Prepare angled reveal for blackout cassette blinds

[Tennentslager]

I’m thinking to cut a (say 4*2) to made a triangular prism and bond it to the reveal.

the blackout blinds need to be mounted square to the window but this is a tenement flat with deep angled reveals.

any other thoughts?

Blinds are highly reviewed 

https://www.blocblinds.co.uk/

I want 100% black as the boy is waking with the light at 5.30!

[Ferdinand]

Get some angled blocks the right size 3D printed?

 

@Temp does them in black... ?.

 

F

[Tennentslager]

Checked all over the internet for blackout solutions and this cassette blind is the fogs gollox 

I have a skill saw but how to make this cut on a1860 length of 4*2 and keep it accurate?

guess it’s a cut from both sides using a table guide 

[Ferdinand]

I would get that done by my timber supplier at the time of purchase.

 

It should only cost a few ££, and will save oodles of faffing.

 

F

[Tennentslager]

Local guy said no not worth his time...so

could do with a new saw blade but slowly slowly 

[Simplysimon]

@Tennentslager do you need split 4x2?

30x50 screwed to the window to take the cassette, finished with a facing to the front to cover the gap, facing could be wide enough to also cover the cassette.