Questions/builds thread.

Quote:

---

Originally Posted by PJ-27

How are you getting on with cutting all the odd angles into the LDPE?

I'm having serious problems getting all the panels to sit flush on my wooden bot, but I can sort that out with a belt sander!

---

These last few parts we have done on a table saw (half visible here and covered in stuff - http://s1088.photobucket.com/albums/i32 ... 012266.jpg). The bulkheads we had to do with whatever we could, jigsaw, hand saw, finger nails, teeth, swearing, etc. As a result the cuts aren't great. My dad spotted the table saw as a second hand model, used for display. Aside from a crack in one of the handles, it seems to work perfectly (for a lot less than a new one). We can get accurate cuts, or accurate by our standards, on any angle from 0-45 degrees. It has revolutionised what we can do. Now it's the imperfections in the raw board that hinder precision when cutting angles and such.

For HDPE/LDPE, I strongly recommend a table saw. It has a huge surface area, both the metal table bit and the big saw itself, so it doesn't do much melting. If it does, it just blasts it away with the power of the saw. It is better than any jigsaw/handsaw/lots-of-swearing combination by a mile. :)

Thanks Harry, haha.

Really changing fast now! In short: wheel protection is on, and the front panel for the lifter is also on and.. that's it?! It sounds so simple and easy when you say it like that!

Anyway, pics pics pics! - http://s1088.photobucket.com/albums/i32 ... elentless/

I am rather fond of the shape. Really quite pleased, it's as if it was designed this way! Let me know what you think. :lol:

Looks really tough and well built. Hopefully it does well.

:D looks awesome

Wow, looks awsome!

This looks really good, you have created a really slick looking robot. Do you have enough weight to add some more thickness to the sides, with some bigger bolts and more of them. I'm just thinking of spinners. :)

Quote:

---

Originally Posted by Relentless

It had occurred to me as well, we have very similar bulkhead designs. You're using gimsons, right? It'll be interesting to see how much better they are than good old 12v drills, we may have to have a game of sumo!

---

I would be up for that :-) It will be interesting to see, I reckon the Gimsons will be more reliable as it has steel teeth but they may not provide as much power as the standard drill motors... Whiteboard perhaps?

And the exterior armour look just plain cool, nice sloping sides to deflect spinners, no such luxury for me at the front or the sides (Spare wheels on order!) The whole thing looks incredibly well designed and built!

Thanks guys! I actually think a game of sumo could be great fun. Speed-controller-cooking drive-motor-frying rubber-burning-fun!

We haven't got enough weight to make big thick bulky side protection as we had hoped (misjudged how heavy the material is). We figured that we have two options; try to absorb the impacts, or try to just keep them out. Since we can't just block them with big thick armour, we've opted for sides that will flex and hopefully absorb the shocks. It's 5-6mm board, unsupported in the middle. We could possibly have done 10mm but I thought that's halfway between the two. It's not strong enough to take the hits, and it's not flexible enough to absorb them. I can kick the sides pretty hard and they stand up to it with no problem. Certainly non-spinners should be OK.

Either way, we have about 23mm board on the front, which I hope to point at any nasty spinny robots that come our way!

Thanks again. Today we should have progress on the top panels. :)

You are also using RoboChallenge Blue wheels by the look of it so it will be a real test of ESC's and drive motors, are you using Electronize ESC as well?

'may not provide as much power as the standard drill motors' ahaa, the opposite should be true, but I'm as interested as you guys to see, will depend on lots of factors like voltage, weight distribution and so on