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I am modelling steps used by passengers to board a float plane. The first 'step' is more of a small platform with the rear edge is narrower than the front edge. I have created the first step with a cube and added front legs and angled 'strengthener' with an extra edge and then select the rear face and use SCALE on the Y axis to make the rear width less than the front. Problem is the geometry around the two legs and angled strengthener is not maintained. How do I do it? Here is an image of the real object followed by an image of the object in blender and the blender file is also attached.

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First thing cut this vertical edge with the knife (K to activate, A to cut orthogonally, C to cut through):

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Also create this edge loop with the knife:

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Now you can give your object a Mirror modifier:

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If the front needs to keep its length, put the 3D cursor at the bottom right, choose 3D Cursor as Transform Pivot Point:

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Then in top view use the Shear tool on the (view) Y axis (ShiftCtrlAltSY)::

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  • $\begingroup$ Thanks moonboots. I want both sides done so do I (somehow) 'mirror'? Also I note that the last step (shear?) causes the front to increase in length. Would it be easier to start from 'scratch' (single mesh cube)? I haven't spent much time on it so far so don't mind starting again from 'scratch'. $\endgroup$ Commented Feb 20 at 7:27
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    $\begingroup$ Yes you need to use the Mirror modifier, as for the length, see my edit $\endgroup$
    – moonboots
    Commented Feb 20 at 7:37
  • $\begingroup$ I have 'hit the wall' with the first step (have never used the knife tool' before. I press the K key, position the cursor on the bottom vertice, then press A (a vertical line shows), then click on the top edge where the line intersects and press C then ENTER to complete but I only get an edge between the vertices appear. Tried other 'combinations' of key presses etc but couldn't get any better. $\endgroup$ Commented Feb 20 at 7:50
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    $\begingroup$ You need to press KAC then click on the bottom vertex, then top vertex, then Enter to validate $\endgroup$
    – moonboots
    Commented Feb 20 at 7:55
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    $\begingroup$ Hard to help through the Stack Exchange comments, you can join a Discord if you want to chat and share your screen $\endgroup$
    – moonboots
    Commented Feb 20 at 11:07

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