Geekzone: technology news, blogs, forums
Guest
Welcome Guest.
You haven't logged in yet. If you don't have an account you can register now.
View this topic in a long page with up to 500 replies per page Create new topic
1 | ... | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | ... | 63

mdf

mdf
3512 posts

Uber Geek

Trusted

  #2060147 21-Jul-2018 20:21
Send private message quote this post

kobiak:

 

Hi guys,

 

I wonder if anyone knows the best place to purchase Galvanised Pipes (20mm - 400mm) + Flanges. Or my best option is bunnings? 

 

I'm planning to do 

 

but single level as TV stand for now. maybe later add more levels on the side/s.

 

 

I was looking at a steel framed desk project a while back (never got around to actually doing it). I found it really hard to plan out as I didn't know the range of fittings. Eventually found this site (supplier is in Auckland, despite the screwy domain name). Has everything including prices online:

 

https://edgesmith.global/brands/masterklamp.html

 

 


mdf

mdf
3512 posts

Uber Geek

Trusted

  #2060148 21-Jul-2018 20:28
Send private message quote this post

Reversing camera purchased: 3 June 2016.

 

Reversing camera *finally* installed: 21 July 2018:

 


richms
28168 posts

Uber Geek

Trusted
Lifetime subscriber

  #2060154 21-Jul-2018 20:45
Send private message quote this post

mdf:

 

Reversing camera purchased: 3 June 2016.

 

Reversing camera *finally* installed: 21 July 2018:

 

I bought a wireless sender as a stopgap measure till I could be bothered doing the interior pulling out. Its still what I use with its statticy breaking up crap picture. One day I might have the carpets up. Till then.





Richard rich.ms

DarthKermit

5346 posts

Uber Geek

Trusted

#2061814 24-Jul-2018 17:06
Send private message quote this post

Not a DIY project per se, but perhaps a helpful tip for others.

 

There are quite a lot of little jobs to do in our house's crawlspace (such as filling in little gaps around the insulation, rounding off sharp edges, fixing leaks). As a reminder to do these jobs and their exact location, I've attached a clothes peg on or next to the thing that needs some attention.


RUKI
1402 posts

Uber Geek


  #2061833 24-Jul-2018 18:08
Send private message quote this post

Being short on transistors yesterday for one of my very simple robust circuits, drove to JayCar and bought all they had in stock. They looked like fake, and no surprise they were fake! JayCar seems to do not care of who their suppliers are and sell rubbish. Wasted few hours in total. Very disappointing.

 





Toyota / Lexus Hybrid and EV Battery Expert Battery Test & Repair 

 

 


mcraenz
1140 posts

Uber Geek


  #2061871 24-Jul-2018 18:22
Send private message quote this post

Fake as in not the advertised brand? or fake as in not really transistors?






 

Help me build a better way of doing politics in Aotearoa New Zealand

 

 

 


neb

neb
11294 posts

Uber Geek

Trusted
Lifetime subscriber

  #2061883 24-Jul-2018 18:47
Send private message quote this post

RUKI:

Being short on transistors yesterday for one of my very simple robust circuits, drove to JayCar and bought all they had in stock. They looked like fake, and no surprise they were fake! JayCar seems to do not care of who their suppliers are and sell rubbish. Wasted few hours in total. Very disappointing.

 

 

That's because you're using those damn Yankee 2N22222221/2 things, if you used good British BC548's like the rest of us you'd be OK.

 


SepticSceptic
2186 posts

Uber Geek

Trusted

  #2062298 25-Jul-2018 13:53
Send private message quote this post

RUKI:

 

Being short on transistors yesterday for one of my very simple robust circuits, drove to JayCar and bought all they had in stock. They looked like fake, and no surprise they were fake! JayCar seems to do not care of who their suppliers are and sell rubbish. Wasted few hours in total. Very disappointing.

 

 

Sure it wasnt some random C-B-E pin arrangement ? Or was it a case of no PN junction on any arrangement of pins ?

 

Can be quite a crapshoot figuring out which pin arrangement one ends up with.

 

 


DarthKermit

5346 posts

Uber Geek

Trusted

  #2072037 12-Aug-2018 14:12
Send private message quote this post

Update on my drainage project:

 

Click to see full size

 

Another drain next to our clothesline path.

 

Click to see full size

 

More 90 mm PVC pipe I'm going to install complete with junctions for more drains.


MikeAqua
7773 posts

Uber Geek


  #2072552 13-Aug-2018 11:01
Send private message quote this post

I need to install drainage in our front lawn.

 

Unfortunately the nearest drain sump is in the driveway, separated from the lawn by 1.2m of concrete.  I plan to span this distance with PVC pipe

 

I'd appreciate some feedback on my plan for this: -

 

1) Set up a string line down the centre of the lawn to the centre of the sump;

 

2) Have the area professionally checked for cables, pipes etc;

 

3) Dig a nice straight trench along the centre of the lawn to the edge of the concrete;

 

4) Use a digging bar and water blaster to bore under concrete to the sump.

 

5) Use a 2.4m straight edge along the trench as a reference to check my tunnelling angle.

 

Something I'm really struggling with is how I can ensure a good seal when connecting the PVC pipe to the sump.

 

 





Mike


DarthKermit

5346 posts

Uber Geek

Trusted

  #2072560 13-Aug-2018 11:15
Send private message quote this post

When I started off with my drainage around our house, I purchased a hole saw that was as close to the outside diameter of the 90 mm storm water pipe as I could find (at Bunnings). The one I got is about 2 mm bigger than the pipe.

 

You should be able to seal the gap between your driveway sump and the pipe with some kind of liquid sealant.


nickb800
2715 posts

Uber Geek

Trusted

  #2072562 13-Aug-2018 11:22
Send private message quote this post

MikeAqua:

 

I need to install drainage in our front lawn.

 

Unfortunately the nearest drain sump is in the driveway, separated from the lawn by 1.2m of concrete.  I plan to span this distance with PVC pipe

 

I'd appreciate some feedback on my plan for this: -

 

1) Set up a string line down the centre of the lawn to the centre of the sump;

 

2) Have the area professionally checked for cables, pipes etc;

 

3) Dig a nice straight trench along the centre of the lawn to the edge of the concrete;

 

4) Use a digging bar and water blaster to bore under concrete to the sump.

 

5) Use a 2.4m straight edge along the trench as a reference to check my tunnelling angle.

 

Something I'm really struggling with is how I can ensure a good seal when connecting the PVC pipe to the sump.

 

 

 

 

Sounds like a tricky one!

 

If it's a plastic sump, then you can use a 'wallace seal' (google it) and simply force the pipe into the seal.

 

Tunneling for a large (say 90mm) pipe without undermining the concrete will be challenging. You could try and get a large diameter (100mm ID?) steel pipe that you can and use it as a sleeve - driving it horizontally with a sledge hammer. Flush out the insides with the water blaster, then fit 90mm PVC inside with Wallace Seal at the sump end. 

 

Further to the steel sleeve idea, you could use a smaller bore PVC pipe (thus smaller bore steel sleeve) and have a sump in the lawn on the edge of the driveway to convert between this and the rest of your lawn drainage. This sump will handle any momentary backlog, as generally a 90mm pipe won't be completely full for very long. 

 

 


mdf

mdf
3512 posts

Uber Geek

Trusted

  #2072578 13-Aug-2018 11:56
Send private message quote this post

nickb800: Tunneling for a large (say 90mm) pipe without undermining the concrete will be challenging.

 

+1 to this. If you're concrete was laid properly, you will have a compacted aggregate base under it and it will be a stone cold b*****d to get though. It took me a couple of hours and plenty of effing and jeffing to tunnel under  a 600mm span, and I was only trying to get a 20mm electrical conduit under it.

 

How deep under the concrete are you aiming to dig? Deeper is actually potentially easier, though you need to allow plenty of space behind and under to swing your bar.

 

It will be much easier (and probably quicker and more stable) to cut with a diamond saw or concrete cutter, dig out and backfill with pea metal and patch with concrete. Though it will look patched and won't be aesthetic if the concrete is "nice" (or even acceptable). I did this a while ago, and with the benefit of hindsight, I should have filled the cut gap with drainage grate or something. I don't think it would have looked as bad as obviously patched concrete.


MikeAqua
7773 posts

Uber Geek


  #2072584 13-Aug-2018 12:20
Send private message quote this post

mdf:

 

How deep under the concrete are you aiming to dig? Deeper is actually potentially easier, though you need to allow plenty of space behind and under to swing your bar.

 

 

I'm not sure how deep yet.  I need to do some measurements of the sump and figure out the falls etc.

 

I'll be digging about an 8 metre trench down the middle of the lawn for a PVC backbone to run drainage laterals off.  Plenty of room to swing a bar, a 3m bar on a swing frame would probably do the trick.

 

There is a generous layer of highly compacted aggregate, under the house and driveway so digging is bound to be a chore how ever I go about it.  On the plus side, the concrete (steel mesh reinforced) should be stable. 

 

I could get someone in to mechanically bore under the drive to the sump.   I like the idea of ramming in a steel sleeve and running a PVC pipe through it.  The steel would support the soil etc.

 

mdf:

 

It will be much easier (and probably quicker and more stable) to cut with a diamond saw or concrete cutter, dig out and backfill with pea metal and patch with concrete.

 

 

The concrete is exposed aggregate so cutting and patching wouldn't be aesthetically acceptable, we'd be replacing an entire panel and even then it probably wouldn't match ... I'd rather put up with a boggy front lawn.





Mike


kryptonjohn
2523 posts

Uber Geek

Lifetime subscriber

  #2072640 13-Aug-2018 12:40
Send private message quote this post

Not sure why you need to seal it? Your inlet into the sump should be higher than the sump outlet so as long as your pipe runs down through the wall of the sump, the water is just going to fall out into the sump. 


1 | ... | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | ... | 63
View this topic in a long page with up to 500 replies per page Create new topic



News and reviews »

Air New Zealand Starts AI adoption with OpenAI
Posted 24-Jul-2025 16:00


eero Pro 7 Review
Posted 23-Jul-2025 12:07


BeeStation Plus Review
Posted 21-Jul-2025 14:21


eero Unveils New Wi-Fi 7 Products in New Zealand
Posted 21-Jul-2025 00:01


WiZ Introduces HDMI Sync Box and other Light Devices
Posted 20-Jul-2025 17:32


RedShield Enhances DDoS and Bot Attack Protection
Posted 20-Jul-2025 17:26


Seagate Ships 30TB Drives
Posted 17-Jul-2025 11:24


Oclean AirPump A10 Water Flosser Review
Posted 13-Jul-2025 11:05


Samsung Galaxy Z Fold7: Raising the Bar for Smartphones
Posted 10-Jul-2025 02:01


Samsung Galaxy Z Flip7 Brings New Edge-To-Edge FlexWindow
Posted 10-Jul-2025 02:01


Epson Launches New AM-C550Z WorkForce Enterprise printer
Posted 9-Jul-2025 18:22


Samsung Releases Smart Monitor M9
Posted 9-Jul-2025 17:46


Nearly Half of Older Kiwis Still Write their Passwords on Paper
Posted 9-Jul-2025 08:42


D-Link 4G+ Cat6 Wi-Fi 6 DWR-933M Mobile Hotspot Review
Posted 1-Jul-2025 11:34


Oppo A5 Series Launches With New Levels of Durability
Posted 30-Jun-2025 10:15



Geekzone Live »

Try automatic live updates from Geekzone directly in your browser, without refreshing the page, with Geekzone Live now.



Are you subscribed to our RSS feed? You can download the latest headlines and summaries from our stories directly to your computer or smartphone by using a feed reader.