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20th Apr 2024, 10:37 AM
Thread: Medieval sword
by familyguy- Replies
- 15
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- 6,810
I recently went to a knife show - a lot of blade...
I recently went to a knife show - a lot of blade makers showing their stuff - everyone I spoke to was more than willing to explain "how to" - also present were quite a few suppliers of steel/blanks...
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28th Mar 2024, 11:16 AM
Thread: Nifty thread cutting technique
by familyguy- Replies
- 4
- Views
- 426
It's not a bad idea, that had never occurred to...
It's not a bad idea, that had never occurred to me - same overall result as setting the topslide over 30deg.
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28th Mar 2024, 10:52 AM
Thread: Bench Grinder Capacitor
by familyguy- Replies
- 11
- Views
- 551
I've got the exact same 8inch grinder, purchased...
I've got the exact same 8inch grinder, purchased new in the early 1980's.
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28th Mar 2024, 10:34 AM
Thread: Small hobby CNC Router Laser engraver
by familyguy- Replies
- 5
- Views
- 666
My thoughts are - if you can't get any info...
My thoughts are - if you can't get any info direct from an owner of one of these engravers then the next best thing would be a youtube search, there are many owner reviews of these type of cnc...
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18th Mar 2024, 11:10 AM
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- 30
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- 1,422
I'm a long way from a sheet metal worker/expert...
I'm a long way from a sheet metal worker/expert but I've got a home made bending brake that looks like a scaled down/less features version of the one in the link and I would say no.
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16th Mar 2024, 10:23 AM
Thread: Slow speed carbide grinder
by familyguy- Replies
- 34
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- 1,819
It's worth a try but you might find coolant gets...
It's worth a try but you might find coolant gets flung all over the place - I have flood coolant on my mill, the coolant delivery nozzle needs to be in just the right place, 1 or 2 mm's in the wrong...
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15th Mar 2024, 09:57 AM
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- 27
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- 1,339
A good ending to this story, as luck would have...
A good ending to this story, as luck would have it, yesterday a sparky was on the job at the building site a few doors down and about to finish for the day, he came and had a look, after checking the...
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14th Mar 2024, 09:56 AM
- Replies
- 27
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- 1,339
My son works in AV/Sound hire for a national...
My son works in AV/Sound hire for a national company, they hire out and setup all manner of AV/sound gear from 10meter LED screens to podium mics - all of their gear must be test/tagged - he often...
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13th Mar 2024, 11:02 AM
- Replies
- 27
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- 1,339
So it looks as if the job done by the...
So it looks as if the job done by the landscaper's sparky is less than stellar - there's new building work going on a few doors down and I sometimes stop and talk to the tradies - next time I pass by...
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12th Mar 2024, 05:01 PM
- Replies
- 27
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- 1,339
Shed power connection question for the sparkies.
Prior to starting our new home build I put up a 4.5mx6m shed at the back corner of the block had it wired for power points and lights, which included it's own distribution board with a 3 circuit RCD...
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9th Mar 2024, 12:33 AM
- Replies
- 42
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- 2,137
That's why you have pedals
That's why you have pedals
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6th Mar 2024, 12:51 AM
- Replies
- 42
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- 2,137
I still had this site bookmarked, it is about...
I still had this site bookmarked, it is about escooters which are very similar to ebikes but lack pedal assist, it has a good lot of online calculators and is well worth a browse and may save you a...
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5th Mar 2024, 11:31 AM
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- 4
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- 402
How does this work - does it just flatten the...
How does this work - does it just flatten the minute ridges that are part of a bad finish, I can't see it removing any metal, while it is much quicker than emery paper is it ok to use on a surface...
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5th Mar 2024, 10:18 AM
- Replies
- 42
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- 2,137
A while back I looked into project to motorise a...
A while back I looked into project to motorise a bike by adding an aliexpress BLDC 24V motor and throttle control, similar size to yours - 250W.
To work out the gearing I googled info and the... -
1st Mar 2024, 10:07 AM
Thread: Indexable carbide end mills
by familyguy- Replies
- 33
- Views
- 2,104
Others may not agree with me but I believe a bit...
Others may not agree with me but I believe a bit of care is needed when using 1 and 2 flute/insert cutters on gear drive mills - if they are not cutting full width 1 flute cutters will produce an...
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22nd Feb 2024, 11:05 PM
Thread: Engine Air Pump !
by familyguy- Replies
- 2
- Views
- 484
I came across a similar device recently while...
I came across a similar device recently while tidying up my late father's tools/things - as a child I recall he used it a few times - screwed into the cylinder head in place of a sparkplug - a length...
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22nd Feb 2024, 01:28 PM
Thread: DRO Hercus 9
by familyguy- Replies
- 8
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- 540
I agree it is on the pricey side but then it's...
I agree it is on the pricey side but then it's each to his own, I fitted a DRO to my lathe, it did take some head scratching to work out where and how to mount the readers/scales, total cost...
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21st Feb 2024, 11:32 PM
Thread: Kurt Vice Auction
by familyguy- Replies
- 17
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- 1,194
There's certainly some nice stuff there - being...
There's certainly some nice stuff there - being just a hobby machinist most of it is a bit out of my league, but that doesn't stop me from still wanting it.
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20th Feb 2024, 11:24 AM
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- 824
This job actually gave me more grief than I...
This job actually gave me more grief than I thought it would, after I eventually had the 24TPI thread fitting nicely (with no detectable play) I needed to carry out 2 more machining operations - a...
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20th Feb 2024, 11:06 AM
Thread: 80mm Chuck on a 12x24 lathe
by familyguy- Replies
- 4
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- 722
I was aware it's not a new idea, however that...
I was aware it's not a new idea, however that setup in the photo is almost the same but not quite, remove the small chuck and you'll have to clock it up again to get it to run true, but if mounted on...
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20th Feb 2024, 12:48 AM
Thread: 80mm Chuck on a 12x24 lathe
by familyguy- Replies
- 4
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- 722
80mm Chuck on a 12x24 lathe
Just finished this is the last week or so.
There are times when I need to hold small diameter stock, as I mostly use a 4 jaw independent I made an adaptor to take a neat little 80mm TOS 3 jaw chuck... -
18th Feb 2024, 11:39 AM
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- 13
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- 824
Thanks for all of the replies and tips - I...
Thanks for all of the replies and tips - I thought my reasoning was sound but not so, I almost never do custom threads, my usual way is to get the sizes from tables just use tap and die, if the pitch...
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16th Feb 2024, 11:39 PM
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- 13
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- 824
How does one calc the internal and external dimensions for custom threads.
I recently cut a 30mm diam 24TPI external and matching internal thread - thread data shows the thread depth for a 24TPI thread is 0.68mm, for the external thread the stock was turned down to 30mm and...
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15th Feb 2024, 11:48 AM
Thread: Hydraulic cylinder end cap threads ?
by familyguy- Replies
- 9
- Views
- 668
I think it's going to be a long-term project...
I think it's going to be a long-term project started while waiting for a blank back plate to arrive for my new 5" 4 jaw - there are quite a few diy hydraulic vice videos on youtube - seems like a...
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14th Feb 2024, 09:22 PM
Thread: Hydraulic cylinder end cap threads ?
by familyguy- Replies
- 9
- Views
- 668
Well it's done now - I guess the proof of the...
Well it's done now - I guess the proof of the pudding will be in the eating, if it fails then I'll have to go back to the drawing board - won't be the first time, it's a bit of an experiment for...
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14th Feb 2024, 05:42 PM
Thread: Hydraulic cylinder end cap threads ?
by familyguy- Replies
- 9
- Views
- 668
Hydraulic cylinder end cap threads ?
I'm making a small hydraulic cylinder, 30mm diam x 2mm thick wall turned from 1020 mild steel, and would like if possible advice on the end cap threads, max PSI would be up to 800psi.
What I am... -
12th Feb 2024, 01:22 AM
Thread: Minimise/prevent warping
by familyguy- Replies
- 6
- Views
- 522
Thanks for all the tips - job is done, the welds...
Thanks for all the tips - job is done, the welds are ok, I would rate them around 8 out 10 for neatness - main thing is they don't look like spoggy sh!te i.e. just dribbled on - I'll try to get a pic...
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10th Feb 2024, 10:38 AM
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- 49
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- 3,602
Is that a blade butt welder I see on the side of...
Is that a blade butt welder I see on the side of the machine in the 2nd pic.
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10th Feb 2024, 10:15 AM
Thread: Minimise/prevent warping
by familyguy- Replies
- 6
- Views
- 522
I'm doing the job for a friend's son - part of a...
I'm doing the job for a friend's son - part of a fitness machine he is modifying - the friend did explain it but to be honest I wasn't taking that much notice, I was more focused on the possibility...
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10th Feb 2024, 12:25 AM
Thread: Minimise/prevent warping
by familyguy- Replies
- 6
- Views
- 522
Minimise/prevent warping
I need to weld a 45mm long bracket onto a length of 27mm diam bar as shown in the rough sketch, I only have a old fashion style stick welder, the weld needs to be neat and tidy, the bar is 1020 mild...
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2nd Feb 2024, 09:50 AM
- Replies
- 12
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- 1,180
I cover my small T&C grinder (about the same size...
I cover my small T&C grinder (about the same size as a D bit grinder) with a cover cut from an old cotton bed sheet and place a 25W incandescent globe under the cover, this is enough to keep rust at...
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20th Jan 2024, 12:45 PM
Thread: DRO Instalation !
by familyguy- Replies
- 40
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- 11,295
While the Vevor table looks the same as my Ebay...
While the Vevor table looks the same as my Ebay table it may well be a top-quality item, mine is ok but a long way from top quality - with these things coming out of China it's hard to tell these...
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20th Jan 2024, 10:56 AM
Thread: DRO Instalation !
by familyguy- Replies
- 40
- Views
- 11,295
I've got one of those Vevor X/Y tables, however...
I've got one of those Vevor X/Y tables, however mine came from Ebay, it looks identical it was $165. While doing a CNC conversion on my mill I needed to use a mill so I bolted it down to the mill...
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15th Jan 2024, 11:48 AM
Thread: Saw this in the news
by familyguy- Replies
- 18
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- 5,270
Something like an Owen gun is not that hard to...
Something like an Owen gun is not that hard to make, back when I was a cadet in high school I recall we had 2 Owens in the Q store shed, I remember thinking how simple it was and wondering it I could...
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22nd Dec 2023, 10:33 AM
Thread: Arboga EM825 motor rewind
by familyguy- Replies
- 31
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- 16,550
I used my Arboga for many years before I came...
I used my Arboga for many years before I came across the user manual, I wasn't surprised to read in the manual that Arboga do not recommend the use of 2 flute milling cutters - I had sort of worked...
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21st Dec 2023, 10:38 PM
Thread: Macson Lathe
by familyguy- Replies
- 5
- Views
- 508
I think shorts and safety boots are better for...
I think shorts and safety boots are better for welding, at least that way the hot sparks that hit your feet can't escape.
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21st Dec 2023, 03:43 PM
Thread: You'll shoot your eye out !
by familyguy- Replies
- 0
- Views
- 1,111
You'll shoot your eye out !
"You'll shoot your eye out."
If anyone is interested in the origins of this saying and you happen to have a Foxtel subscription then take some time to watch "A Christmas Story" - this movie is a... -
18th Dec 2023, 09:29 AM
Thread: Looking for a piston ring
by familyguy- Replies
- 9
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- 2,427
Not sure if JP Pistons in Windsor Gardens,...
Not sure if JP Pistons in Windsor Gardens, Adelaide is still operating, some years back they made me a set of rings for a Honda S600 Roadster.
Back in the day when I was playing around with bikes... -
30th Nov 2023, 10:43 AM
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- 27
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- 5,674
Looks like the real thing.
Looks like the real thing.
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27th Nov 2023, 10:24 AM
Thread: Saw this in the news
by familyguy- Replies
- 18
- Views
- 5,270
Saw the same story in the local weekend paper,...
Saw the same story in the local weekend paper, while his handy work looks really well made, the guy's an idiot and deserves what he gets - if you are going to be making things like that you tell...
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23rd Nov 2023, 11:43 AM
Thread: Anologue V digital potentiometer
by familyguy- Replies
- 13
- Views
- 1,171
I'm sure the bottom frequency of 56Hz is not set...
I'm sure the bottom frequency of 56Hz is not set by the potentiometer but by the settings in VFD, there are settings in most common VFD's that set the upper and lower frequency limits, the...
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17th Nov 2023, 12:28 AM
Thread: Anologue V digital potentiometer
by familyguy- Replies
- 13
- Views
- 1,171
Why would you want a digital potentiometer ? I...
Why would you want a digital potentiometer ? I may be wrong, but my understanding of a digital potentiometer is an electronic device that acts like an analog potentiometer, it's controlled by a...
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16th Nov 2023, 10:44 AM
- Replies
- 27
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- 5,674
What I call partial shorts are actually shorted...
What I call partial shorts are actually shorted turns, I've just gotten used to calling them partial shorts as distinct from dead shorts.
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12th Nov 2023, 11:22 AM
- Replies
- 27
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- 5,674
Some of the transformer winders on the DIY Audio...
Some of the transformer winders on the DIY Audio forum use spar varnish believing this is a better grade that can take a bit more heat, others use plain water based floor varnish and say it's fine -...
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10th Nov 2023, 11:09 AM
- Replies
- 27
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- 5,674
Your winding setup looks pretty much cobbled...
Your winding setup looks pretty much cobbled together but it does the job ok and that's all that matters, not being a motor winder there's not a lot of advice I can give, but I can say what I found...
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22nd Oct 2023, 10:33 AM
Thread: Model Engineering books
by familyguy- Replies
- 6
- Views
- 780
I know it is nice to have your own hard copy but...
I know it is nice to have your own hard copy but sometimes just being able to access a book online is enough - the Internet Archive has a 'borrow only' copy on the Minnie - to access it you need to...
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29th Sep 2023, 10:26 AM
Thread: bending pipe with a concrete mould
by familyguy- Replies
- 16
- Views
- 1,596
Yes there is some truth in what you say - doing...
Yes there is some truth in what you say - doing anything yourself is certainly more time consuming than farming it out to a workshop, and while the galvanising will be compromised I don't think it...
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28th Sep 2023, 10:52 AM
Thread: bending pipe with a concrete mould
by familyguy- Replies
- 16
- Views
- 1,596
Many years ago, not being able to afford a...
Many years ago, not being able to afford a factory made exhaust system I made one from straight pipe, by making a series of hacksaw cuts on the inside of the bends in much the same way as the...
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16th Sep 2023, 11:04 AM
Thread: Metal expanded polyethylene composite
by familyguy- Replies
- 1
- Views
- 435
My brother-inlaw works in crash repair, he uses...
My brother-inlaw works in crash repair, he uses polyurethane adhesive quite a lot, comes in a caulking gun type tube, he says it has excellent holding power and will stick just about anything to...
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24th Aug 2023, 12:23 PM
Thread: Ditron D80 DRO Tool Tables
by familyguy- Replies
- 11
- Views
- 1,025
Thanks for the explanation - makes sense and I...
Thanks for the explanation - makes sense and I can see this may be useful in a production environment where time is money, but for home hobby use I'm not so sure, I'll have a look to see if my lathe...