I have never built a dr4b and I’m thinking about getting some aluminum since all the parts we have are steel. Im willing to get one of the 6 pack aluminum C-channels but not sure what size. can someone with experience help me?
Get a 35, I think height will be key this year
Build the dr4b according to the size of your base. If your base is small, then don’t use really long c-channels that protrude out of the base. With that said, its always nice to have 35 hole c-channels since you can shorten them if necessary and keep the scrap, compared to having a short c-channel that isn’t long enough.
It’s also important to buy enough aluminum; I think you’ll need at least 12 c-channels to build a DR4B. In regards to length, it really does depend on your base and what you’re trying to accomplish. That being said, I’d recommend using 35 hole c-channels whenever possible for this game.
Unfortunately, I only have enough go get one pack right now, i did a quick drawing and I have the yellow as aluminum and black as steel. Is there any better way to reposition the bars?
Not bad. But, I’d try to keep all the steel closer to the towers, so at least your center of mass will be lower. Perhaps make the first 4 bar all steel, and make the center tower and upper 4- bar mostly aluminum. Also, consider gearing in the center column, and please rubber band the lift.
I agree with this, if you’re going to use steel, you might as well use it on the lower arms to keep the top as light as possible.
@Download_Complete posted this in a older thread, hopefully it helps you figure out how long to make your c channel depending on how tall you wAnt the lift. Just remember to make a copy before editing it👍
If you have a max size base ( just smaller than 18x18) then I’d use either 5 or 6 segment long c channel
I havent built my base yet, I think im going close to max width and using a 30 hole for length