Thread: 135 degree mitre clamp

I have those type clamps in the workshop.

Originally Posted by planemaker

I have those type clamps in the workshop.

Are they any good I wonder?

Would a band clamp work.
I have one which I use on boxes and love it.

Cheers Matt


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I was wondering if there ever was a 135 degree mitre clamp say woden, recordor stanley or something.
After searching the nearest I could come to was this Adjustable Clamp though flimsy looking:

https://www.amazon.com/Adjustable-Cl.../dp/B0009JGYH0

People have made blocks to clamp to for this purpose. However that's all fine if you have an accurate mitre in the first place to make the block. A 135^o mitre clamp would be really just great even a vintage tool as I have many of them and find them more useful than a lot of tools on the market.

the example One pound linked to is more of a holding device than a clamp

for clamping you really need the ability to pull the joint together, which is where clamping blocks, or cauls, and F clamps are needed

Originally Posted by Simplicity

Would a band clamp work.
I have one which I use on boxes and love it.

I was also going to suggest a band clamp. Carbatec sells the Bessey model. I've used it on picture frames extensively and it worked great.

Cheers,
Luke

I had considered a band clamp but was worried that I might not get 135 degree without some sort of jig/block. That's why I thought a mitre corner clamp like the 90 Degree standard ones would be good. Nevertheless it is good to hear that good results are obtained with band clamps or at least with 90 degree corners. I have never used them myself. Also as it is only two sides a band clamp might not work so easily.

If the task is to join two pieces to make a 135 degree joint -- which if I remember correctly is one corner of an octagonal frame -- can I suggest you make yourself a jig to hold the pieces at the correct angle and then pull-up the joint using glue blocks and an F-clamp

Originally Posted by ian

If the task is to join two pieces to make a 135 degree joint -- which if I remember correctly is one corner of an octagonal frame -- can I suggest you make yourself a jig to hold the pieces at the correct angle and then pull-up the joint using glue blocks and an F-clamp

At the end of the day this is going to be your best option. Buying something that's made to handle a generalized situation is one thing, but spending an hour or two to make the appropriate clamping jig is really the right move. Shouldn't be too terribly difficult.

Expensive but I'm sure it works. Bessey WVS-4 Multi-Angle Vise Set

I have one of these clamps and I agree with Ian. They are designed to hold two pieces together at 90 degrees while they are being welded. For woodworking you need to be able to apply pressure to bring the correct mitres together and this clamp will not do that.

Originally Posted by ian

If the task is to join two pieces to make a 135 degree joint -- which if I remember correctly is one corner of an octagonal frame -- can I suggest you make yourself a jig to hold the pieces at the correct angle and then pull-up the joint using glue blocks and an F-clamp

yes I think that might be the way to go.

thanks for all the input from everybody - any other suggestions are more than welcome.

I also came across these that like usual I was dismissive of:

https://www.youtube.com/watch?v=ihDOaGdCszs

they are:Blokkz' Universal Clamping Block

that are used with f clamps - they pretty much add up to the block and clamp method but are more ready off the shelf to use.