AVCampos Posted October 20, 2011 Posted October 20, 2011 Well, with the same pressure acting on the same surface area, longer cylinders should not be any easier to compress or bounce than the regular ones. My fluids physics are way rusted, so I may be mistaken; but I think what matters is, if a given volume of air has a given percentage of compressibility, more air inside the cylinder would make it more compressible (even if the piston's area is kept constant). Just like we can pump more into a pneumatic cylinder when there's an air tank included. Quote
Blakbird Posted October 20, 2011 Posted October 20, 2011 My fluids physics are way rusted, so I may be mistaken; but I think what matters is, if a given volume of air has a given percentage of compressibility, more air inside the cylinder would make it more compressible (even if the piston's area is kept constant). Just like we can pump more into a pneumatic cylinder when there's an air tank included. Here's where we have a difference between force and displacement because the fluid is compressible. For a given pressure, a pneumatic cylinder of any length can lift the same weight. However, a longer cylinder will require more volume of air to lift that weight over a longer distance. So working backwards, if we place a fixed weight on both a long cylinder and a short cylinder, the long one will compress further before it equalizes the pressure. From that point of view, longer cylinders would be "squishier" due to the larger compliant volume. This would not be true of hydraulics. Quote
JunkstyleGio Posted October 20, 2011 Author Posted October 20, 2011 How about this for a longer cylinder? Quote
timslegos Posted October 20, 2011 Posted October 20, 2011 How about this for a longer cylinder? I have seen those kinds of cylinders before used in lifting dump truck beds. How do they work? tim Quote
JunkstyleGio Posted October 20, 2011 Author Posted October 20, 2011 for some further explanation on telescopic cylinders: Check this! Now back on topic and to the 1h 2012 models! Quote
sama Posted October 21, 2011 Posted October 21, 2011 Hi, I'm new. I don't know if you guys already know this but I found out some cool thing about the log loader 9397. The stabilizers are deployed using knobs. Is it possible that it can lift the truck(like 8297)? Another thing is the m-motor is hiding behind the 2 panels. There is a 12t/20t gear reduction added to it. Then there is a 16t on the axle with the 20t gear, used to drive the gearbox. Here is a good shot of the new mini turntable and the grabber. There is obviously a LA bracket used in the upper arm of the crane. There is also a 12t/20t/12t combination used. Looking at the picture, I can only see a inline 3 cylinder engine. The crane design looks almost exactly like the crane design of 8258, except this crane is smaller. Also note how a 24t is used in the rotation of the crane. It is very similar to the rotation of 8258. According to the front bumber license plate "UW 9397," the designer is Uwe Wabra. Quote
timslegos Posted October 21, 2011 Posted October 21, 2011 The stabilizers are deployed using knobs. Is it possible that it can lift the truck(like 8297)? Another thing is the m-motor is hiding behind the 2 panels. There is a 12t/20t gear reduction added to it. Then there is a 16t on the axle with the 20t gear, used to drive the gearbox. Wow fantastic information! How does the m-motor attach to the outriggers? i see the gears but they disappear inside the frame and you cant see them connect. Could the m motor be connected to another function instead? tim Quote
sama Posted October 21, 2011 Posted October 21, 2011 Wow fantastic information! How does the m-motor attach to the outriggers? i see the gears but they disappear inside the frame and you cant see them connect. Could the m motor be connected to another function instead? tim No, no! Sorry for not explaining properly. The gears are used to drive the gearbox. The gearbox is then used to drive the 4 functions. The 12t and 20t are not attached to the stabilizers. Quote
davidmull Posted October 21, 2011 Posted October 21, 2011 The crane does not look at all realistic to me,the base is way to big and square looking!this model looks like something trown together In a rush. Quote
Pauger Posted October 21, 2011 Posted October 21, 2011 No, no! Sorry for not explaining properly. The gears are used to drive the gearbox. The gearbox is then used to drive the 4 functions. The 12t and 20t are not attached to the stabilizers. Well spotted:) I must admit I just assumed the gears were connected to the stabilizers. They probably don't lift the truck though, the axle pin with bush don't appear to allow that. Quote
timslegos Posted October 21, 2011 Posted October 21, 2011 No, no! Sorry for not explaining properly. The gears are used to drive the gearbox. The gearbox is then used to drive the 4 functions. The 12t and 20t are not attached to the stabilizers. Ohh haha my bad i see now. Very nice eyes though because i certainly didnt see that when i first looked at the photos! tim Quote
dhc6twinotter Posted October 23, 2011 Posted October 23, 2011 Can anybody tell which panels are on the tow truck and log truck? The #3/4 panels are pretty obvious, but I can't tell if the hood panels are #17/18 or #5/6. It looks to me like the tow truck uses #17/18 and the log truck uses #17/18. What do you all think? I would really like to see the #5/6 panels in black. Quote
Paul Boratko Posted October 23, 2011 Posted October 23, 2011 (edited) Can anybody tell which panels are on the tow truck and log truck? The #3/4 panels are pretty obvious, but I can't tell if the hood panels are #17/18 or #5/6. It looks to me like the tow truck uses #17/18 and the log truck uses #17/18. What do you all think? I would really like to see the #5/6 panels in black. From THIS ANGLE you can tell they are the larger ones(#17 and #18) From what I can see that I can confirm the only new panels in black on either set are the #13 and #14 panels in the 9397 Log truck used for the doors.... The panels on the log truck hood look like they may very well be the #5 and #6 ones though... After studying the short curve at the tip of the panel on the Log truck hood, it does in fact look like it is the #5 and #6 panels... Edited October 23, 2011 by Paul Boratko Quote
JunkstyleGio Posted October 23, 2011 Author Posted October 23, 2011 @ Sama: Three cylinders in the Log Loader? Just count the studs and for me the logical conclusion is 4 cylinders! Quote
sama Posted October 23, 2011 Posted October 23, 2011 @ Sama: Three cylinders in the Log Loader? Just count the studs and for me the logical conclusion is 4 cylinders! Got it! Quote
dokludi Posted October 24, 2011 Posted October 24, 2011 (edited) 9397 Edited October 24, 2011 by dokludi Quote
allanp Posted October 24, 2011 Posted October 24, 2011 9397 Well that was in depth, I almost didn't make it to the end! Quote
Alasdair Ryan Posted October 24, 2011 Posted October 24, 2011 Well that was in depth, I almost didn't make it to the end! class. Quote
dhc6twinotter Posted October 25, 2011 Posted October 25, 2011 From THIS ANGLE you can tell they are the larger ones(#17 and #18) From what I can see that I can confirm the only new panels in black on either set are the #13 and #14 panels in the 9397 Log truck used for the doors.... The panels on the log truck hood look like they may very well be the #5 and #6 ones though... After studying the short curve at the tip of the panel on the Log truck hood, it does in fact look like it is the #5 and #6 panels... Fantastic! I've been waiting for LEGO to make the #5 and #6 panels in black. Well that was in depth, I almost didn't make it to the end! Hilarious. Quote
sama Posted October 28, 2011 Posted October 28, 2011 Does anybody have any speculations about the b model of 9397 logging truck? What if its a tow truck model just like 8285? It could just work with the LA raising the boom and the MLA raising the towing platform. Obviously it would be a lot smaller and a yellow boom would look pretty ugly on a tow truck. Is it just me or do I sound crazy? Quote
gmshades Posted October 29, 2011 Posted October 29, 2011 (edited) I just found more pictures on the 1H 2012 Technic Sets found on brickshelf: http://www.brickshelf.com/cgi-bin/gallery.cgi?f=486960 Includes alternate pictures: I wish the tow truck was the same scale as the flatbed. Edited October 29, 2011 by gmshades Quote
sama Posted October 29, 2011 Posted October 29, 2011 (edited) I just found more pictures on the 1H 2012 Technic Sets found on brickshelf: http://www.brickshelf.com/cgi-bin/gallery.cgi?f=486960 Includes alternate pictures: Ya, I just added them yesterday. I wish the tow truck was the same scale as the flatbed. Ya, I just added them yesterday (the larger pictures). (tow truck) Well, not really. Then the model would be pretty small and I don't like small models. Edited October 29, 2011 by sama Quote
Alasdair Ryan Posted October 29, 2011 Posted October 29, 2011 I am not a fan of that truck cab. Quote
timslegos Posted October 29, 2011 Posted October 29, 2011 I am not a fan of that truck cab. ya me either, it looks unpreportional and ugly. tim Quote
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