Recent content by marciokoko

Is it just sqrt2?

The problem with those 2 boards (stiffeners) on the back is that I believe they don't extend out long enough: Ill try it today and see. I agree about the rope [sorry, i hadnt seen the rest of that post cause i read it on my mobile]...aamof i like that idea way better. And I just found about...

No I don't think I have a rope but I'll check tomorrow morning, why?

OK yes it's my property and I have wooden boards of different sizes and an aluminum angle left over from a solar panel install and some stuff like a 15cm x 15 cm metal plate about 3/8" thick, a 3" galvanized pipe and stuff like that.

we are on lockdown so that's not an option.

I have this backboard made of wood (gift). The board itself has 2 vertical wooden 2x4. I need to hang it on a palm tree. I've checked the measurements and the palm tree has a good 20 inches side to side (diameter). I've had 3 different ideas and Id like to get a better one. 1. Drill 2x10"...

This is a better take:

So you mean On the side of the wall? The door is acrylic, it's too wobbly. I would need a second actuator. Well i fixed a 2x2 on the wall and mounted the actuator on it. It works ok. I didnt measure the angle but its at least half way I think. The acrylic door is really have actually...

Ok here is the new setup. I moved the actuator to the top part of the box. The problem now is that I need to fix the body of the actuator so it doesn't "drop" down.

Here are more pictures:

top left is my current setup but the actuator is so far from the hinge or pivot, that the 25cm stroke is not enough to make the cover reach 70 deg. top right & bottom right are basically the same, but the box is flipped. what other options am I missing? I would try the bottom right today, I...

1. Yes 40 cm 2. Yes 65 cm 3. ok so that's it really, if I determine the door should be open at 70deg, then I can position the actuator properly. Ok so it was more a question of me deciding what I want fully open to be. Ok so no it turns into a forces problem, because as i see it I have 3 options:

Purple is the box frame. Green is the acrylic door. Blue is the body of the actuator. Yellow is the extended actuator. I'm trying to find out the best position to fully open the door with the given actuator.

No, I don't mean i need to figure out other arcsines. I mean I need to figure out other angles in the figure. I need the blue angle.

Yes I got the arcsin but if you look at my last image I still need to figure out more angles in order to solve the problems.