Βάζουμε σωλήνα 1,5 χιλιοστά 38x20 για να αντέχει το φάλτσο είναι 7 μοίρες η απόσταση σκαλοπάτι με σκαλοπάτι 34 εκατοστά ευχαριστώ
Use metal square pipe, 38x20mm cross section, 1.5mm wall thickness, to form the two sides.
Use a piece of round metal rod, 15mm thick, to form the top of the ladder, which also serves as a hinge for the middle stand. That rod is 26cm long.
Before welding it on the top, place a piece of pipe, so that the rod is INSIDE the pipe. This forms a sleeve around the rod, which later will serve as the top hinge. We can weld the middle stand later on that sleeve.
The first step of the ladder is 40cm lower than the top.
To form the angled shape of the ladder, make that first step aslo 40cm long.
And this is how the initial pyramid shape of the ladder is formed. The rest of the steps are easy to install. Simply cut and weld.
Take note though: the steps should be welded at an agle, so that they are parallel to the ground when the ladder is open. This way our feet will be horizontal when the ladder is open and we step on them.
The actual angle of the sides, when you look at them fromt he front, is 7 degrees relative to the vertical axis.
The distance between steps is around 34 -35 cm.
Ofcourse there is also the option to modify the distance between the steps by drawing the ladder on a paper before starting construction. This allows for better calculation of the distance between the steps, so that all of them will be spaced equally.
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29 май 2019
