We're building 20 sets of bumpers...

[KrazyCarl92]

My old team did silk screen printing for the bumper numbers, which was donated by the same supplier that helped us with signage for the robot (as I recall).

This year the team I am working with does not have such connections established, so we plan to try using these white paint markers:
http://www.officedepot.com/a/product...t-PX-20-White/

I use them all the time at work, they mark on just about any surface, they dry in no time at all, and they're cost effective. Granted I haven't done it yet so it isn't tried and true, but I'd be surprised if the results were unsatisfactory. Will probably use some sort of stencil or projected image to get the numbers looking neat.

[rich2202]

This is what we use:
http://www.robopromo.com/product_p/rp-2006.htm

We are going to make this ourselves, but may decide to order it pre-made:
http://www.robopromo.com/product_p/rp-2015.htm

They also offer a service to put the numbers on for you. Given that we don't know exactly where we want the numbers, we will iron them on ourselves.

With shipping charges to Down Under, maybe your best bet is just to order the numbers, and get the rest locally.

[BrendanB]

Sarah one option to consider is getting all of the numbers screen printed on to a small piece of bumper fabric and then sewing that "badge" onto your full sized pieces of fabric.

You can do the same trick with paint using a stencil that allows you to swap out numbers for all of the different teams. I have heard of some teams who used spray paint in the past so that might be feasible way to get a lot of numbers painted without having to hand paint every number.

[Mr_I]

AndyMark has vinyl iron-on numbers that we've used for several years.

Take the time to iron the numbers on properly (i.e., don't rush it), you don't want the numbers peeling off during competition.

[JPBlacksmiths]

We just paint on in white paint using stencils. Just a question, why so many bumpers?

[Phoenix Spud]

Thanks everyone for your replies! For cost reasons, I think we're going to try the sail tape (Thanks SoccerTaco for the suggestion) for cost/timing. We'll let everyone know how it all works out.

Originally Posted by JPBlacksmiths

Just a question, why so many bumpers?

With the Robots in the Outback project, we will be going to 9 teams across NSW starting in 5 days. Given the reduced build season, having bumpers pre-prepared will reduce the workload for the teams. On top of this, we help a number of teams in low income neighborhoods who we will make bumpers for. Finally, we have our 2 teams (3132 and 5331). In total, it came to 20 teams.

[The Doctor]

I'm curious, why do you need so many?