Re: Practical 3D printed parts
 

We made a battery mount that is the same dimensions as the Andymark one. The model is designed for 3d printing and is very durable, it can hold 10lbs no problem. The STL is here and the Solidworks part is here

Here an example printed in Stratasys VeroRigid plastic. You should have no problem with other plastics though.

Re: Practical 3D printed parts
 

We use our 3D Printer for both our FRC team, along with the the FTC Team. Right now though, the FTC bot has more 3d prints than the FRC bot does.

Just seems easier to use it for an FTC bot then a FRC bot.

Re: Practical 3D printed parts
 

Parts made so far with the 3D printer for use on our final robot:

- Battery Mount
- Camera Mount
- Drive mount with bearing that holds our wheel + gearbox together (not load bearing)
- Custom boxes to hold gyro, other sensors, beaglebone controller
- Custom-angle brackets
- Hub for the Denso window motor

Planned usage of more custom parts:
- Wire harnessing
- Control System shielding
- Possibly pneumatic system mounting

Can post photos if interested

Re: Practical 3D printed parts
 

I'm sharing three of 222's currently 3D printed parts on our 2014 robot that I feel will benefit other teams at this time.

A zip folder has been attached to this post and contains .stl, .ipt, and .stp file formats for each part. Two of the parts (.ipt format) have team #'s suppressed. If you want to add your own just unsuppress the text and modify as desired.

1: Nasson pressure switch mount.

Mount the mount as desired using the two holes. Once mounted clip in the switch. For extra security secure switch and wiring with ziptie.


2: VexPro 1x2" extrusion end cap.


3: Clippard air tank to VexPro 3 CIM ball shifter mount.

Mount two of these to the top of the 3 CIM ball shifters using 1/4-20 bolts. Insert tanks. Zipties may be used around the tanks to keep them from slipping back through the mounts easily.


For those wondering all of these parts were printed on Stratasys FDM 3D printers in ABS.

Re: Practical 3D printed parts
 

I can attest to the strength of well designed PLA printed parts.

Team 801's prototyping division has made entire gearboxes before (with the exception of the gears, axels, and bearings) using a Replicator 2 at 20% infill. As far as I'm aware, we have yet to break any of our casings or mounts despite the 2 months of testing we out them through. Also, Children of the Swamp 3D printed their wheel mounts last year and I don't think they broke any mounts all season.

Re: Practical 3D printed parts
 

I finally got around to uploading our Victor tower. Here it is:

http://www.thingiverse.com/thing:242644

Re: Practical 3D printed parts
 

so spce is very limited on our robot this year for electronics. Saddly, we never purchased a 4 port cRIO so we are still stuck with same old long one. So to save space on the electonics, we are mounting our side car on top of the open ports on the cRIO. A 3D printed mount was created to hold in place on the cRIO. The part wasnt printed on a maker bot but on a larger, industrial printer.

Re: Practical 3D printed parts
 

We have printed a lot of 3d components for our bot so far, but one stands out as the coolest...
Here's a teaser of our coolest 3d printed part...

See if you can guess what it is!

Re: Practical 3D printed parts
 

Our team made a small 3d printed cam with a half inch hex center. We plan on using this to hit a limit switch once per revolution to tell us when our catapult has reset.

Re: Practical 3D printed parts
 

Our current list of 3D printed parts include:
Spacers
2x1 End Caps
Catapult limit switch cam
E4P encoder mounts for WCP single speed shifters.
Camera Mount
Attempted fix to our button maker.

We are really liking the capability to make odd parts quickly and efficiently.

Re: Practical 3D printed parts
 

Could someone post a picture of a 3d printed camera mount? Just looking for ideas.
Thanks

Re: Practical 3D printed parts
 

Here's another part.

A VexPro 3 stage gear cover. It helps with safety and keeping the grease where it should be... It also keeps the electronics guys happy! :D





File is attached below in the .ipt, .stp, and .stl format.

You may need to change the design or length of the legs to account for your drive chain or belt. Also you can adjust the clips so they actually clip onto the rods if you wish, but it can be secured fine with a ziptie.

Re: Practical 3D printed parts
 

The 3D modeling isn't the best on this one. Also it hasn't been fully printed yet to confirm fitment. There is a 90% chance you will want to change the design anyway. It is designed for the Axis M1013.

The intent is to slide the camera in from the top and secure it using the rear integrated screw to pinch the plastic housings together with a nut.

I've attached a .stp and .ipt for you.

Re: Practical 3D printed parts
 

This one is a bit complicated, the programming team requested the ability to rotate the camera 31 degrees to the right and left of center depending on which auto program we ran.

The part that holds the camera and blue part are 3D printed, the rest is common hardware except for a rather interesting part. http://screencloud.net/v/tAqD
http://screencloud.net/v/5Jhe

The small piece of what looks like threaded rod embedded in the clear part that holds the camera is a spring plunger. The blue block is bolted to the robot and has 3 indents in it, one for -31deg, one for looking forward and one for +31deg, as you rotate the mount about 4 inch 10-32 the spring plungers snap into the indents locking it in place.

Re: Practical 3D printed parts
 

Seriously, when it comes to mounting encoders, using 3D printed parts saved a lot of time and effort. Another useful application is to cover print a part that can press into and cover the open end of conduit or other metal tubing.