Cutting sheet metal - diyAudio
Go Back   Home > Forums > Design & Build > Construction Tips

Construction Tips Construction techniques and tips

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 25th August 2013, 08:19 AM   #1
diyAudio Member
 
DEQ+TheEnd's Avatar
 
Join Date: Nov 2005
Default Cutting sheet metal

I need some input on a practical problem Iíve encounter. Iím trying to cut 1.6mm sheet metal but are getting in to trouble with my tools and lack of knowledge.

First I tried to use my jigsaw set up with a strait ruler. Problem here is the blade just wanders off without any control until it brakes.
Click the image to open in full size.

Thinking I must be the smartest guy on the block I mounted my angle grinder to a plate like a table saw. Same problem. Even with the most expensive cutting disc from my hardware store the disk is flexing so much itís impossible to get straight cuts. What I learned is that more expensive cuttings disks will flex more before breaking.
Click the image to open in full size.

I donít know the specification for the metal used in the sheet other than it's very heavy, but actually rather soft to drill.
  Reply With Quote
Old 25th August 2013, 09:15 AM   #2
zane is offline zane  Australia
diyAudio Member
 
Join Date: Jul 2013
Location: Melbourne
Hi,
I assume you are cutting sheet steel? From my experience when cutting hard materials with a jigsaw, guides don't work. Best to go freehand on a slow speed with no pendulum. Don't forget the goggles!
With a thin steel cutting disc, same, go freehand.

Its thin enough to use snips, Maybe do a rough cut and then go back along your line and clean it up.
  Reply With Quote
Old 25th August 2013, 09:33 AM   #3
AndrewT is offline AndrewT  Scotland
diyAudio Member
 
Join Date: Jul 2004
Location: Scottish Borders
use freehand and turn the jigsaw to stay close to the "cut" line.
Finish with a file to trim to line.
__________________
regards Andrew T.
  Reply With Quote
Old 25th August 2013, 09:39 AM   #4
diyAudio Member
 
DEQ+TheEnd's Avatar
 
Join Date: Nov 2005
Thanks!

Yes it's steel plate, sorry I wasn't more clear.

I was afraid you would suggest freehand I've done that in the past. At one time I had a cutting disk that would not grind into my wood guide. But with discs I got now I don't get good result using wood rulers.

I'm afraid my "free"hand is not very trustworthy That's why I'm looking in to different setups.
  Reply With Quote
Old 25th August 2013, 10:04 AM   #5
zane is offline zane  Australia
diyAudio Member
 
Join Date: Jul 2013
Location: Melbourne
You can get circular saw blades that cut steel, I have one of these:

Metal Cutting Blades | Circular Saw Metal Cutting Blade Products | Austsaw
You can probably pick up something similar in your country

I have cut corrugated steel roofing, bit noisy but you get a really clean cut
  Reply With Quote
Old 25th August 2013, 10:27 AM   #6
diyAudio Member
 
DEQ+TheEnd's Avatar
 
Join Date: Nov 2005
Yeah, been looking something like that. Found one that could handle aluminum. But asking for something to cut steel plate thicker than 1.2mm I've so far draw blank. One probably need cooling for it to work.
  Reply With Quote
Old 25th August 2013, 11:21 AM   #7
zane is offline zane  Australia
diyAudio Member
 
Join Date: Jul 2013
Location: Melbourne
Check this out Rotary Hacksaw - YouTube
  Reply With Quote
Old 25th August 2013, 01:51 PM   #8
diyAudio Member
 
DEQ+TheEnd's Avatar
 
Join Date: Nov 2005
Thanks! Very impressive demo.

I've asked them if they have dealer her in Norway/Europa.
  Reply With Quote
Old 25th August 2013, 02:17 PM   #9
AVWERK is online now AVWERK  United States
diyAudio Member
 
Join Date: Jan 2004
Location: So Calif.
You can take it to a sheet metal shop that does air conditioning fabrication of ducts and so forth and they can shear cut it for you.
If cutting it yourself consider the proper blade and use cutting fluid to prolong blade life.
Or go to Harbor Freight and get the cheap right angle grinder with a thin 4" cut off wheel that will butter right thru it.

Regards
David
  Reply With Quote
Old 25th August 2013, 02:21 PM   #10
ODougbo is offline ODougbo  United States
diyAudio Member
 
Join Date: Aug 2011
Location: Maryland USA
I need one of these!!

Quote:
Originally Posted by zane View Post
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Cutting openings in metal panels akis Equipment & Tools 19 28th September 2013 08:37 AM
Sheet Metal Shear! dirkwright Equipment & Tools 10 26th January 2012 03:24 AM
Sheet metal cooling Skorpio Pass Labs 1 10th May 2008 12:49 PM
Sheet Metal Gauge kafka007 Tubes / Valves 10 15th November 2006 01:40 AM
cutting metal/plastic sheets ?? kambule Everything Else 0 30th June 2006 10:58 PM


New To Site? Need Help?

All times are GMT. The time now is 02:22 PM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright ©1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2