|
General Discussion A place to post off topic discussions. |
|
Thread Tools | Display Modes |
#1
|
|||
|
|||
Powered all-thread and nut lift
Not sure what this is called, but the all-thread is stationary and has a nut on it, so when the all-thread is turned it moves the nut back and forth depending on which way it's truned.
I saw this somewhere, don't think it was RC but seems it could be fairly useful. Anyone heard of this, or used it/seen it used, and if so, does it work fairly well?
__________________
Call me Thor, it's short for Thorsteenster. In VA? Check out To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. |
#2
|
||||
|
||||
Re: Powered all-thread and nut lift
its called a screw drive or gear drive. talk to freddy, **** tell you all about them
__________________
"My son will have a chocolate milk" -J.P. Next East Coast Minitruckers Meet: Arioch |
#3
|
||||
|
||||
Re: Powered all-thread and nut lift
Yes Roadmasters is correct, it is properly called a screw drive and is used for all sorts of things in our niche hobby. For instance, they are commonly used on dump trucks to raise and lower the dump bed. They are also used to simulate hydraulic cylinders sometimes. They are usually too slow for that application. They work very well by the way. Many people actually prefer the screw drive compared to it's hydraulic counterpart for the dump truck application.
Dan p.s. - I think my first post directed at you was more friendly and useful than your first post directed at me on Scale4x4... that is... if you are the same person. Last edited by CatdrvR; 08-28-2010 at 08:46 PM. |
#4
|
|||
|
|||
Re: Powered all-thread and nut lift
Ah yes, thanks guys. This is good to know as I was thinking of using it for a dump bed.
If anyone knows a build thread or a link with details/pictures etc please post. Cat, what's your name on Scale? There was a large influx of new users and a bunch of miscategorized posts, so unless it was personal, nothing personal lol. Really though, no hard feelings I hope.
__________________
Call me Thor, it's short for Thorsteenster. In VA? Check out To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. |
#5
|
||||
|
||||
Re: Powered all-thread and nut lift
Here are a couple of screw drives for you.
Video Video I hope this helps and all of these screw drives were built by me with some advice from FREDDYGEARDRIVE Travis
__________________
AKA "00" Biddle RIP FreddyGearDrive 2-12-59/12-19-11 |
#6
|
|||
|
|||
Re: Powered all-thread and nut lift
Thanks, I've been trying to search but stupid Google gives me mostly results for screw driver lol.
__________________
Call me Thor, it's short for Thorsteenster. In VA? Check out To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. |
#7
|
||||
|
||||
Re: Powered all-thread and nut lift
Screw drives are great. Nice and reliable. Easy to build. Best of all (maybe) no hydraulic leaks! But the one thing I noticed about the screw drives is that the speed at which they raise a dump box is not linear. They lift or lower really fast torwards the bottom of their travel, but then slow down at the middle to top of the lift travel. Not much you can about that, except maybe do a sissors type lift?
__________________
Nathan |
#8
|
||||
|
||||
Re: Powered all-thread and nut lift
My hyd dump does the same thing as it has to start filling the larger sections of the cylinder. Not as dramatic as the screw drive though.
__________________
AKA "00" Biddle RIP FreddyGearDrive 2-12-59/12-19-11 |
#9
|
||||
|
||||
Re: Powered all-thread and nut lift
Like playing pool, it's all about the angles. When the slider starts to push it's basicaly trying to push the front end out of the box. Because of the rear hinge, the box has no were to go but up and it does real fast. As the slider goes through the middle and the screw rpm remains the same it looks slower because of the lift angle. Should design a compensator circuit gives max torque at the start, and as the amps start to drop off mid lift, it brings the voltage up to increase the screw rpm making it look more consistent . I'm sure someone on here should be able come up with a circuit. If not, I'll put some thought into it when I get into my dump build.
Rob |
#10
|
|||
|
|||
Re: Powered all-thread and nut lift
I used the Carson sissor style unit in my King Hauler dump truck. It is very smooth and powerful plus it's speed remains constant. It's designed for their trailer so it takes a bit of modification to fit between Tamiya frame rails but I found it well worth the work.
|
#11
|
|||
|
|||
Re: Powered all-thread and nut lift
Quote:
Quote:
__________________
Call me Thor, it's short for Thorsteenster. In VA? Check out To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. Last edited by Thorsteenster; 08-29-2010 at 09:53 PM. |
#12
|
|||
|
|||
Re: Powered all-thread and nut lift
I have a devil of a time with Carson's site too. I got mine from PMD. It's in their Tamiya accessories section.
|
#13
|
|||
|
|||
Re: Powered all-thread and nut lift
Yup, found it, and wow, $188. Yeah, I'll be working on my own design lol. They are nice though, and certainly worth the money I'm sure.
__________________
Call me Thor, it's short for Thorsteenster. In VA? Check out To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. |
#14
|
||||
|
||||
Re: Powered all-thread and nut lift
Quote:
Do you have any pics or description of the mods you did to your Tamiya frame? It would be great to see how you mounted your Carson lift. Thanks in advance - Terry
__________________
FabOne NW Ohio |
#15
|
||||
|
||||
Re: Powered all-thread and nut lift
I'm not sure if this is entirely possible or not, but instead of an electronic solution what about a mechanical one? What I mean is perhaps a variable pitch screw of some sort. Might be an easier solution, or might not
Just thinking out loud. Anyone have thoughts?
__________________
Brian Finster shavin' and smokin' a cigar?!?! |
#16
|
||||
|
||||
Re: Powered all-thread and nut lift
Quote:
__________________
AKA "00" Biddle RIP FreddyGearDrive 2-12-59/12-19-11 |
#17
|
||||
|
||||
Re: Powered all-thread and nut lift
For a dump yes. However when you need space, the spindle would be better. For the same price in a tight model, like a say a tractor, I'd rather have the spindle even if it costs more.
|
#18
|
||||
|
||||
Re: Powered all-thread and nut lift
Quote:
The screwdrives we are talking about are for dump trailers or trucks or in the case of my TK70 I used it to lift the tail and deck. I am even going to use one on my tow truck and hide it and make fake cylinders to look like they are moveing it up and down. Travis
__________________
AKA "00" Biddle RIP FreddyGearDrive 2-12-59/12-19-11 |
#19
|
||||
|
||||
Re: Powered all-thread and nut lift
Farm tractors/front loaders. I have seen them on tractors specifically but they are similar to backhoes. There just isnt room for hydraulics and the spindles with right motor with gearhead (read small and expensive) will work.
|
#20
|
||||
|
||||
Re: Powered all-thread and nut lift
We are on the same page now. Yes with a tractor you run out of room quickly. You could also use small linier actuators like Izzy did on his dozer.
Travis
__________________
AKA "00" Biddle RIP FreddyGearDrive 2-12-59/12-19-11 |
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests) | |
|
|