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Assembly - THE CHASSIS

BRUTUSBOT

Step 3 - Large Idler Installation: Make sure your large idlers 

don’t 

have teeth - those are different parts!

Slide an axle through the holes at the far back of the chassis, away 
from the logo / skid plate. Install one large idler, then push an 
shaft-cap onto the axle until it stops moving. Then place the other 
large idler on the other side and push on another shaft-cap. 

Step 2 - Chassis Parts: From the Tamiya Tread kit, find:

Ÿ

2 large idler wheels

Ÿ

6 medium sized idler wheels

Ÿ

4 idler axles

Ÿ

8 small idler shaft caps

Also have the chassis on hand - it 
the key part!

Note: Sometimes the end-
caps can get pushed on a 
little 

too

 tight, and the 

idlers rub against the 
chassis.

If this is the case, give the 
idlers on one side a 

gentle

 

tug to free up the idlers so 
they can spin freely. 

Chassis

Medium Idlers

Shaft

Cap

Large
Idlers

Axle

Shaft-cap inserted onto axle

Final Large-idler installation

Nudge idlers to free up rotation

4

Summary of Contents for BrutusBot

Page 1: ...011 SKU 60125 http www solarbotics com products 60125 Get TANKED If you re looking for an inexpensive strong robot platform you ll do well by the Tamiya Gearbox Tread set and our custom Aluminum base...

Page 2: ...que outdoor rough environments Acrylic top plate with cutouts for a sensor sweeping servo and pass through wiring ports Acrylic top plate works with Solarbotics S A F E Solarbotics Arduino Freeduino E...

Page 3: ...s F 12 4 40 x 3 8 Panhead Philips Bolts G 4 4 40 x 1 1 4 Hex Aluminum Standoffs H 1 Anodized blue aluminum chassis I 4 4 x 3 16 Spacers J 2 4 40 Hex nuts K 2 2 56 x 5 8 Phillips 18 8 S S Pan Head Mach...

Page 4: ...otective brown paper on the acrylic Before you peel it off read this page first 3 Here are a pair of top plates prepared with blue and tan spray paint These were prepared by leaving the turret outline...

Page 5: ...ush on another shaft cap Step 2 Chassis Parts From the Tamiya Tread kit find 2 large idler wheels 6 medium sized idler wheels 4 idler axles 8 small idler shaft caps Also have the chassis on hand it th...

Page 6: ...fer to use the large spur gear and designed the chassis to fit the treads using it If you really want to use the small spur gear be our guest but we can t guarantee the fit of the treads Push the spur...

Page 7: ...you get the first side of the tread T in place fold the other side of the T in half and pass it through the hole 6a Take the T shaped end of a tread segment and place one side of it through the hole...

Page 8: ...came with the Tamiya twin motor gearbox and locate the two 4 40 gearbox mounting screws Use the Solarbotics provided 4 40 nuts they re bigger and stronger Step 8 Mounting the Motor If your motor is A...

Page 9: ...p through one slot underneath snug against the frame not the going over the axles and back up the other slot Power up your battery pack with batteries place it on the chassis and strap it in 8 Gather...

Page 10: ...ard stretching the treads a bit and then let the gearbox pull itself back into place Shift the gearbox ahead 1 8 2mm to keep some tension on the treads and then tighten up the gearbox mounting bolts T...

Page 11: ...ape or drill some holes Acrylic is fragile and may crack when drilled with regular high speed bits so try to use plastic drilling drills at slow speed on a wood back support or a diamond bit We ve eve...

Page 12: ...noise generated by the motors Also try adding 0 1 F filter capacitors on the motors themselves between the motor leads and from each lead to the metal motor can needs 3 capacitors per motor Can t nav...

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