayville was a great...
Yes, Futura Machinery at Wayville was a great shop.
I bought my first industrial bench grinder there - it went for over 30 years before puffing out the magic white smoke.
Once Redwood goes,... -
2nd February 2015, 02:00 PM
Thread: Redwood Machinery - Adelaide
by nearnexus- Replies
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Actually, although he is a bit of a solemn sam, I...
Actually, although he is a bit of a solemn sam, I will miss that shop when it closes.
He is a no bull kind of a guy, and he had a great range of quality ozzie made button air line connectors -... -
2nd February 2015, 11:27 AM
Thread: Redwood Machinery - Adelaide
by nearnexus- Replies
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Sure going miss him cracking all those jokes.
Sure going miss him cracking all those jokes.
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31st January 2015, 09:56 AM
Thread: Lathe Chuck Internal Lubrication
by nearnexus- Replies
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Grease is great at trapping swarf/grit etc. ...
Grease is great at trapping swarf/grit etc.
Oil won't do that, and it allows you to easily whip off the back and blow out the innards with compressed air when the chuck feels notchy.
If you...