All times are UTC + 8 hours




Post new topic Reply to topic  [ 21 posts ]  Go to page 1, 2  Next
Author Message
PostPosted: Sep 23rd, '09, 16:59 
Offline
Bordering on Legend
Bordering on Legend

Joined: May 3rd, '08, 19:30
Posts: 315
Gender: Male
Location: Trafford, Manchester, England
OK, before I start destroying these expensive plastic tubs we've bought, has anyone got any tips on how to cut holes in them?

What sort of tools? are you putting anything behind them to drill thru to? all hints and tips gratefully received!

Thanks

Andrew

_________________
My pre-system plans
Our system getting started

Our Energy Descent plan, Aquaponics, and everything we're doing to the house & garden: Trafford Eco-House


Top
 Profile  
Reply with quote  
    Advertisement
 
PostPosted: Sep 23rd, '09, 17:23 
Offline
Seriously, this cant be healthy.
Seriously, this cant be healthy.
User avatar

Joined: Nov 13th, '07, 06:23
Posts: 5315
Location: Bundoora, Melbourne
Gender: Male
Are you human?: somewhat
Location: Victoria, Australia
depends on how accurate you want the hole. I'd advise a holesaw.

_________________
KudaPucat
A horse is only a horse for as long as we see it as a horse.
The Pale Horse Rides Again
My System #2


Top
 Profile  
Reply with quote  
PostPosted: Sep 23rd, '09, 17:30 
Offline
Seriously, this cant be healthy.
Seriously, this cant be healthy.
User avatar

Joined: Aug 24th, '06, 19:46
Posts: 6585
Location: sunbury
Gender: Male
Are you human?: no
Location: sunbury
Here in aus a decent hole saw set is about $20.00 [thats for about 10 different sizes]

_________________
If it/s free pick it up
If it isent broke dont fix it


Top
 Profile  
Reply with quote  
PostPosted: Sep 23rd, '09, 17:38 
Offline
Bordering on Legend
Bordering on Legend

Joined: May 3rd, '08, 19:30
Posts: 315
Gender: Male
Location: Trafford, Manchester, England
ok, cool - anything to watch out for when using it? I guess I'm worried about splitting the tank?

_________________
My pre-system plans
Our system getting started

Our Energy Descent plan, Aquaponics, and everything we're doing to the house & garden: Trafford Eco-House


Top
 Profile  
Reply with quote  
PostPosted: Sep 23rd, '09, 17:39 
Offline
Bordering on Legend
Bordering on Legend
User avatar

Joined: May 20th, '07, 21:25
Posts: 498
Images: 5
Location: Wales.Uk
Gender: Male
Are you human?: yes
Location: Wales - Isle of Anglesey
Hi Andrew

Depending on the size you require - up to 28 mm we use a cone drill (your local hardware store has them or Screwfix sell a set of three cones from small to 28 mm and they are invaluable, will cut metal as well as plastic). If we are cutting into larger stuff we use solid hole cutters as they are better than those multiple cutters which are cheap, cheerful and NAFF. If you feel that your drill will go too deep then put a piece of wood behind the drill hole, we do this when drilling out polar gullies. Get back if you want more info.
WD and OH


Top
 Profile Personal album  
Reply with quote  
PostPosted: Sep 23rd, '09, 17:44 
Offline
A posting God
A posting God
User avatar

Joined: Jul 1st, '08, 11:03
Posts: 3689
Gender: None specified
Location: Australia NSW
Whats the tank look like. And how big. I had to resize some holes later after going too small to start with. Also good to work out what you want before you start drilling.

_________________
When I go, I want it to be peacefully like my Grandfather did, in his sleep -- not screaming, like his passengers.

http://www.backyardfarming.com.au/phpbbb/


Top
 Profile  
Reply with quote  
PostPosted: Sep 23rd, '09, 18:50 
Offline
Bordering on Legend
Bordering on Legend
User avatar

Joined: Sep 19th, '08, 20:12
Posts: 327
Gender: Male
Location: PERTH 6066
HOW GOOD IS SCREWFIX!!! focus or jewsons would be able to help you out at well... or ceck out ebay. I found that some holesaws, will give you a super snug fit on your pipe which will not leak... but i put slaz around the outside anyway.


Top
 Profile  
Reply with quote  
PostPosted: Sep 23rd, '09, 19:49 
Offline
Bordering on Legend
Bordering on Legend
User avatar

Joined: Jan 15th, '09, 14:02
Posts: 349
Images: 20
Location: 65km north of Perth
Gender: Male
Are you human?: if yes goto line 25
Location: Muchea WA
andrew-l wrote:
ok, cool - anything to watch out for when using it? I guess I'm worried about splitting the tank?


If your worried go half way through then turn the tank around and finnish it on the other side, worked for me cutting hard plastics oh and not to fast

_________________
Link to my system

My Website


Top
 Profile Personal album  
Reply with quote  
PostPosted: Sep 23rd, '09, 20:17 
Offline
Seriously, this cant be healthy.
Seriously, this cant be healthy.
User avatar

Joined: Dec 6th, '07, 01:13
Posts: 10700
Images: 0
Location: central FL
Gender: Female
Are you human?: YES at least mostly
Location: USA, Florida, Yalaha
Tips.

1- Don't put the hole through across a ripple, curve etc. Makes it impossible to get most bulkhead fittings to seal properly.

2- Don't push too hard on the drill, if the plastic is brittle, you are more likely to make a crack that way and having the point of the hole saw suddenly punch through with force may cause the rest of the hole saw to hit and bite unevenly causing you to twist your wrists or hit yourself with the handle of the drill as it swings around.
Slow and steady is the best way to deal with hole saws. Do some practice cuts on scrap materials if you are not comfortable with the tools at first.

3- Double check the position of the hole a few extra times before cutting. Make sure you will have room to install whatever fitting you intend to use. too close to corners or bracing tends to be a problem for some types of fittings. If you install a bulkhead fitting and are going to screw an elbow into it, make sure there is room for the elbow to spin. That sort of thing.

_________________
Aquaponic Lynx
TCLynx Bought The Farm
Old Main System
Old 300 gallon System


Top
 Profile  
Reply with quote  
PostPosted: Sep 25th, '09, 14:59 
Offline
Bordering on Legend
Bordering on Legend

Joined: May 3rd, '08, 19:30
Posts: 315
Gender: Male
Location: Trafford, Manchester, England
Thanks for the tips guys - I have bought a holesaw, and will let you know how I go (gently!)

_________________
My pre-system plans
Our system getting started

Our Energy Descent plan, Aquaponics, and everything we're doing to the house & garden: Trafford Eco-House


Top
 Profile  
Reply with quote  
PostPosted: Mar 25th, '10, 19:56 
Offline
Legend Member
Legend Member
User avatar

Joined: Apr 4th, '08, 09:36
Posts: 549
Images: 0
Location: Perth
Gender: Female
Are you human?: I think...I hope so!
Location: Sou'West Oz
long time since we've seen you... .what's up ... did you manage to make some holes and set your system up?

_________________
"I shall either find a way or make one."


Top
 Profile  
Reply with quote  
PostPosted: Mar 26th, '10, 08:33 
Offline
Almost divorced
Almost divorced
User avatar

Joined: Dec 5th, '09, 03:00
Posts: 1237
Location: Houston, Texas
Gender: Male
Are you human?: No, The Missing Link
Location: Houston Texas
If the plastic is brittle and flat, you can clamp a small piece of plywood on both side of the hole. You won't have to worry about cracking at all then.

_________________
Test system (deprecated): viewtopic.php?f=18&t=6894


Top
 Profile  
Reply with quote  
PostPosted: Mar 26th, '10, 10:18 
Offline
Xtreme Contributor
Xtreme Contributor
User avatar

Joined: May 26th, '09, 09:40
Posts: 233
Gender: Male
Are you human?: Occasionally.
Location: One Tree Hill SA
the main thing I have experienced, is I drilled the hole 1 mm too small, and then cracked the tub when forcing the pipe through.

MAKE sure to be tight, but not TOO tight...

_________________
Coffee is good. It stops Headaches.

Recipes and stuff? http://eat.cool.net.au check it out!


Top
 Profile  
Reply with quote  
PostPosted: Mar 26th, '10, 10:30 
Offline
Almost divorced
Almost divorced
User avatar

Joined: Dec 5th, '09, 03:00
Posts: 1237
Location: Houston, Texas
Gender: Male
Are you human?: No, The Missing Link
Location: Houston Texas
Oh ya - make sure you plan the size better then me. On my IBC, I planned for two 1" overflows and drilled and plumbed them up. Turns out I should have used at leat two inch (or more) instead of one as the pump is way over powered. I am now diverting about 90 percent of the pumped water back into the sump as to not overflow the FT. Big waste of power!

_________________
Test system (deprecated): viewtopic.php?f=18&t=6894


Top
 Profile  
Reply with quote  
PostPosted: Mar 26th, '10, 13:18 
Offline
Legend Member
Legend Member
User avatar

Joined: Apr 4th, '08, 09:36
Posts: 549
Images: 0
Location: Perth
Gender: Female
Are you human?: I think...I hope so!
Location: Sou'West Oz
thanks guys... appreciate it.

_________________
"I shall either find a way or make one."


Top
 Profile  
Reply with quote  
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 21 posts ]  Go to page 1, 2  Next

All times are UTC + 8 hours


Who is online

Users browsing this forum: No registered users and 3 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  

Powered by phpBB® Forum Software © phpBB Group
Portal by phpBB3 Portal © phpBB Türkiye
[ Time : 0.105s | 18 Queries | GZIP : Off ]