The Framers Forum

I need to make a double mount with coloured bevels but I just can't quite get my head round how.

I can make a single coloured bevel. I can make a double mount (sticking together before cutting the inner window). But how do I go about double/coloured? Do I have to cut the double mount differently, or separate it to paint it?

I have bought Russ Wood's guide and spent this afternoon reading many threads on here and watching videos, but I can only find how to do the masking, cutting and painting on a single mount.

I must be missing something obvious! Help?

Cut the double mount as normal but only stick it together with two small dabs of DS tape so it will come apart easily.

Paint both bevels and stick mounts together permanently when dry, you just have to eyeball the reveal

If you haven’t tried it without masking, watch this video from about 18:30.




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Thank you JKX.

Eyeball putting it back together? That sounds a bit scary. Is there any way to help it go back in the right place?

Well I've never done it, but I have had to take apart a double mount and re-assemble it with a mount slip between the two mounts and eyeball that, many times - no other choice really. But I suppose for this, if you made sure the fallout areas were stuck together good and proper before cutting, you'd have a template to re-assemble the two mounts on.

Lots of practice coming up for me, thanks.

When you temporary stick the inner mount to the outer mount before cutting the inner mount do some pencil marks over the inner to outer mounts at the back, top bottom and sides to help refitting it back into place.

Thanks, I’ll try that

Do both!

Draw some random lines across the back of the boards, stick together, margin area lightly, fall out area properly.

Once painted and dried, to reassemble put double fallout face down and fit largest aperture over it with registration marks aligned then fix the smaller aperture to it over its fall out in the same way.

Thanks, I shall be tackling this on Friday so I'll report back.

Reporting back
I need to get quicker but the customers are happy.

Congrats! How did you do it, masked bevel or freehand - and how did you reassemble?

You can get coloured core boards - but all I can find on line now is crescent brite core from Wessex, and they are SO expensive! £20 a sheet plus VAT in 5's, £22 or £23 singly.

https://www.wessexpictures.com/Crescent_Britecore.html


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Ooh I like those but also ouch. I should look at other types of board.

I played safe with masking, they needed a couple of coats to look uniform and I wasn't brave enough.

Assembling them I tried both ways - marking on the back first, then eyeballing and 'micro-nudging' with a steel rule. Justintime showed me how using a bead of glue would let me adjust the position before pressing it down permanently on to the double sided tape. After a couple of attempts I found that way easier. On the reverse my register marks ended up pretty bang on.

There are other less epensive colour core boards I'm sure - Nielsen do some, or at least did, their website seems to be out of action. Colourmount?

Regards re-adjusting - hopefully you use DS tape and (mostly) glue to fix double mounts etc anyway, just in this case no glue until final assembly.
To enable future separation, should the need arise, and this is for other things too, especially rebate spacers, use dots of glue instead of beads, then it can be "popped" apart.

Yes, I use glue but I have always tended to spread it out evenly all over rather than beads or dots, which doesn't make it easy to reposition things, so that's helpful to know thanks.