Step 3Preparation - Drilling / cutting
Then, drill a second set of holes on both of the VURMs, approximately in the middle of their height.
To calculate the distance do the following:
Connect the two VURMs by using 2 pairs of bolts/screws to keep them stable.
Assemble the upper part of the LERSTA (bulb holder) using only the reflector you just cut, bending the flexible part in a question-mark-shape (?), as shown in the photo.
Measure the length of the tube inserted in the lamp below the joint of the flexible part of the LERSTA, keeping a safety distance.
Separate the two VURMS and measure the inner circumference. Cut two rectangular shapes from the PET sheet and slightly engrave the sheet parallel to its longest side in a width exactly the same with the back-folding of the VURMs.
Then mark the corresponding positions of holes from the underlying VURMs
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