Jump to content


Photo
- - - - -

What do you use for cutting end-discs?


61 replies to this topic

#1 Ubehage

Ubehage

    Pyrotechnician

  • Donator - HE
  • PipPipPipPip
  • 492 posts
  • Gender:Male

Posted 22 February 2016 - 07:02 PM

I am looking for a tool to cut circles, for making end-caps and such...

 

I have found a few which turned out to be different pieces of crap.

 

After doing a bit more research, I found that the Allpax "Gasket Cutters" should be some of the best.

But, those are kinda expensive to get in the EU. So I'm wondering if there are other alternatives.

 

What do you use for cutting your end-discs?


Blowing shit up is not a goal in itself. Seeing your device working the way you intended, is the greatest satisfaction of all.


#2 OldMarine

OldMarine

    Firebreather

  • Donator
  • PipPipPipPipPip
  • 2,498 posts
  • Gender:Male
  • Location:Lebanon Tn
  • Interests:Interests? Everything interesting!

Posted 22 February 2016 - 10:03 PM

Look for the Spearhead brand. It's the same thing basically and parts are interchangeable. I just found me an Allpax for $45 on eBay but I'm in the US. How much is international shipping? I've never checked.
Come on! Name one other hobby in which you cheer as your money and hard work go up in smoke!

#3 Mumbles

Mumbles

    Grandmaster

  • Admin
  • PipPipPipPipPipPipPipPipPipPip
  • 11,533 posts
  • Gender:Male
  • Location:Above You

Posted 22 February 2016 - 10:15 PM

There are several more economic brands very similar to Allpax.  Other gasket cutters will work.  They're often not quite as well built or robust, but they'll get the job done.  An Allpax will probably outlast you.  There are also drillpress based ones available pretty cheaply, but they're not my favorite.

 

For disks smaller than maybe 50mm, you may want to look into arch punches or sharpened pipes.  You can cut pretty small with a gasket cutter, but it tends to get sort of tedious, especially if you need a lot. 


  • Ubehage and PyroDanTheMan like this
Just so you guys quit asking, here is the link to the old forum. http://www.xsorbit2....forum/index.cgi

The sky is my canvas, and I have 2,113 pounds of powdered paint in the workshop.

#4 OldMarine

OldMarine

    Firebreather

  • Donator
  • PipPipPipPipPip
  • 2,498 posts
  • Gender:Male
  • Location:Lebanon Tn
  • Interests:Interests? Everything interesting!

Posted 22 February 2016 - 10:54 PM

Hey Mumbles, I've seen references to arch punches but haven't seen them. Are they different from hollow leather working punches?
Come on! Name one other hobby in which you cheer as your money and hard work go up in smoke!

#5 Mumbles

Mumbles

    Grandmaster

  • Admin
  • PipPipPipPipPipPipPipPipPipPip
  • 11,533 posts
  • Gender:Male
  • Location:Above You

Posted 22 February 2016 - 11:54 PM

They look pretty similar actually  Arch punches have a tapered end and cutting face, as opposed to being straight like most leather punches.  I'm not sure if there is a particular difference, though assume they have their own applications.  My tool knowledge is alright, but I don't have a particularly in depth understanding of all the intricacies.  I've never really done leather working past punching a few extra holes in a belt, so I'm not very familiar with it. 

 

I believe Northern Tool, Enco, Harbor Freight, or one of the other Chinese import tool companies used to offer a pretty inexpensive set, but I can't seem to find one anymore.  In smaller sizes they come with drill press mountable cutters.  They make quick work of chipboard.  I've seen a few people who rounded off the handles for larger arch presses for the same applications.  You can sharpen hole saws to do the same for larger sized disks too.  Since we care about disk size, not hole size, you need slightly oversized ones though. 


Just so you guys quit asking, here is the link to the old forum. http://www.xsorbit2....forum/index.cgi

The sky is my canvas, and I have 2,113 pounds of powdered paint in the workshop.

#6 schroedinger

schroedinger

    Firebreather

  • Full Member
  • PipPipPipPipPip
  • 1,505 posts

Posted 23 February 2016 - 02:02 AM

Ubehage, for everything up to 33 mm you can cheaply get a set of hollow punches from china.
Any bigger is not so easy in the EU. I searched long for gasket cutters, but most ones you get are just plastic toys. Cutting gaskets is just no real theme over here.
But you can get hole saws for 10 of Amazon/Ebay. You want the type that is only a single bar with two adjustable pins for cutting.

If you only need a couple sizes, You can also make easy cutters of fixed sizes yourself. Fix a razor blade (or a more stable one) to tne end of wooden/metall rod and drill various holes for inserting a center pin. These work best with just one fixed pin.
  • Ubehage likes this

#7 Bangkokpyro

Bangkokpyro

    Pyromaniac

  • Full Member
  • PipPipPip
  • 111 posts
  • Gender:Male
  • Location:Thailand

Posted 23 February 2016 - 08:37 AM

Nothing compares to an Allpax for cutting end discs, you can find second hand ones or vintage models ( work just the same) on ebay for less than 100 quid.


  • Ubehage likes this
Pyro Holidays In Thailand
http://www.bangkokpyro.com

#8 OldMarine

OldMarine

    Firebreather

  • Donator
  • PipPipPipPipPip
  • 2,498 posts
  • Gender:Male
  • Location:Lebanon Tn
  • Interests:Interests? Everything interesting!

Posted 23 February 2016 - 09:28 AM

Paul, your video of cutting discs with the Allpax was what sold me on it. I've got just enough arthritis to make scissors a real pain.
Come on! Name one other hobby in which you cheer as your money and hard work go up in smoke!

#9 rsambo

rsambo

    Playing with fire

  • Full Member
  • PipPip
  • 47 posts
  • Gender:Male
  • Location:UK

Posted 23 February 2016 - 03:28 PM

I completely agree with Paul. Nothing beats an Allpax gasket cutter - have never looked back and use to cut anything down to 3/4 inch. Money well spent.


  • Ubehage likes this

#10 lloyd

lloyd

    Firebreather

  • Donator
  • PipPipPipPipPip
  • 1,952 posts
  • Gender:Male

Posted 23 February 2016 - 03:44 PM

Money in THIS hobby is a variable, based upon desire and need.

 

To be sure, books and good tools are expensive, but the first gives you a foundation, and the other allows you to continue to build, almost forever!

 

Lloyd


Edited by lloyd, 23 February 2016 - 04:00 PM.

  • Ubehage likes this

"Pyro for Fun and Profit for More Than Fifty Years"


#11 mikeee

mikeee

    Firebreather

  • Donator - HE
  • PipPipPipPipPip
  • 1,014 posts
  • Gender:Male

Posted 23 February 2016 - 08:25 PM

You can easily make a tool similar to the Allpax tool, when mounting the razor blade tip that does the cutting

through the material it needs to be perfectly aligned with the pivot pin that the cutter turns on. If the cutting point leads 

or lags the center-line of the tool it will cut poorly and the blade will drag through the material. Using a cutting board that

has a groove cut into the board at the different diameters of discs you want to cut also makes it easier for the cutter to

make its way through thicker materials. A sharp blade is a must, or you will have to make several passes on heavier materials.

The really hard thick materials will require a sharp new blade and several passes of the cutter. 


  • Ubehage likes this

#12 calebkessinger

calebkessinger

    Pyrotechnician

  • Donator - HE
  • PipPipPipPip
  • 590 posts
  • Gender:Male
  • Location:Missouri
  • Interests:Making tools, Cannons, Rockets,
    Mostly just lighting rockets! :)

Posted 24 February 2016 - 06:19 PM

I'm gonna have to figure out how to build a nice cutter aren't I.  Like everything else I want,  I just have to get mad and build it! 

 

I better go look at a picture of one before I start.  :) 


www.woodysrocks.com 
Pyro tools made by a pyro.
Light it up!
https://www.youtube....LBbbcufSqUn48bA

#13 OldMarine

OldMarine

    Firebreather

  • Donator
  • PipPipPipPipPip
  • 2,498 posts
  • Gender:Male
  • Location:Lebanon Tn
  • Interests:Interests? Everything interesting!

Posted 24 February 2016 - 06:25 PM

Found this one on pyrocreations. Looks pretty good and not too expensive http://www.pyrocreat...il/55456/282519
  • Ubehage likes this
Come on! Name one other hobby in which you cheer as your money and hard work go up in smoke!

#14 memo

memo

    Pyrotechnician

  • Donator
  • PipPipPipPip
  • 735 posts
  • Gender:Male
  • Location:central america
  • Interests:gold mining, now fireworking

Posted 25 February 2016 - 07:49 AM

i have one of those cutters old marine, for what they are 45.00 is alot, they work ok. i cut a bunch of 5 inch disk. they started at 4.5 inches and ended at all most 4.75 i built a 3 break shell and when i was getting ready to mate the 3 shells together i tested them for clearance in the tube and had none. that can be a real problem. i started checking my other size diskes and it was the same thing , they had size drift also. I am going to get a allpax, you can get a used one for the same price or a little more. IMO it is worth getting the allpax. I wish I would have.

 

memo


  • Ubehage likes this

#15 dynomike1

dynomike1

    Firebreather

  • Donator - HE
  • PipPipPipPipPip
  • 1,224 posts
  • Gender:Male
  • Location:W. Tn.
  • Interests:Blowing Beaver dams, Shooting Cannons, Hunting, making fireworks.Buying guns.

Posted 25 February 2016 - 12:41 PM

This is the one i use, never had any problems with it.

http://www.ebay.com/...&chn=ps&lpid=82


  • Ubehage likes this
There are very few problems that cant be solved with explosives.
                             Explosives are a bang up job.

#16 OldMarine

OldMarine

    Firebreather

  • Donator
  • PipPipPipPipPip
  • 2,498 posts
  • Gender:Male
  • Location:Lebanon Tn
  • Interests:Interests? Everything interesting!

Posted 25 February 2016 - 04:55 PM

Well darn. Just bought the Allpax cutter but forgot I'd bid on a Spearhead brand a while back. Today I won so now I own 2 cutters. Most of the parts are interchangeable so there's that.Screenshot_NormalAppImage(1)-picsay.png
Come on! Name one other hobby in which you cheer as your money and hard work go up in smoke!

#17 mikeee

mikeee

    Firebreather

  • Donator - HE
  • PipPipPipPipPip
  • 1,014 posts
  • Gender:Male

Posted 25 February 2016 - 06:29 PM

OldMarine,

 

You should be able to find a trade deal with someone on the site for your spare cutter.

Sooner or latter everyone breaks down and gets a good quality cutter.

Maybe Caleb will start making a dual purpose cutting tool, with a fuse punch or something built into the cutter,



#18 OldMarine

OldMarine

    Firebreather

  • Donator
  • PipPipPipPipPip
  • 2,498 posts
  • Gender:Male
  • Location:Lebanon Tn
  • Interests:Interests? Everything interesting!

Posted 25 February 2016 - 10:02 PM

Dug around in the packing and found there were two boxes of new blades included. Didn't see them in the original pics so a pleasant surprise was had!
Come on! Name one other hobby in which you cheer as your money and hard work go up in smoke!

#19 memo

memo

    Pyrotechnician

  • Donator
  • PipPipPipPip
  • 735 posts
  • Gender:Male
  • Location:central america
  • Interests:gold mining, now fireworking

Posted 26 February 2016 - 10:12 AM

2 allpax 2 sets of blades that is just 2 good

 

memo



#20 mikeee

mikeee

    Firebreather

  • Donator - HE
  • PipPipPipPipPip
  • 1,014 posts
  • Gender:Male

Posted 27 March 2016 - 01:26 PM

Finished a smaller more user friendly cutting board for the allpax style cutters.

I cut the grooves into the board for the common size end discs and made the cutting board smaller.

The pre-cut grooves reduces drag on the cutting blade and helps keeps them sharp. 

The board that Allpax sells is a cheap piece of fiber board. 

 

Allpax Cutting Board.jpg


  • Ubehage likes this



Reply to this topic



  


0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users