Downdraft design questions

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5 years 11 months ago #188441 by txtrone
Replied by txtrone on topic Downdraft design questions
That would be great if you did, so I can follow along! lol

I hope I'm not getting the cart too far in front of the horse. I have yet to connect my new LinuxCNC PC to the Mesa card. Not sure of the 'best' way to cut over from CandCNC setup to the new setup. Perhaps I will use the same plug style for my motors so I can still use the table while I learn the new system.

Kind of off topic, but do you know if the CandCNC Super Z II will work with the gear I purchased, which is the list you made for me. I did end up adding a few things, I got a 7176E as well as a Geckodrive G540.
The following user(s) said Thank You: rodw

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5 years 11 months ago #188559 by txtrone
Replied by txtrone on topic Downdraft design questions
We mocked this up today. I grabbed the wrong solenoid type, so we were limited to only one motion... also the air pressure was a bit on the high side.

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5 years 11 months ago #188654 by rodw
Replied by rodw on topic Downdraft design questions
Just watch the video here and get a similar valve. (5/2)

tameson.com/52-way-and-42-way-pneumatic-valve.html

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5 years 11 months ago - 5 years 11 months ago #188662 by Himarc3D
Replied by Himarc3D on topic Downdraft design questions
You need to buy 2 silencer too with you use 5/2 (the gold piece at Rodw video)

Your cylinder model dont have cushion just bumper optional with no cost but you need too choose it. If you buy speed controler you dont wear your cylinder and reduce the noise at the end of stroke. I think you dont need full stroke so just 1 speed controller for the retract side is fine IMO but im always use 2 because customer requisite

You can use the 2/2 but need another 2 and need 3 output to control it using logic and at least one sensor to know the stroke position (5/2 is more easy because you dont know yet to program)
www.bimba.com/sites/default/files/Librar..._Pneumatic_Bimba.pdf

CKD solenoid valve is nice too if you can find it, you can abuse it a lot. SMC for manifold i like.
pneumatic we use CKD and SMC, Hydraulic Tayo/Parker.
Last edit: 5 years 11 months ago by Himarc3D.

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5 years 11 months ago #188685 by txtrone
Replied by txtrone on topic Downdraft design questions
Ok, I ordered some speed controllers... but no silencers. The silencer goes on the exhaust port of the solenoid?

If you were going to control eight of the dual action model cylinders, which manifold and valves would you choose. SMC is carried by a local vendor, but the options and configurations were hurting my head. It would be nice to have a manifold with some sort of cables harness that plugs into it and a multi-conductor cable home run to the electronic cabinet. Thanks!

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5 years 11 months ago #188688 by rodw
Replied by rodw on topic Downdraft design questions
If you use the 5/2 valves, you have two exhaust ports per valve. I'm no expert but as you will only ever get 2 valves activating at once (one extending, one closing) as you cross a zone boundary, you might be able to connect each side to a manifold and then you would only need two silencers which could be mounted remotely.

You should be able to use a DB9 cable as you only need one common ground wire for all valves. If you want something more industrial there are plenty of circular connectors. One cheap one you should be able to find on ebay is a Weipu SP21 series. They have 9 pin and 12 pin.

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