Alasdair Ryan Posted January 2, 2012 Posted January 2, 2012 I have made a pneumatic valve that returns to the center,i have included free instructions so you can build it your self. Download Instructions Quote
Alasdair Ryan Posted January 2, 2012 Author Posted January 2, 2012 I was surprised when it worked. I am looking forward to putting it to good use later this year. Quote
timslegos Posted January 2, 2012 Posted January 2, 2012 I like your design a lot, but aren't there more compact versions? tim Quote
Alasdair Ryan Posted January 2, 2012 Author Posted January 2, 2012 Thay do not return to the center. Quote
Milan Posted January 2, 2012 Posted January 2, 2012 (edited) I have made a pneumatic valve that returns to the center,i have included free instructions so you can build it your self. It looks like your autovalve has the same effect as this: Or this: Both are returning to center/neutral. Main problem is still present: you have to keep the motor stalled when pneumatics is working. Edited January 2, 2012 by Milan Quote
Alasdair Ryan Posted January 2, 2012 Author Posted January 2, 2012 (edited) I tryed that design as well but i think this one is better,I think this idea is a bit easier on the motor the old switch is easier to move than the old one with helps. I don't think there is any way of making the motor stall and yet keep enough energy to move the switch back to the middle. Edited January 2, 2012 by Alasdair Ryan Quote
Burf2000 Posted January 3, 2012 Posted January 3, 2012 Could always try this old one I made ages ago lol, don't think this will burn any motors out. However I use the one Milian mentions above Quote
Alasdair Ryan Posted January 3, 2012 Author Posted January 3, 2012 (edited) Your's is very good, is that a hockey piece i am seeing (orange) i do not have any of those,those ones Milan posted above are good,thay do the job but i don't like the amount of strain it puts onto the pf motors.Athough mine does put strain on the motor it is not as great as the ones posted by Milan. Edited January 3, 2012 by Alasdair Ryan Quote
Burf2000 Posted January 3, 2012 Posted January 3, 2012 Your's is very good, is that a hockey piece i am seeing (orange) i do not have any of those,those ones Milan posted above are good,thay do the job but i don't like the amount of strain it puts onto the pf motors.Athough mine does put strain on the motor it is not as great as the ones posted by Milan. Hey mate, love your work, I do plan to build yours and see if it works better than the others. It does look cool. Quote
Alasdair Ryan Posted January 3, 2012 Author Posted January 3, 2012 Hey mate, love your work, I do plan to build yours and see if it works better than the others. It does look cool. Great i look forward to the feedback,you can find free instructions at the bottom of the first post. Quote
mescalinum Posted January 4, 2012 Posted January 4, 2012 (edited) http://www.brickshelf.com/cgi-bin/gallery.cgi?f=477330 EDIT: oops, I just realized the topic is about return-to-center valves, so this is slightly OT Edited January 4, 2012 by mescalinum Quote
Alasdair Ryan Posted January 4, 2012 Author Posted January 4, 2012 Yes apart from it not returning to the center,that particular puts a lot of strain on the motor,my design athough it puts strain on the motor puts less that design,but thinks for having a go anyway. Quote
davidmull Posted January 4, 2012 Posted January 4, 2012 (edited) http://www.brickshelf.com/cgi-bin/gallery.cgi?f=477330 EDIT: oops, I just realized the topic is about return-to-center valves, so this is slightly OT That's a nice design and the smallest most compact iv seen,the problem with most of these set ups is there too big and take up space,I'm not even sure how Lego would be able to make a small electric pneumatic valve! Yes the valve above would be hard on the motor but that wouldn't bother me too much :) Edited January 4, 2012 by davidmull Quote
Burf2000 Posted January 16, 2012 Posted January 16, 2012 I have just made this and it actually works really well, the motor does get to rotate quite a bit due to the 8 to 40 tooth cog connection. Feels a solid build. Does use more parts than the other solutions and take up a bit more space HOWEVER, it does switch smoothly and does not feel like it is stressing the motor out so much. Good result! Quote
Alasdair Ryan Posted January 16, 2012 Author Posted January 16, 2012 (edited) I am so glad you like it, i would like to put it to good use later this year. Edited January 16, 2012 by Alasdair Ryan Quote
theozboy Posted January 17, 2012 Posted January 17, 2012 I'm not even sure how Lego would be able to make a small electric pneumatic valve! If lego were to make a electric pneumatic valve, it most likely wouldn't be based around the current valve and motor. It would probably be a soleniod, as a soleniod is just an electromagnet and an iron rod which would be connected to a linear valve. Much smaller simpler design all together. I just wish they would hurry up and make it along with a longer ram... just imagine 8043 (the current excavator?? Is that the number!?) with RC pneumatics! Would be absolutely incredible! Quote
Burf2000 Posted January 17, 2012 Posted January 17, 2012 If lego were to make a electric pneumatic valve, it most likely wouldn't be based around the current valve and motor. It would probably be a soleniod, as a soleniod is just an electromagnet and an iron rod which would be connected to a linear valve. Much smaller simpler design all together. I just wish they would hurry up and make it along with a longer ram... just imagine 8043 (the current excavator?? Is that the number!?) with RC pneumatics! Would be absolutely incredible! Mindsensor.com do some nice stuff for this! Quote
88high Posted June 17, 2012 Posted June 17, 2012 It is a good design. However I don't like the bending of technic parts! Does it use the hockey stick piece? Because my autoclave used that... Quote
Alasdair Ryan Posted June 17, 2012 Author Posted June 17, 2012 (edited) It does not use the hockey stick piece. Edited June 20, 2012 by Alasdair Ryan Quote
Alasdair Ryan Posted June 19, 2012 Author Posted June 19, 2012 Great minds think alike! What?.........what's that for?...............random comment............that's Americans for you. Quote
chorlton Posted June 19, 2012 Posted June 19, 2012 What?.........what's that for?...............random comment............that's Americans for you. Pssst. You've said you DO use the hockey spring above. I think you meant "does not". Quote
Alasdair Ryan Posted June 20, 2012 Author Posted June 20, 2012 (edited) No it does use the hockey stick piece. Pssst. You've said you DO use the hockey spring above. I think you meant "does not". Dam spelling mistake......... It does not use the hockey stick piece. Edited June 20, 2012 by Alasdair Ryan Quote
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.