Hi all, I’m looking for some imput from the vex community and hoping all of you all could help. I’m wanting to find out if there is any intrest in these types of devices. of course they will not be competition legal but for us common folk who are all about the build to keep the mind busy. I’m in the process of learning cnc and my friend who has a cnc machine shop is thinking this would be a good learning device for myself. While i’m still in the drawing on paper stage (he will do the actual cad or what ever it is while i watch) I was wondering how many people would be interrested in purchasing any. Currently I’m looking at these models.
3 inch with total extended range of 5.5 inch
4 inch with total extended range of 6.5 inch
6 inch with total extended range of 8.5 inch
there could be more options if there is requests for them. The whole idea is to make them work directly with the beval gears from the advanced gear pack and 2 special mounting brackets. the initial parts will be made of a abs plastic. and if there is interest maybe aluminum. this will be driven from a vex motor using the standard 1/8 square shaft so the only thing needed will be the beval gears. Don’t know how much this will get into but if it’s labor intensive changing tools and dies and the material is expensive then this won’t be more than just my personal items. I’d like to see something in the 30 dollar range for the 3 inch 35 for the 4 inch and 40 for the 6 inch. maybe even less.
If there is anyone out there who has made similiar or purchased 3rd party items please feel free to post links and/or discuss here. I’m really interrested in how many people would like to have one.
Thank you.
ID
P.S.
don’t be shy any and all feedback is appriciated, positive or negative.
First feedback - For those of us who are 100% sure what a Screw Actuator is or aren’t 100% sure we would agree with you about what one is, can you give us a sketch or a picture of one from another source so that we will know exactly what you are trying to construct. - I sure they look great in your head, but my ESP is a little flaky today - Blake
Thanks blake in my half leep mode this morning I failed to use the proper name of the device. The device is a Linear Actuator. a good link for various types and descriptions is
the Electro-mechanical actuator is the one which i am in the process of constructing. Lego has some in various lengths and while it works well with vex… it just can’t handle the torque and the internal cluthing stripped out rather quickly anyway hope this helps.
You can also make a linear actuator out of Vex parts using these instructions. I used one to drive the scissor lift on this robot. Using a 8-32 pitch leadscrew, it was really slow. If you make a linear actuator using a leadscrew, I suggest a coarser screw pitch.
- Blake