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  #11  
Old 02-04-2013, 09:51 AM
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Default Re: Possible - New idea for brick cutting table

Each dome brick was cut w/ an angle and a bevel.
This ensures an almost mortar-less joint on the inside of the dome.

I cut 1 full brick into 2 angled & beveled bricks by making 3 cuts.
e)

I marked the bricks as 1up, 1down, 2up, 2down to keep track of each brick as I made the cuts.


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  #12  
Old 02-04-2013, 09:52 AM
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Default Re: Possible - New idea for brick cutting table

Each dome brick was cut w/ an angle and a bevel.
This ensures an almost mortar-less joint on the inside of the dome.

I cut 1 full brick into 2 angled & beveled bricks by making 3 cuts.

I marked the bricks as 1up, 1down, 2up, 2down to keep track of each brick as I made the cuts.

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  #13  
Old 06-29-2013, 10:59 PM
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Default Re: Possible - New idea for brick cutting table

I cut all my bricks with a cheap angle grinder, just a small one, with diamond blade. OK, my bricks are quite soft, but it's handy to be able to use the grinder to take off any bits that get in the way.
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  #14  
Old 10-01-2013, 04:42 AM
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Join Date: Jul 2013
Location: Shepparton, Australia
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Default Re: Possible - New idea for brick cutting table

Great Jigs!
Ive been lurking about for some time now (my better half thinks its been far too long wihtout some WFO action) as I go through the process of planning my build. 1000mm (40').
Can I ask please what you refer to with bevel and angle.
I can see why the sides of the brick need to be cut to allow the bricks along side to sit tighter together. Is this what you refer to as the bevel?
What then is the angle cut side and why is it needed.
Sorry for the newbie questions? Just tryin to make the least amount of mistakes possible.
Grant
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  #15  
Old 10-01-2013, 11:40 AM
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Default Re: Possible - New idea for brick cutting table

Hi Grant,
Take a look at the first few entries by MrChipster, in this thread.

I re-posted his picture below.
If you follow his description (also documented in my build), you will see how 3 cuts on a full size brick result in (2) half bricks w/ the proper angle & bevel.

See the attached pic below.
See how the front face it thinner @ the top, compared to the bottom?
I would consider this the bevel cut.

Notice how the top face is thinner in the front, compared to the back.
I would consider this the angle cut.
If you did only angle cuts on the sides, the bricks would fit together perfectly when laying flat. But once you lift the back of the brick, as required for each chain, the bricks would separate again.
Hence the need for the bevel cut.

Regardless of semantics, the combination of those (2) angles allow the bricks to come in contact without there being a triangle-shaped gap between them, which would require mortar.

It sounds complicated.
But try it out w/ a couple bricks.
Dry fit them together and increase the angle by hand, using shims.
It will make sense when you see it.
Hope this helps.
Attached Thumbnails
Possible - New idea for brick cutting table-27112d1317414084-possible-new-idea-brick-cutting  
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  #16  
Old 10-01-2013, 02:17 PM
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Location: Shepparton, Australia
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Default Re: Possible - New idea for brick cutting table

Thanks Todd. I couldn't work out what sides and cuts were referred to the angle cut and the same for the bevel.
Scoured myself a 14" brick saw last week so the fun is about to begin.
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  #17  
Old 05-19-2015, 02:18 PM
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Join Date: Apr 2014
Location: Luxembourg
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Default Re: Possible - New idea for brick cutting table

Quote:
Originally Posted by mrchipster View Post
The cutting of the bricks then becomes very simple.

1) Set the desired bevel angle on the jig by shimming the upper board to the desired angle. This gets rid of the inverted V's.

2) Set the brick on the left side of the jig so as to remove enough of the right side of the brick to get a full cut on the brick. Make cut #1.

3) Turn the brick over 180 degrees, leaving the freshly cut side on the right.

4) Move the brick to the right to position for cut #2 and make cut #2.

5) turn brick over 180 degrees one more time, leaving newly cut side on the right again.

6) Move brick to the right to position for cut #3. and make the final cut.

You now have two identical dome bricks with 3 cuts.

Note: when cutting bricks into 3's it is advisable to cut both ends off of the brick before making the final brick section otherwise the brick section will be small and hard to hold.

Chip
It has taken me a small bit of time to get my head around this, but I think I have it now (from a concept and how it works point of view).

Very old thread I know, but on the saws people are using, could it work on a fixed height saw? I.e saw is fixed 5 inches above the table? If I was to use two 2x6s, there is not enough space for the brick to fit between them and the saw?

Is there a new improved version of this type of jig also that anyone is aware of?

Thanks
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  #18  
Old 05-19-2015, 06:12 PM
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Default Re: Possible - New idea for brick cutting table

I was using a 14 inch saw with adjustable height cutting blade.

If you make the jig out of thinner materials... Even metal. It will still work. Having the brick support table on the opposite side of the motor and drive axle will give you additional space to work with.
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