I was asked to explain a bit more about the Silhouette Cutter over on the Guild Forum and thought it worth repeating my post here too. The Cutter is a device originally designed for crafting - the making of greetings cards, doilies etc. My cutter is a Silhouette Cameo 2 from Silhouette America. My model has now been superseded by the Cameo 3. These are around £250 Silhouette also produce a couple of smaller versions, the Portrait, and the Curio. The portrait is effectively a smaller version of the Cameo in that the Cameo will take a cutting mat of 1' x 2' (300 x 600mm) whereas the Portrait is only 8" wide and will nominally take a 8" x 12" (203x 300mm) cutting mat. In reality both would take a much longer cutting mat if you were able to get someone to make one up for you. I have two sizes of cutting mat which I use for different things - 300 x 600 and 300 x 300. I use the smaller matt for cutting details and the longer one for van and coach sides. Replacements are around £18 for the longer ones and £12 for a pair of smaller ones depending where and when you buy them. How long they last depends' on how much you use them. I got a couple of years from my first two mats but found that the stickiness wore off the small one and I had to resort to using pieces of masking tape to hold the styrene sheet in place. Eventually the edges of the mat wear out and it will no longer retain the registration and the mat wanders while cutting ruining the cut. The cutters come with a piece of free software - Silhouette Studio which is used to control the cut and you can draw with it but I find it a bit clunky. Anyone who is proficient using a CAD package will find it easy to draw for cutting but if using a CAD package you need to save it as quite an old version of DXF to import it into Silhouette Studio. I must confess that despite working in IT, I have never managed to grasp CAD packages so I was really quite pleased when I read about people using Inkscape which is more akin to Corel Draw than traditional CAD and I found it easy to pick up and work with. The bonus is that it too is free. - https://inkscape.org/ What I did do (or rather my good lady did), was to buy the upgrade to Silhouette Studio which is the Designer Edition (approx £25). This allows the native Inkscape.svg files to be opened directly in Silhouette Studio without having to save into a different format for import and cut. How it works is that the cutting mat moves in one direction and the carriage that holds the blade moves in the opposite axis and the blade is free to rotate in the direction of travel so a combination of movement by the cutting mat and carriage allows circles to be cut. The simplest way to describe it is to imagine an inkjet printer with a blade instead of a print head. The key thing to remember is that the blade cuts by being dragged across the surface of the styrene, it doesn't spin in the manner of a milling cutter. It's limitations are that it will only cut through 10 thou (0.25mm) but you can score and snap 20 thou (0.5mm) it won't take anything thicker. I am led to understand that you can cut through 15 thou bt I haven't been able to buy any 15 thou in 300 x 600 sheets to try it. I buy my styrene sheets from EMA models - I have no connection to them other than as a satisfied customer. The main reason that I buy from them is the sheet size that they sell fits the cutter directly. Whereas other suppliers tend to sell sheets in standard format A4/A3 sizes etc. Which would mean cutting them to size before use and potential wastage. In reality once you get the hand of it you can actually make use of quite small off cuts as long as you make sure that you position both the drawing and the offcut in the same position on the cutting mat. Sheets of HIPS from EMA are currently £1.20 for 0.25mm and £1.40 for 0.5mm - size 305mm x 660mm. The downside is the postage which due to the size of the parcel isn't cheap but doesn't tend to go up too much the more you buy so I tend to order £50/£60 worth at a time to make postage more cost effective. - I seem to recall it was £6.95 for my last parcel of £60 worth of sheet and Plastruct. I use DLimonene bought by the litre from eBAY to stick up my layers of styrene together having found Mek etc. a bit aggressive on the thinner sheet to the point of melting it. Limonene takes a bit longer to set and I usually place my layered up sections between two sheets of toughened glass (shelves from an old fridge are ideal) for a minimum of a couple of hours but overnight is better if you can. What can you do with it for railway modelling? You are to a degree only limited by your imagination and the ability to translate what you want into layers to build up either strength or levels of detail. For example I tend to build up wagon or coach/van sides from 3 layers of 0.5mm them add details such as hinges, washer plates etc. cut from 0.25mm So far I have made with the aid of the cutter parts for: Open wagons Covered Vans CCT's Small details such as label clips and RCH registration plates and of course the coach sides that I am just experimenting with.