TheItalianBrick Posted June 4, 2014 Posted June 4, 2014 no it is autodesk inventor 2011 Cool. very good software! Keep the good work up then!! Quote
efferman Posted June 6, 2014 Author Posted June 6, 2014 (edited) two new parts an axle 3m with pin. not sure about the friction of the pin. and a h shaped liftarm with a pinhole between the two sides btw, shapeways offers now wax as material which makes it possible to make your own casting mould for metal parts Edited June 6, 2014 by efferman Quote
OzShan Posted June 6, 2014 Posted June 6, 2014 i think the gearbox for a motor like this is a bit to much for my abilitys in making gears. Ozshan has me contacted that the helical gears of the torsen diff not work under load I was just scanning through looking at the history of awesome parts and stumbled across this post. Efferman I think you have me confused with someone else. I've not had anything to do with the Torsten diffs. Cheers. Quote
Talles Posted June 10, 2014 Posted June 10, 2014 What is the better material to print in 3d? Here in Brazil I find more ABS and PLA. Nylon is very expensive here... Quote
efferman Posted June 10, 2014 Author Posted June 10, 2014 i think it depends on the quality of the printer, but nylon with its sls method has the advantage that it needs no support structure which has to removed later. an abs printer ads some supports to the modelthat it not will collapse during the printing process. someone has wanted to print my large turntable in abs, but the print has added so much support to it, that it was not usable. Quote
Talles Posted June 10, 2014 Posted June 10, 2014 I understood. I will try and show the results. Thanks. Quote
TechnicHead41 Posted June 10, 2014 Posted June 10, 2014 Hello Efferman. What about a new kind of pneumatic valve ? This is not my design, but how about putting the hose connectors on top instead, so you can place them side by side instead. Quote
efferman Posted June 10, 2014 Author Posted June 10, 2014 tis is a very interesting design and you are right, in and outlets on top would be better. i will try to design one, but i think the width will be 2 studs and the length four studs, because the sealing will need its space Quote
Zerobricks Posted June 10, 2014 Posted June 10, 2014 tis is a very interesting design and you are right, in and outlets on top would be better. i will try to design one, but i think the width will be 2 studs and the length four studs, because the sealing will need its space I think thats gonna be your most challenging part so far? Quote
TechnicHead41 Posted June 10, 2014 Posted June 10, 2014 Thanks, maybe this can shed some lights over it. Quote
efferman Posted June 10, 2014 Author Posted June 10, 2014 rockbrick, one input, two outputs. but the more important question: why so complex? Quote
TechnicHead41 Posted June 10, 2014 Posted June 10, 2014 Looks great so far Efferman. But can it be printed ??? Quote
efferman Posted June 10, 2014 Author Posted June 10, 2014 (edited) printing should be no problem, but i wait for the wall thickness check Edited June 10, 2014 by efferman Quote
efferman Posted June 10, 2014 Author Posted June 10, 2014 they you have to buy separately 6mm inner diameter 1mm wire strength Quote
dhc6twinotter Posted June 10, 2014 Posted June 10, 2014 I like that pneumatic valve! Does the valve design allow the unused port to vent properly? Quote
efferman Posted June 10, 2014 Author Posted June 10, 2014 look at the second picture, the reversing line is free to air Quote
Bzroom Posted June 10, 2014 Posted June 10, 2014 (edited) Can you make an internal part thats more suitable for proportioning? Maybe have the holes open very gradually. Its very difficult to get proportional flow control out of standard Lego valves.I think it might also be useful to capture the vent. Then the builder could use it for a vent or a two pole switch. Putting some resistance on the vent my also help with controllability. Edited June 10, 2014 by Bzroom Quote
efferman Posted June 10, 2014 Author Posted June 10, 2014 I dont know how i can do it with gaskets. Real proportional valves are very accurate in dimensions and dont need gaskets. So they can make a slow opening. Quote
Bzroom Posted June 10, 2014 Posted June 10, 2014 You could use discreet proportional control, like the Lego servo, it may only have 3 open rates, each separated by a gasket. The valve could have 7 discreet locations, closed, and 3 rates in each direction. Replace the number 3 with your desired precision. Quote
efferman Posted June 10, 2014 Author Posted June 10, 2014 should this design not first tested before trying to optimize it? Quote
barman Posted June 10, 2014 Posted June 10, 2014 Great job on simplifying my design. My big problem was that there was no release of pressure. Just a nice idea, be needed some more attention. Now you've been a busy little bee and are designing parts faster than I can come up with :) I have real trouble getting my designs made. I used Shapeways before, but the quality wasn't good enough for Lego. Looking at your test video's of your designed parts, the white nylon looks good and is strong enough. Perhaps I'll give it an other trie. Quote
efferman Posted June 10, 2014 Author Posted June 10, 2014 (edited) thanks, but your design was a good idea at thursday a new set of parts will arrive my home. some types of universal joints, the 8 tooth free run gears, leaf and coil springs Edited June 10, 2014 by efferman Quote
Erik Leppen Posted June 10, 2014 Posted June 10, 2014 and a h shaped liftarm with a pinhole between the two sides This would be a lovely part to have :) (But I'm always for more generic parts). Quote
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