Kazım GÜRHAN

To minimize the wrinkles you can use a couple of more staples. If it doesn't work slightly widen your web. As far as I can see from here the final product is getting better....................

Dear supergru ; I'm gonna answer your question in private message from here for all the other users of this forum.... You can divide your plywood web ( top plate ) into squares which are 2 cm. x 2 cm. ( or 1.5 cm. x 1.5 cm. )in dimension. And then drill out the intersection points. In other words you should spread the holes in a balanced way according to your web's geometrical shape. For heat up process 160 - 180 C. will roughly be enough and your waiting time should be approx. 3-4 min. for thicknesses up to 0.5 mm. / 5-6 min. for 0.5-1 mm. / 6-7 min. for 1-1.5 mm. / 7-8 min. for 1.5-2 mm.

Dear supergru ; There are too many holes on your vacubox and they are too close. And if you use your kitchen oven to heat up your transparent sheet you will get a better final product. Be patient during this process and let the sheet loose down completely in the oven.