 | | Re: Strengthening Gears
|
|
In lugnet.technic, Tobbe Arnesson writes: <snip> (...) Ha! How about that? We now have one confirmed test that gear-boiling works. Anyone care to speculate on the physics behind this? TJ p.s. Thanks Tobbe for sacrificing your gears and axles. (23 years ago, 5-Mar-02, to lugnet.technic)
|
| |
| | Re: Strengthening Gears
|
|
FUT: lugnet.technic (...) There's a lot of talk and little workshop here. I know nothing about gear streangth, I have never broken a gear - unitl today. Feeling the only way to settle this is to actually test it: 1) I took a z16 gear and boiled it (...) (23 years ago, 5-Mar-02, to lugnet.technic, lugnet.general, lugnet.robotics, lugnet.build.mecha) !
|
| |
| | RE: Technic MOTM needs a new name.
|
|
ROFL William PS - You can borrow my flame-proof suit if you like! -----Original Message----- From: news-gateway@lugnet.com [mailto:news-gateway...net.com]On Behalf Of Steven lane Sent: 05 March 2002 16:34 To: lugnet.technic@lugnet.com Subject: Re: (...) (23 years ago, 5-Mar-02, to lugnet.technic)
|
| |
| | Re: Technic MOTM needs a new name.
|
|
(...) William, you are of couse completely right that it shoud be a graphic. Now Prince's squiggle is a strange & useless contorted device. Therefore we should of course use a silouette of more or less any piece of bionicle :) Steve (23 years ago, 5-Mar-02, to lugnet.technic)
|
| |
| | Re: Melting Point of ABS (Re: Strengthening Gears)
|
|
(...) Yes, I can see how this would help the progress of scientific knowledge, but realize that technic pieces are hard to come by in the first place these days.. you cannot walk into your local toystore and pick up a supercar... that I'll take the (...) (23 years ago, 5-Mar-02, to lugnet.technic)
|
| |
| | Re: Melting Point of ABS (Re: Strengthening Gears)
|
|
(...) I am in total agreement with this, including the 'you' (as long as it's not 'me'... advancement of science is fine but I ain't putting my bricks in no oven thank you) (23 years ago, 5-Mar-02, to lugnet.technic)
|
| |
| | Re: Melting Point of ABS (Re: Strengthening Gears)
|
|
If you would just put your bricks in the kitchen oven you would make rapid progress with this question. Better yet, obtain a laboratory hot plate with fine temperature control and put a brick between two slides with a weight on top. Do this at (...) (23 years ago, 5-Mar-02, to lugnet.technic)
|
| |
| | RE: Technic MOTM needs a new name.
|
|
(...) Shouldn't that be rendered as some form of graphic? (Like "squiggle-fishhook-tee", aka Prince) How about a Technic brick on a Calendar? William (23 years ago, 5-Mar-02, to lugnet.technic)
|
| |
| | Re: Pneumatics: the old and the new
|
|
(...) But this is exactly how Rob's window walker worked. I had the privilege of seeing it first person, and he would work the pump a bit (to take air out of the blue tanks), then start it going. Then after a while, he would work the pump more. This (...) (23 years ago, 5-Mar-02, to lugnet.technic, lugnet.robotics)
|
| |
| | Re: Melting Point of ABS (Re: Strengthening Gears)
|
|
(...) IIRC, I thought it was from the back shelf of a car... cars with no windows opened can easily get to 145 or even hotter. (hence the warnings about not leaving dogs or ferrets or cats or whatever locked in cars on sunny days, it will kill them) (23 years ago, 5-Mar-02, to lugnet.technic)
|
| |
| | Re: Melting Point of ABS (Re: Strengthening Gears)
|
|
(...) I measured the temp in my attic last summer and it reached 115 F. Needless to say I don't keep much up there and definitely not my Lego collection! ROSCO had a bad "melting" experience: (URL) think this was caused by prolonged exposure to (...) (23 years ago, 5-Mar-02, to lugnet.technic)
|
| |
| | Re: Melting Point of ABS (Re: Strengthening Gears)
|
|
(...) They're clearly not extruded... that's the kind Plastruct(R) uses. But if they're just plain molded and not impact grade I am hoping they are from the higher end of the range. The low end mold temp (and I agree with Thomas Avery's speculations (...) (23 years ago, 5-Mar-02, to lugnet.technic)
|
| |
| | Re: Melting Point of ABS (Re: Strengthening Gears)
|
|
The first one you cite is probably the right one for LEGO(R) Bricks. They're molded, not extruded and I don't believe they are impact grade. Thomas Avery <thomas.avery@intec-hou.com> wrote in message news:GsI76v.GED@lugnet.com... (...) have (...) (...) (23 years ago, 5-Mar-02, to lugnet.technic)
|
| |
| | Re: Strengthening Gears
|
|
(...) Yes, this is true. (...) Now that's quite a statement! I got an email yesterday from someone saying that the axles were the weak point too. I don't know how you're using your gears, but when something breaks in my models, it's the gears! (URL) (...) (23 years ago, 5-Mar-02, to lugnet.technic)
|
| |
| | Re: Strengthening Gears
|
|
Plastic doesn't get stronger under heat-treatment. This type of heat treatment is used to control the crystallization of metals, and long-chain polymers like plastic just don't behave like that. If you need stronger gears, double them. It is the (...) (23 years ago, 5-Mar-02, to lugnet.technic)
|
| |
| | Melting Point of ABS (Re: Strengthening Gears)
|
|
(...) There are different grades of ABS, each having different mechanical properties. I found an extensive resource on materials at: (URL) ABS property data can be found here: (URL) picked 3 grades of ABS that seemed likely to be the type(s) that (...) (23 years ago, 5-Mar-02, to lugnet.technic)
|
| |
| | Re: Strengthening Gears
|
|
(...) Oh people people people!!! Stop what you're doing or thinking!!! (URL) a boo halfway down the page!!! I mean this was, to date, the most traumatic event of my life!!!! (well, not really but it makes a great story when I talk to my LEGO (...) (23 years ago, 5-Mar-02, to lugnet.technic)
|
| |
| | Re: Technic MOTM needs a new name.
|
|
(...) All publicity is good publicity :) How about "t.c.f.k.a.m.o.t.m" (The competiton formerly known as Model of he month) or "I can't believe it's not Motm!" Steve (23 years ago, 5-Mar-02, to lugnet.technic)
|
| |
| | Re: Technic MOTM needs a new name.
|
|
(...) *nods* When I wrote I had agreed and was looking for a new name, not a debate. I included the reasons, that's it. Something I kind of regret today since this whole matter is going out of hand... Mina två ören (Swedish: My two ören) /Tobbe (URL) (23 years ago, 5-Mar-02, to lugnet.technic)
|
| |
| | Re: Pneumatics: the old and the new
|
|
(...) But, of course. As was carefully explained in my earlier post at (URL) is, you can store compressed air in a blue air tank (or as many of them as you have in your possession) and then release it for use later on. Then you charge it up again. (...) (23 years ago, 5-Mar-02, to lugnet.technic, lugnet.robotics)
|
