One-off strange shape mount cutting

ChrisR

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#1
Hi all, I have a weird requirement. I need to cut a piece of stiff material into an odd shape. It needs to be around 1 mm thick; I think mount board might do the job (sample in local framing shop looks a bit between 1 and 2 mm). The shape I want is basically a rectangle, but with a notch cut out of one edge, and two 4x5 inch cutouts. This might give a clue to the purpose; I'm trying to build a negative holder to scan 4x5 negatives on an Epsone V500. So I thought I'd have a try cutting the shape out of the mount board, after drawing the shape on the board, and using a Stanley knife or a box cutter. What I can't work out is what to put underneath to provide a firm surface that won't blunt the knife or destroy that surface (eg a table)

Any advice? It occurs to me that more of my assumptions may be wrong! Thanks
 
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#2
Cutting mat. Google it. It's green. Lots of places to get one from.

I use it for my mounting duties and 1:72 modelling! I'd recommend A2 sized, but if it's a small job, A3 will do.
 
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ChrisR

ChrisR

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Cutting mat. Google it. It's green. Lots of places to get one from.

I use it for my mounting duties and 1:72 modelling! I'd recommend A2 sized, but if it's a small job, A3 will do.
IMO you will need what's called a cutting mat.

Various sources:-
https://www.google.com/search?q=cut...roid-motorola&sourceid=chrome-mobile&ie=UTF-8

Edit ~ I really should refresh page before posting :LOL:
Thanks both. Quite a range of prices, but looks like Hobbycraft have an A3 one for a fiver!
 

sirch

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#7
I usually do things like that on the kitchen chopping board, we have a large wooden one and brownie points can be earned for cleaning/sanding it :)
 
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I too would recommend a cutting mat, made for the job and relatively inexpensive I have found in the past that it can be difficult to cut a straight line when using a bit of wood as the blade can follow the grain.
 
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#10
Thanks both. Quite a range of prices, but looks like Hobbycraft have an A3 one for a fiver!
Watch it in hobbycraft, they have cheap ones in the art department or others for around twice the price in the sewing department...with no difference I can discern.
 
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#11
Cutting mat and offcut of mount board is what I use to cut on.
Metal straight edge and Stanley knife should do fine, get decent blades and change them regularly, soon blunt.
 

Nod

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#13
Cutting mat is far better than most wood. Grain in wood boards has a habit of acting like rails, so can result in wobbly "straight" edges.

Chris, don't forget to colour the cut edge - matt model paint does the job very well (did the same thing to make a 6x6 slide carrier for my flatbed scanner a few years back.)
 
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ChrisR

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Cutting mat is far better than most wood. Grain in wood boards has a habit of acting like rails, so can result in wobbly "straight" edges.

Chris, don't forget to colour the cut edge - matt model paint does the job very well (did the same thing to make a 6x6 slide carrier for my flatbed scanner a few years back.)
Not sure why to colour the cut edge, Nod? Is this to avoid it being an artefact in the scan?
 

Nod

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#15
There's the potential for extraneous light to end up where you don't want it. Might not be a major problem but could be. More likely (or less unlikely!) with negs than mounted slides.
 
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