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  • Cutting 1/2 drops repeats..

    Cutting 1/2 drops isn't as difficult as we think.. When you understand the basic maths behind the process. The same rules apply to 1/4 drops also.

    With thanks to Maz (Stitcher) for the written explanation below.

    There are two methods for calculating so first you need to decide which you need to use - this depends on the relationship between your required cut length and the pattern repeat. Let's assume for the purposes of this explanation that the fabric has a 60cm half drop repeat. Work out your ideal cuts (drop plus turnings).

    Method A - use this if your required cut is just over a whole number of repeats and up to an including a whole number and a half repeats - for example if your cuts are say 241cm to 270cm. The number of repeats per drop will always be 'something and a half'. Your fabric required calculation is (number of repeats per drop x number of drops) + 1. Example - your minimum required cut is 250cm - your drops will be 270cm which is 4.5 repeats. If you require 7 drops the calculation will be (4.5 x 7) +1 which is 32.5 repeats or 19.5 metres.

    Method B - use this if your required cut is just over a whole number and a half repeats and up to an including a whole number of repeats - for example if your cuts are say 271cm to 300cm. The number of repeats per drop will always be a whole number. Your fabric required calculation is (number of repeats per drop x number of drops) + 1. Example - your minimum required cut is 280cm - your drops will be 300cm which is 5 repeats. If you require 7 drops the calculation will be (5 x 7) +1 which is 36 repeats or 21.6 metres.

    Marking and cutting:

    Method A - decide on your ideal starting point on the fabric and mark with a pin (you have ordered an extra repeat to allow you to do this). Round your ideal cut up to the next half repeat - so if your ideal cut is 241cm round up to 270cm which is 4.5 repeats – you did this above when calculating the fabric required. Measure the 270cm / 4.5 repeats and mark with a pin (this is drop number 1). Measure the next 270cm from the pin (this is drop number 2). This will have a different starting point to drop number 1. Measure the next 270 from the last pin - this is drop number 3 and will be identical to drop number 1. Continue this way until all drops have been marked out (or cut if you are brave)- they will all be cut in order.

    Method B - decide on your ideal starting point and mark with a pin as above. Round your ideal cut up to the next full repeat - so if your ideal cut is 271cm round up to 300cm which is 5 repeats – you did this above when calculating the fabric required. Measure 300cm / 5 repeats and mark with a pin - this is drop number 1. Measure (and cut) another 5 repeats - this is drop number 3. Continue until all odd numbered drops have been cut. Now move down the fabric by half a repeat - this is wastage but it brings you to the starting point for all your even numbered drops. Mark another 5 repeats from the point you have marked which is drop number 2 and continue until all even numbered drops have been cut. With this method you shouldn't waste more than half a repeat when deciding on your starting point as you can always cut all the even numbered drops first.
    Have you registered your business yet?

    http://www.ukcurtainmakers.co.uk


    A MyDecozo Directory

  • #2
    This is such a great explanation - thanks to Maz for sharing. Best way of learning......
    Louise


    sigpic Simply Sewing

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    • #3
      Great explanation and it works! Thanks Maz.
      CatherineL
      Catherine Lepreux Interiors

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      • #4
        Very timely post- I will shortly be making some curtains with a half-drop repeat fabric! Thank you.

        Best wishes
        Liz

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