Well, I've managed to come full circle, and get back into the Robotic Community. It's been quite a while since I last competed, with the lack of funds to get anywhere, really. So, the old, big feather chassis I bought off eBay will soon be put to use.
Well, as soon as I have the parts, money, space, and a non-broken father to help me. Basically, he fell on some ice, and smashed his collar bone. Not pleasant.
Well, due to Yahoo cocking up my Emails, and disallowing me to continue with my other account, I have migrated to a team account, which will be used by any current (My father and I) and future team members. Sorry if this causes any inconvenience, but Yahoo is to blame for this.
Apologies for no updates on the actual robots, however I will soon enough gather the money to buy some of the parts.
-Josh
Finally, I've made some indirect progress. Nothing's cut yet, but I've gotten some aluminium cutting Jigsaw blades, and a sharpie. One side of the armor is drawn to fit, just an attempt to measure it and get a rough size of it. Probably in a few days time, I will have it cut, and ready for some more panels.
So, today has been pretty good. I've finally gotten round to cutting a bit of the robot in the back garden. First off, I was using a cheapo Poundland hacksaw, which worked pretty well, for the first five minutes before it broke. Then, I went to use the jigsaw, which I had no prior experience with. Was fun, but tough. I need a new sawblade, so I can cut some guides.
Any pictures?
No point at the moment, I only managed to cut a few centimetres before the saw snapped :/
Once I get a new hacksaw, and I've gotten somewhere, I'll post some pics. as for now, it's pretty much the same as it was when I got it from eBay. Only with more sharpie.
After about a hour searching round Crystal Peaks Retail Park, I managed to pick up a couple new hacksaw blades. Soon as I got home, I started work, and finished it!
The pictures are in reverse chronological order due to Photobucket being weird, but here the pics are: http://s1170.photobucket.com/user/Th...0Feather%20IRL
I have also decided on what I want to do. A pneumatics/actuator system, with a scoop sort of like this:
ASDFGHJKL.jpg
The black lines drawn in paint being the scoop design, and the red being the cylinder/actuator.
So, through a slight change of ideas, and several breakages (Due to weird weld-type things), I have decided to try and make an electric axe/wedge. I don't know any of the parts yet, or even if I'm going to use Chain or Belts for it. All I've decided on getting is
2x GR02 motors
3x TZ85a (Modifying them myself)
Bits of 20mm HDPE, to fill some of the empty spaces, for more defence.
I'll have a look around for electric axe stuff, but could anyone recommend a decent axe motor? EDIT: Here are the photos of what it's like currently.
SANY1272.JPGSANY1273.JPGSANY1274.JPG
For a simple electric axe, I would actually recommend a standard drill motor, with a ~5:1 reduction. For years I've been planning on using big fancy motors or complex arrangements but never got anything built. Yet when I just used a drill motor, I was able to build something in a few hours. Here's a picture of the basic setup (click to enlarge):
It is a 5:1 ratio using 8mm chain and sprockets from Technobots. 8-tooth sprocket on the drill, 40-tooth sprocket on the axe. Here's a video showing how effective it can be:
http://www.youtube.com/watch?v=WOSJBug1Y7I (copy and paste, didn't want to clog up the thread with a big embed)
If you stick to a simple setup like this, you should be able to get an axe mechanism made up reasonably easily
I've had a quick look through Technobots, looking at sprockets and chains. I believe a 5:1 ratio looks powerful enough, so I may follow along. I assume the tapped hole size will make it able to fit onto the drill shaft? And, just to be sure, is a drill shaft an M4, M5, or bigger?
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