Multi-Angle Mitre Jigs

[Cerflun Designs]

I’m looking for a multi-angle mitre jig with (30), 45, 60, 90, 120, 135 degree angles. The 30 deg is not essential, but is preferred.

Can anyone recommend one? It’s usage will be light, and would prefer it if the retailer accepts shirt buttons and/or very naughty children as payment... I can throw in a couple of smelly dogs as a Brucey Bonus. 😉

Many thanks,



Living my life, on my terms.

[Dennis]

It doesn't exist with that many angles for tube and wire. For sheet, you would score a line with the aid of a protractor. So it looks as if the dogs are safe.

What do you intend to do with it? Of course there are mitre jigs for framing, freely available on line and they have a built in protractor. Dennis.

[Cerflun Designs]

Hi Dennis,

It’s for making miniature picture frames, lockets, mini-boxes etc of less than 30mm and for making 3D geometric shapes (hence the need for different angles) from silver and copper.

[Cerflun Designs]

I found one on eBay with that many angles (allegedly), but I don’t know how good it is.11313

[Dennis]

No, I think you will find that the shapes are to get a grip on different profiles, but the angles available are only 45º, and 90º(meaning flush).

There are some with three angles, but not with as large a selection of grips.

Having made a lot of rectangular belt buckles with mitres, I found that even slight errors in holding rectangular or square wire meant that the parts did not match and had to be filled in. So don't hold your breath.

Of course round wire is much more forgiving. Dennis.

[Cerflun Designs]

The jig that claims to enable 30, 45, 60, 90, 120 & 135 degree cuts is here, £79.99:

https://www.ebay.co.uk/itm/MITER-JIG-VICE-TUBING-CHENIER-VISE-TUBE-JOINT-CUTTER-FILING-BLOCK-JEWELERS-TOOL/261686808253?hash=item3cedbfcebd:g:JAYAAOSwj0NUi15 f



The 45, 60, 90, 120 & 135 degree one from Cousins is £59.99:

https://www.cousinsuk.com/sku/details/cutters-guillotines-shears/m48851



The 45, 60, 90 degree one is here (I think this is the same as the one you attached), £59.99:

https://www.ebay.co.uk/itm/JEWELER-CUTTING-MITER-FILING-TUBING-JIG-SAW-VISE-5-WAY-SUPER-HARD-STEEL-JIG-VICE/261595721803?hash=item3ce851f04b:g:Q8wAAOSwPYZU4Yr X



The 45 & 90 degree one is here, £44.99:

https://www.ebay.co.uk/itm/JEWELER-CUTTING-MITER-FILING-TUBING-JIG-SAW-VICE-TUBE-WIRE-SHEET-CUTTER-VISE/251648086746?hash=item3a976512da:g:J2oAAOSwkNZUi1u 4



What I’m finding confusing is the very thing you mentioned about the number of cut holes and tiers. The most expensive one claims to enable six different angled cuts, and the detailed photos appear to show that the tiers have different angle depths within the slots, as opposed to the whole tier being, for example, 45 degrees. This one also has the largest jaw opening of 25mm, according to the seller, which is the size I need.

I have spent hours trying to figure this out, which is why I posted here. Are they counting the offcut angle for the 30, 120 & 135 degrees?

[Dennis]

Well, that's all news to me and I withdraw from further comment until i have one in my hand.

Cousins will not accept returns, as they claim business to business rules. I have had things from Tools n Tools and they can be a bit unusual, but they work.

If they will accept returns, get one on approval. Dennis.

[ps_bond]

Similarly, 60 & 30 gets you 90, 180 less 60 gets you 120...

So are we of the opinion it actually does 60, 45 and 90?

[handmadeblanks]

The jig that claims to enable 30, 45, 60, 90, 120 & 135 degree cuts is here, £79.99:

I have spent hours trying to figure this out, which is why I posted here. Are they counting the offcut angle for the 30, 120 & 135 degrees?


Hi,

My guess it is based on the simple rules of geometry where a straight line is 180° and a circle has 360°.

If you cut the end of a piece at 45° the remaining angle is 135° (180° - 45° = 135°) which you would end up with if you simply flipped the piece so the slope is now going the opposite way. i.e. bottom to top, then top to bottom. (See my image attached)

11317

[handmadeblanks]

Similarly, 60 & 30 gets you 90, 180 less 60 gets you 120...

So are we of the opinion it actually does 60, 45 and 90?

I think this was a reply to my original post which I deleted because the image didn't attach properly. I have a similar jig so I would say yes, it does 60, 45, 90 and the other angles are the outside angles so to speak.

[Paul Kay]

I (very) recently did the same search and have one of each (a 2 slot and a 3 slot) to hand. handmadeblanks and other's summation is correct, 3 slots = 3 angles, no more, no less. Though the marketeers manage to inflate their capability by counting the 'reverse' angles also, so making a count of 2 for each of the 45/135 and 60/120 pairs. I'm surprised they didn't also count the 90/90 'pair' twice :) .

I achieved what I needed to do by using a model engineers mitre box with ultra fine slots and a 52tpi razor saw (I already had an older 'coarser' slot version from model making, so knew what to look for and where). Sometimes you need to think outside the jewellery tool box and the solution can also be a whole lot less expensive. Here: http://www.shipwrightshop.com/shop/contents/en-uk/d137_Zona-Saws-and-Precision-Mitre-Boxes.html

Both the plastic 'mini mitre box' and the aluminium 'thin slot mitre box' are designed for use with the Ultra Thin 52tpi razor saw, which itself is built to cut model engineering brass, so cuts Sterling Silver and Copper with ease and accuracy. They both have 45, 60 and 90 degree slots. It is also possible to adapt either of those boxes to cut a 30 degree angle.

P.S. If you do go down the Zona (or similar) mitre box and razor saw route, be aware that the saws are available in 2 depths, the deep bladed saw will work with both the shallow plastic and deeper aluminium mitre boxes, the shallow bladed saws will only work with the shallow plastic mitre box.

[Dennis]

These are also my favourite tools for starting a score line, prior to making a right angle. Dennis.

[Cerflun Designs]

Hi Everyone,

Thank you all for taking the time to help me out. I knew Dennis was right regarding the angles, I just couldn’t figure out how the retailers were getting their figures from. I may be a good accountant, but geometry has never been my strength (the irony there is not lost on me, given why I want the mitre in the first place!).

The Thin Slot Mitre Box and saw from ShipWright look good. I won’t be able to use them for tubing or wire as my hands won’t be able to hold them in place (I exchanged hands with a centagenarian) but it looks perfect for sheet metal.

End result is that I am going to invest in the Thin Slot Mitre Box and saw, plus a 45/60/90 mitre jig so that I get the best of both. At least now I can close the 29 tabs I have open in Chrome; they’re using up all of my memory!

Thank you all once again for your help.

:ta:

[Dennis]

You probably know this, but the problem does not end there. if you are making a mitred frame, the lengths need to be accurate too, so you need to allow for loss by filing.
Also it is best to work by outside measurements only, or you have to allow for loss by mitering Dennis.

[OliverThomas]

I very rarely started working with any kind of mitre jig.Now it is much more convenient to do everything on a computer using all sorts of lasers.

[Dennis]

Yes, that's the way to go, but some of us still enjoy testing our manual skills. It would be good to have a show and tell from you Oliver.
Kind regards, Dennis

[ps_bond]

I very rarely started working with any kind of mitre jig.Now it is much more convenient to do everything on a computer using all sorts of lasers.

Perhaps, but can you cut tins of processed pork with a laser?

Bye!