When I put my base and mogo lift together, there’s too little room. If I try to fit it into the robot, the size becomes too big.
For my lift, I used a 25-hole angle piece and 4 15-hole C-channels. How can I make it fit into the robot ? (I tried to make my chassis as small as possible, but it didn’t work.
I built the chassis from this robot:
You could try using linear slides to create a vertical intake such as 8059Z.8059Z
You could also use a 4-bar intake like 9056 in this video.9065C
Good luck with your robot design!
@Baguette123 I asked about 9065C’s mogo intake on another thread and it seems like it’s very unsteady. Thank you for the tips, though! I think 8059Z’s intake might work, but someone suggested I have one that can extend horizontally and vertically for easy scoring, which is why I chose to replicate something like this:
That looks like a good design, but if it won’t fit then you should try the 9065 C design. We are using a design similar to theirs, and ours is pretty sturdy. It just depends on how well you build it.
If you use lock nuts (not to tight or too loose), the 4-bar mobile goal intake will be way more stable. The other problem with theirs is that their mobile goal clears the front edge, but hits the top of the chassis before the intake is finished running. A c-channel running along the chassis would stop the intake at the right point and make it way steadier.
@Baguette123 @Easton thanks! I like both of your points; the 4-bar is a pretty good lift, but I’m scared it won’t be able to hold the weight. I’ve actually taken a closer look at our lift and it looks as if the angle piece I was using was too long, so we cut off 5 holes and it works just fine. I’ll be sure to test out those ideas and get back to you on them! =)
Awesome!!! Good luck!
@Baguette123 The first lift I built was the one from the video; the chassis ended up being too long for the first one, so I made it smaller and the lift seems to work in theory. When I lift the mechanism up, it stays, but pivots on the lock nut I put on there so it rotates down. How do I fix this? (I haven’t built the other two yet because of lack of parts)
Photos would help
Rubber bands. But if that doesn’t work, a picture would be helpful.
@Baguette123 @Easton Hopefully this helps!
From what I can see, you don’t have a 4-bar. In a four bar, the top of your mobile goal intake is connected by two bars to the chassis.
From this picture of a 4-bar intake. You have the bar marked 1, but you need the bar marked 2, as you have nothing supporting the other side of the intake. This is the purpost of a 4-bar. Hope this is correct!
Correct, a 4-bar needs literally 4 bars to function correctly
@Easton @Baguette123 yeah, that was pretty stupid on my part. I didn’t have any more c-channels of that size and I kind of hoped for the best. I put two more on (I had to cut a few parts), but now I’m confused as to how I’m going to get the bars to turn with the motors. From what I could (technically, couldn’t) see in the video, there weren’t any gears but I highly doubt that can happen without gears.
That’s true. You’ll probably want to use an (at least) 3 to 1 ratio to both slow down the mechanism and to have enough power to lift the mobile goal.
We have used both 1:5 and 1:3 ratios. 1:3 usually needs rubber bands, 1:5 doesn’t but is slower. Up to you.
@Baguette123 @Easton I think I’ll use 1:5 just because I’ve seen it a lot with upright 4-bars and purely because I’m too lazy to get rubber bands for 1:3. Thanks!
Cool! Good Luck!
@Baguette123 good news! I ended up scrapping the four-bar and chose to do something like SingVEX’s lift; it works pretty well! Thank you for all of the tips!
I presume you mean 8059Z singvex? Linear slides?
That’s because 8059F singvex was a 4-bar mobile goal lift too 
Interestingly… during the recent scrimmage, 8059Z has switched to a 4-bar, while 8059F switched to pneumatic linear slide.