Linuxcnc Press brake - Open Source

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29 Oct 2020 18:02 - 29 Oct 2020 18:02 #187704 by aleksamc
I think if you realy need 2 cylinders, than you need control their preasure.
You can control them with servo valve but I think it's very expensive thing.
Much cheaper is to use electro magnetic valve ewith control from linear encoder in such way:
If one side moves faster then another, then close valve until the other catches up.
If you will not control position you can easily skew the plane.
If there is impossible to skew the plane, than you can only reach end position.
Last edit: 29 Oct 2020 18:02 by aleksamc.

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29 Oct 2020 19:03 #187710 by andypugh

pinder wrote: if we'd go that route, simple linear scales would be easier and readily available option.


<slaps forehead> Yes, of course.
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14 Nov 2020 08:17 #189302 by engelmarcel
Hi guys, I've been thinking about a folding bench for a long time. That's why I looked at different variants and found the Safan Darley E-Brake very interesting. This works with a belt to the pulley principle, maybe something like this can be realized more easily for an open-source project. In this article it is described very well, but it is in german, you can translate it with google and here is the link from the manufacturer. Sorry for my English but I had to get in touch because I find the project very interesting.

article in german

Safan Darley
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