02-08-2016 07:43

ratdude747

Re: pic: Another Swerve

Looks a bit hollow... You'll want a belly pan or the like to stiffen the frame (otherwise you'll have a lot of flex).

02-08-2016 08:35

marshall

Re: pic: Another Swerve

Is there a speed encoder on there? I see one for turning... which i think is 1:1.

Source files? This looks cool.

02-08-2016 09:27

cad321

Re: pic: Another Swerve

That lightening pattern on the gearboxes look a little too pocketed to me. I'd probably add a little more meat to them there. Aside from that I like it. And as ratdude said, you'll want a belly pan for added rigidity.

02-08-2016 11:16

asid61

Re: pic: Another Swerve

The gearbox pattern might be a little too much, but given the layout it's probably not fatal. The main thing I would do with that is make the webs going to the big pivot larger (5/16" or even 3/8" wide).

The chassis looks fine to my eyes. The pattern is similar to 971's patterns this year, and didn't decrease stiffness noticeable last time I checked in simulation. Given the large square shape, however, adding a wooden bellypan would be to your advantage.

02-08-2016 12:28

Basel A

Re: pic: Another Swerve

I would be concerned about having the CIM there so near to the ground. In a game with some field obstacles, you could probably rearrange a couple things and move the CIM to the top plate (through the bottom plate). There are several disadvantages (higher CG, cantilevered gears, etc.), but could be necessary.

02-08-2016 12:32

Cothron Theiss

Re: pic: Another Swerve

What is the reduction and fps on that? It appears to be quite zippy, given that I can only see two reductions, neither of which are very extreme.

02-08-2016 13:13

SerpentEagle

Re: pic: Another Swerve

Yeah, I plan to add one in the end.
Yeah, theres a versa planetary encoder for the turning. Haven't added the drive encoders. I was only a couple hours into this.

Ill upload this to grabcad later on. Thanks.
Agreed
This is designed to be an offseason project, so this is assuming a flat field, like in 2014.
Its 1:3.333 with a 3.25 OD wheel. Aroud 18 fps according to JVN's calculator. This is designed for an offseason project, so it wont weight more than 45-50 lbs. I might slow it down a bit later on.