Sorry, I forgot to say that it has 4 linear guides near the vertices of the table to avoid twists or turns. It is a machine within a frame and the guides are fixed to the structure.
As for the precision, I don't think there is another better way because it moves directly, even if the ballscrew...
I think you are miscalculating. Have you tried it on a model with a CAD program?
Thanks for the options but I think I'll place the ballscrew vertically under the table, it is simpler and less expensive to do. All the bad things will be that I can't add a drawer to save tools.
It is closer to a feeling.
The alternative you propose is not possible since it would mean redesigning everything, more costs and two motors moving the same axis, which I don't like very much.
I tried this without success.
I am focused on getting the inversion of the angle made by the triangle, I suppose that in this way what one adds the other subtracts while still moving up. I keep trying to connect the two triangles, any help is welcome.
The screw is driven by a stepper motor.
The motor controller cannot make that kind of algorithm. Even if this could do it, it would lose a lot of intermediate precision and would have to work with many microsteps.
I also came to the conclusion of the antifunction, I did some mirror tests with two overlapping mechanisms but I don't understand how they should be joined.
Can you draw an example?
Greetings and thanks for the answer.
In this way I have calculated the measurement of leg A to obtain the desired height but when I move the spindle 10mm for example, the height does not move 10mm exactly.
Any idea to calculate the measure of the leg A so that when moving the ballscrew S it...
Hello, regards to all.
I am designing a CNC machine where the table will work as a Z axis.
I have found a complication when trying to save space under the table, to avoid set the ballscrew upright I have decided to make a scissor mechanism but I have noticed that when the ballscrew travel 10mm...