Thread: Friday lunch prattle

A very tidy and well sortout shed Lance.

Bob, can you please post the details about the new type of fluorescent bulbs you mentioned? I need some new ones, and would like to maximise the light output.

Originally Posted by LanceC

Bob, can you please post the details about the new type of fluorescent bulbs you mentioned? I need some new ones, and would like to maximise the light output.

Because LED tech has pushed them into it, almost all of the new fluorescent (gas discharge tubes) are much more efficient these days and ALSO have a longer life than the older ones. If you already have newish fluoro fittings and are not worried bout running costs then you may get decent value for $ by just replacing the fluoro tubes.

However, there are rapid advances in both LED and fluoro tubes so it's important to look at the Lumens/Watt rating over their life time

BUT

Just putting new fluoros into old fittings with old ballasts might not save you any money as old ballasts will continue to chew unnecessary amounts of power.

Same problem when fitting LED tunes to older fluoro light fixtures. However in this case the Ballasts can be removed as they are not needed. Unless you know what you are doing this is best left to a sparky.

In this case cases it can work out cheaper to just buy completely new LED fittings.

I bought 30 AEG (made in china) LED tube replacements back in 2015 ($10 ea).
I see they are still available
GermanAEG LED T8 Light tube fluorescent 9W 18W 24W 60 120 150 cm COOL FROSTED | eBay

I use 20 of these tubes in the shed and most of the rest throughout the house. TI think I have one spare. One of the 30 has failed over that time and when I put the replacement in along side an existing one it was way to see that the used one ha definitely faded .
These are 105 Lumens/Watt but these days 120 or more Lumens/W is not unusual so I would look out for something better but cost will usually be higher.

BTW you should target about 750 lumens/m^2 (lux) for a workshop. One thing I do know is that just installing sufficient known Lumens worth of lighting for your shed area will not get you real lux on a work surface below the lights. You end up with less than half that.

1m above my electronics workbench bench I have 10,000 nominal lumens of installed lighting
BUT
On the bench I get about 2000 Lux

This thread may be of interest
Some actual shed illuminance measurements.

Thanks for the shed tour.

Hi All,

Is anyone keen to provide a shed tour tomorrow?

Otherwise we can just have a general "what have you been up to" chat. I'm sure the Victorians amongst us will be full of stories of travelling far and wide!

Topic: Friday lunch prattle
Time: 12:00 - 12:40 AEDT


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Originally Posted by LanceC

Hi All,

Is anyone keen to provide a shed tour tomorrow?

Otherwise we can just have a general "what have you been up to" chat. I'm sure the Victorians amongst us will be full of stories of travelling far and wide!

I can't guarantee anything for tomorrow - too busy "travelling far and wide"

If I make it I make it, if not feel free to start without me.

I'd like to brag about a couple new tools but whilst they have arrived in Canberra my son won't drop them off till Saturday

Unfortunately I will be travelling to work, well actually will be at work by 12, well I hope I am.

So probably won’t make it.

Cheers Matt.

I'll be helping a mate set up a radial arm saw tomorrow.

Originally Posted by BobL

I'll be helping a mate set up a radial arm saw tomorrow.

Count your fingers before and after

Will miss the prattle. Under starter's order!
Have a nice chat !!!

Cheers Yvan

I'll be there.

Regards
Paul

Lance, Record Power is the company that is hosting the wood turning demonstrations.

Send an email to [email protected] with RSVP in the subject line.

You will receive a return email with the direct link to the webinar.

Mick.

A very good general discussion today.

Some links for Lance on permaculture and Bill Mollinson.

(PDF) Bill Mollison - PERMACULTURE. A Designers' Manual (2002, Tagari Press) | Moon Dog - Academia.edu

The book I referred to:

9781869540012 - Biodynamics: new directions for farming and gardening in the New Zealand
by New Zealand Biodynamic Association

Regards
Paul

Originally Posted by doug3030

Count your fingers before and after

Still have all fingers. First thing I did, after a bit of effort, was remove the blade.

This (Italian Dewalt) 3P 4HP radial arm saw had been sitting inside the same sea container as Anorak Bob's Woodfast Junior, so was exposed to the same amount of heat and moisture etc. Fortunately there's nowhere near as much exposed steel so the amount of corrosion was much less than the Woodfast.

The primary test was this morning was to check the insulation resistance of the motor windings. This was made difficult by several badly rusted rotational adjustment levers, nuts and screws limiting access to the motor connections but after some penetrol and persuasion with some large ring spanners and screw drivers I managed to get in there. The insulation resistance at 750V was 8MΩ which is passable and as the motor spun very freely we started it (no blade) and it ran very smoothly for 15 minutes during which the motor got slightly warm - I was hoping this would help dry out the motor internals. After switching it off and testing the insulation resistance it was now 12 MΩ so hopefully it will keep improving as it is used.

After applying lots off penetrol and wiggling all the adjustments levers arms/screws etc back and forth most of them seem to be working although some are still a little stiff. The MDF table and fence is stuffed and need replacement. All of the exposed steel screws, nuts, bolts, adjustment locking plates etc are rusty - I have removed most of then and will be giving them a citric acid bath and then I will think about metal bluing them. Many of the yellow and red plastic knobs are perished/cracked/broken and will need replacement. Otherwise it should make a very serviceable saw.