scruffy

[SamO]

Sounds good, your building robots faster than I can design them !

Are you coming to Portsmouth this weekend?

[plargen]

lol ive got about 3 or 4 other robots im working on and the next robot doo im going to is colchester at the end of the month last chance to test

[razerdave]

Sorry about the lack of beetles, I was planning to be there but wasn't able to, and because it's a new class, Haz had technical gremlins and poor old Will had his hands full with 2 heavies and doing pit tours.

[plargen]

and his beetle tyres came off

[plargen]

since my battle switch is now knackered i decided to build my own using a servo board/diodes and a couple of 15a relays seems to work well and as a backup ive also made up a micro switch servo control as backup for the lifter

also i have got some new motors to run the actuator as the previous 1 cooked for no reason, there a tad slower so sould give me more control

and ive also managed to hammer out the dent little hitter left in the base

i have also started on a heavyweight using the wheelchair motors i got ages ago, so far mas a bit of sub chassis an attached the motor mounts. it will either end up LP pneumatic or so form of electric lifter in a scruffy ish shape

[plargen]

got bored on my day off after gsl so scruffy 3 has now started to take shape, i will probably have a gyro in this version

[mrsam]

Ooooh can't wait, Scruffy and Night Fury did brilliantly at this years champs two very good machines

[Flag Captured]

Did you end up managing to break Night fury in the end or did it just soldier on? Extremely tough machine, both of them!

And scruffy 3's looking great already too! Still think you should make it out of 7mm hardox instead of HDPE though

[mrsam]

That's not Hdpe i think it's mild steel

[plargen]

lol night fury will still run if i re attach a wire that got yanked in its last whiteboard

the new scruffy is mild steel tube cut in half, hopefully it will deflect the drum spinners better and if not it provides a good air gap from the electrics

the new night fury will begin in a few weeks time just have to calculate the new size to accommodate the thick hdpe and more powerful drive

[plargen]

bit of an update

scruffys coming along nicely just have to weld up the chassis







found my large sheet of RG1000 that i bought from plastics direct, since its recycled UHMWPE and has similar properties it should make a good internal bulkhead/ motor mount for night fury which will be surrounded in 30mm hdpe
i should have enough rg1000 to make 2 sets of bulkheads which will allow me to test out the makita drives and if any problems occur i can then go back to my original ryobi drive setup

[Max]

What do you use to cut all your metal? Disk cutter?

[razerdave]

Are're those curved sides just inviting flippers and vert/drum spinners?

[plargen]

What do you use to cut all your metal? Disk cutter?

i just use 1mm slitting discs on my angle grinder


also i had 10mm ground clearance on all my bots so flippers could get under easily enough, im hoping the curved edges will deflect thing better ...... at the mo each scruffy has been a trial of different body ideas so if it doesn't work i will go back to sloped sides like scruffy 2

[mrsam]

Scruffy 2 looked like it could handle the punishment quite well, the curved sides definitely make it easier for things to get underneath but also might deflect a hit better than say just a flat panel, regardless of whether it's a sloped panel or not.