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-   -   Bmax 4-III Shorty Lipo Chassis (http://www.oople.com/forums/showthread.php?t=150533)

neallewis 08-05-2014 01:27 AM

Bmax 4-III Shorty Lipo Chassis
 
Here is my new shorty lipo conversion chassis in carbon fibre.

http://courgette.jml.net/~neal/RC/Yo...n-Shorty01.jpg

http://courgette.jml.net/~neal/RC/Yo...n-Shorty02.jpg

Allows the motor/slipper pod to be rotated 180 degrees and moved forward. Front and rear propshafts are swapped. Shorty lipo tray allows forward and rearward positions in a similar manner to the saddle lipo trays.

More photos when fitted.

discothesnake 08-05-2014 06:35 AM

That's nice mate. Who done that for you?

skyaflake 08-05-2014 07:40 AM

Looking good :thumbsup:. I'll wait for the official release myself (which will be in Alu). But a good thing people are already cutting their chassis and designing their own. Lots happening ;-). How much does it weigh?

neallewis 08-05-2014 08:26 AM

Quote:

Originally Posted by discothesnake (Post 856245)
That's nice mate. Who done that for you?

Drawn up my a friend who had already done most of it for a motor forward conversion with bmax2 front end.
carbon was cut by fibre-lyte.

neallewis 08-05-2014 09:02 AM

Quote:

Originally Posted by skyaflake (Post 856256)
Looking good :thumbsup:. I'll wait for the official release myself (which will be in Alu). But a good thing people are already cutting their chassis and designing their own. Lots happening ;-). How much does it weigh?

65.5g for all three pieces, so i expect much lighter than the stock alloy and plastic trays.
I have considered that this lighness low down may affect the CofG and balance of the car over the alloy chassis, and possibly give more flex? we'll see how its performance compares.

if i can source the right alloy i could get it machined on a friends CNC, or just use the carbon as a drill template for my kit chassis. seems to work fine for Naoto.

StwBald 08-05-2014 09:16 AM

one chassis that does both sounds better to me.

fathead 08-05-2014 09:39 PM

Quote:

Originally Posted by neallewis (Post 856272)
65.5g for all three pieces, so i expect much lighter than the stock alloy and plastic trays.
.

Bmax2 carbon chassis is 61g as opposed to 112g for the alloy one so will be very similar for the bmax4, almost half the weight of the alloy

neallewis 08-05-2014 09:51 PM

I'll weigh the kit alloy chassis when I've stripped it down. about half the weight is probably about right.

The yokomo conversion kit won't be long so i'll probably run this to test myself rather than mass produce them in carbon. I think the alloy maybe better weight balance, and offer less flex, so better for higher grip tracks. You want the extra weight on the low grip tracks, no no real need to change from the kit chassis in that instance.


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