 | | Re: Worm gear... whence the length?
|
|
(...) Hi Brian, If you're struggling with worm gaps for your leadscrew, this pic of my crane worm gearbox might help: (URL) worm is two worms long, plus two pairs of old type (crennellated) half bushes (small pulleys) and an old type 14-tooth bevel (...) (16 years ago, 22-Jul-08, to lugnet.technic, lugnet.events.brickworld, lugnet.robotics)
|
| |
| | Worm gear... whence the length?
|
|
OK, after struggling with precision in a lead-screw assembly for quite some time now, I've just got to ask because I don't know the answer and it's bothering me... Can ANYBODY give me a possible good reason for the length of the worm gear? why oh (...) (16 years ago, 19-Jul-08, to lugnet.technic)
|
| |
| | Great Ball Contraption at BrickFair
|
|
(URL) Yes there will be a Great Ball Contraption at BrickFair. Yes it will be grand, yes it will be noisy, yes it will be fun, and yes I need you to bring a module (or two)! Don't know what a GBC is? Start here at Steve Hassenplug's (URL) (...) (16 years ago, 16-Jul-08, to lugnet.events, lugnet.technic, FTX) !
|
| |
| | Re: Motor problem
|
|
Philo and Gereon, Thanks so much for your quick replies. I've rebuilt it, and it seems that a larger batter box was the solution. My helicopter should be ready to fly well in advance fo BrickFair, as planned! thanks! Magnus (16 years ago, 16-Jul-08, to lugnet.technic)
|
| |
| | Re: Motor problem
|
|
(...) Hi Magnus, a variety of reasons comes to mind: - Are you using a rechargeable battery? The 9V types of rechargeables sometimes lose power too quickly for such a rather demanding application. - If you let the motor run freely (i.e. without any (...) (16 years ago, 14-Jul-08, to lugnet.technic)
|
| |
| | Re: Motor problem
|
|
Hello Magnus, (...) From the symptoms you describe I would say you need "a bigger battery box". Battery boxes (and motors too) contain a current limiting device. It is a resistor whose value increase (a lot) with temperature. When you start your (...) (16 years ago, 14-Jul-08, to lugnet.technic)
|
| |
| | Motor problem
|
|
Hello, I wondered if any motor-savvy Technic experts out there could help me out with a problem. I'm building a helpicopter, and am powering two rotors plus a light and sound double red light with a single old motor: (URL) a light and sound type (...) (16 years ago, 14-Jul-08, to lugnet.technic)
|
| |
| | Re: New Crane...
|
|
(...) (URL) (16 years ago, 11-Jul-08, to lugnet.technic)
|
| |
| | Re: New Crane...
|
|
(...) Ross, Check these pics out....the first one is my favorite "boom flex" photo, and the second one is a pic of the boom flexing on the original cc8800-Twin! Enjoy... (URL) (16 years ago, 10-Jul-08, to lugnet.technic)
|
| |
| | Re: New Crane...
|
|
(...) You mean plastic bends?? Dang :) I actually have had a good bit of success stiffening up the boom. The majority of the give in the boom was coming from the point where the sections are pinned together. The axles were flexing and letting the (...) (16 years ago, 10-Jul-08, to lugnet.technic)
|
