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Timber frame bandsaw

7/18/22       
Joseph

I want to build timber frame items. I dont want to spend 7000+ for a portable bandsaw by Mafell. I am thinking it should be able to by a small bandsaw and reconfigure it to make it portable.

Any Ideas, I am not a machinist but am a quick learner.

Any help or suggestion would be appreciated.

Regards, Joe

7/19/22       #2: Timber frame bandsaw ...
RichC

Learning isn't the problem, it's the cost of fabrication equipment and design and testing time. You'll need a metal cutoff miter saw, welder with a helmet, gloves, and arm protection. You'll also need a grinder for smoothing those beginner welds. Then you'll need a way to produce the pivots. There can be no slop in the bearings, so you'll either have to turn a slip fit for the shafting, or buy bearings that fit some precision ground steel rod. Then you'll need some way to fixture all this up when welding to keep everything parallel and perpendicular. Then lastly you'll need to invent some type of clamping system to hold the machine to the timber. I'm thinking with raw materials and all the machinery, you might have as much as $5,000 in your system. Less if you can invent assemblies that don't need precision. Then hope you did it right and it works. Good luck!

7/19/22       #3: Timber frame bandsaw ...
Joseph Jolly

Thanks, I was thinking of purchasing a grizzly metal cutting bandsaw, cutting the part that holds the two wheels apart, adding 1/2"X2" bar stock to spread the wheels apart far enough to be able to cut a 12" beam. Changing the blade system to fit a 1/4" skip tooth blade and maybe speeding up the motor. The Bandsaw has to either sit on the beam that is being sawn or some type of articulating arm that is counter weighted or ???

Still in the brain storming mode. The band saws that are on the market are not very sophisticated.

7/19/22       #4: Timber frame bandsaw ...
David Sochar

You might be surprised. Today's bandsaws ae accurate and powerful. You are considering the cheapest saw and asking more of it than it can do. Your product will show the weakness of your plan.
I would look at 20"or larger, and able to pull a 3" blade.

7/19/22       #5: Timber frame bandsaw ...
Joseph

As in my first post i need a portable bandsaw that can be placed on a beam that is too large to put on a standard bandsaw, thus the portability.
If you look at the Mafell bandsaw you see there is not much to it and they charge 7000. I know they spent years developing it but there really is not that much involved in a bandsaw. 2 Wheels, a motor, the housing that holds them parallel and straight.

I just thought with a 500 dollar Grizzzly modified it might work. The one down side is they are made of cast and that makes them heavy.

I thought about building an articulated arm like the Dariojsn33 Italian bandsaw. Or maybe a counter balance cable system to make it light enough to handle.

Thanks for the thoughts :-)

7/19/22       #6: Timber frame bandsaw ...
Dick

[removed]

7/19/22       #7: Timber frame bandsaw ...
Joe

Excellent idea. I had sent an email to the company making the O&M model asking for some pics of the construction and a video of it in operation. Not heard back yet. Only 2 pics on the internet of this unit. Your idea of getting a bandsaw and then building fron scratch sounds good.
I like the Dorian sn33 but looks pretty expensive :-)
Thanks!

7/19/22       #8: Timber frame bandsaw ...
Dick

[removed]

7/19/22       #9: Timber frame bandsaw ...
Joe Member

The world is definitely going downhill in a handbasket when humans can't even communicate without being mean

7/20/22       #10: Timber frame bandsaw ...
Mark B Member

I think the hardest part you'll have in any sort of fabrication is maintaining enough rigidity in the spine of the saw to adequately tension the blade while keeping it light enough to be reasonably portable. Thats why the Maffell is so expensive (in addition to it just being a Maffell).

I cant fathom any type of weldment spine ever being strong enough to tension yet be light. Thats the heart of the saw is the spine.

7/20/22       #11: Timber frame bandsaw ...
Joe Calhoon Member

Timber Tools sell the Hema portable bandsaw. I don’t know how that price compares to Mafell.

7/20/22       #12: Timber frame bandsaw ...
Bruce H

I built a band saw, while not portable it can be done. Might have bought something for less than my effort. Learned a lot in the process.


View higher quality, full size image (1096 X 1683)


View higher quality, full size image (1185 X 1683)

7/20/22       #13: Timber frame bandsaw ...
Joe Member

Nice :-)

7/20/22       #14: Timber frame bandsaw ...
Mark B Member

Wow. Thats a feat and Im sure a lot of work. Pretty impressive. I have all the fabrication capacity here in the shop including light machining, and I definitely have the ideas/inspiration, but I have no where near the commitment and perseverance.

7/21/22       #15: Timber frame bandsaw ...
KEVIN JENNESS

Here's one that will cut 8" deep.

If you want to make money with an easily operated accurate bandsaw that will cut 12" deep, pony up for the Mafell (or the Hema if available). Trying to modify a smaller metal cutting saw is unlikely to produce the results you want, and engineering your own will cost as much as buying the real thing if your time is worth anything. Mafell products are expensive but they do the job. Buy once cry once.

Everett portable bandsaw

7/21/22       #16: Timber frame bandsaw ...
Karl E Brogger  Member

Website: http://www.sogncabinets.com

I used to work in the cabinet shop that a builder owned. They also owned a timber frame shop. I got to use one of those Mafell bandsaws a couple of times. I fell in love and I'm a fanboy for life.

They're worth what you pay, which is a lot.

I like to tinker, but I think your contraption will cost about the same, and work half as well.


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