First ever real build lews featherweight

[Roboteernat]

agree, let the front edge scrape along the floor. You may even want to try determin the angle to cut the side wedges too so they run as close as to the floor as you can calculate - i tried tat but the calcs were off slihtly so had gc along the front side wedges

[Supermotolew]

Ok re designed so the total height has been reduced 5mm to allow some inverted ground clearance, ive also just added 2 small nylon rubbing strips to scrape, unfortunately i couldent wrap my head arount the angles for front scraping but did add 2 wedglet things! Sorry unfortunately no pictures today but all id did was re mill the shorter chassis peices for test fit.

I think im pretty close to placing a laser order for the main chassis parts over xmas, i priced it up it was cheaper to get them cut then it was for me to buy the raw material and do them ! Wild ...

[Supermotolew]

Over the next few days ill be looking for inspiration on the wepon modules... the spinners fairly useless for my most local matches and arenas.

[Supermotolew]

Ok a quiet week but the cads coming along well! Ive also started playing with more mdf prototypes, space for the battery is a little worrying but i think it will be ok.... exciting news later this week hopefully! While i hunt for spinner motors, ive started the Hydraulic module! Really excited to play with that and get a feel for the weight its the heaviest module im working on.20211220_171615.jpg
20211215_171428.jpg

Wonky pictures seem to have returned.... sorry!

[Supermotolew]

Some exciting progress if a little frustraiting!

A little sneak peak at wepon module 2....

Ive finished putting together the hydraulics enough anyway to test , the motors come out a little long so im hoping to save some length on a brushless swap. Hoping a motor from lucy will suffice but i think really its begging for a 5050-5065.
20211223_130815.jpg

First attempt ever at milling carbon and the first part of the dampened electronics frames is done pretty happy with the results awaiting more CF and some specilised cutters.
FB_IMG_1640196728639.jpg

[Ocracoke]

Looking very tasty - what thickness is the Carbon Fibre?

[Supermotolew]

Thanks Lucy!

That battery protector plate is 3mm but i think ill do the esc brackets in 1.5mm there purely to support the components. You can see the intended X shaped esc brackets here with blue hdd rubbers onthe corner.
20211220_171615.jpg

[Supermotolew]

Things have been a little tight over xmas so i started working on the box for the battery as i already had the materials.
The Battery enclosure is looking good just awaiting some foam to cnc a pocket into.
Theres a chance this wont be used but ive made it in a way it will also fit another bot i was planning next.
20211230_103607.jpg

[Supermotolew]

Fancied trying somthing new today, so had a play with modeling the hydraulics! Little slow@12v hoping to swap that out with brushless 6s

20220112_173302.jpg

20220112_173254.jpg

[Ocracoke]

Looks very, very cool. How heavy is all the hydraulic gear?

[Supermotolew]

Each ram and hose + oil is about 440g these are about 30mm too long really so im adding a little weight in the claw to cope with the longer than needed geometry.
The pump is a little heavier but i guess 70% of that weight is this big ol rs770-795 ish motor ( this or the spinner is what i plan for your motor to live ) should save weight and length!
I think for "a hydraulic" pincer the system should be very light in comparison to other steel rams and dc packs. But for a feather weight its still heavy and my armour will suffer. Awaiting new scales and ill get u a total module weight!

[Ocracoke]

Hopefully yes, the motor should be ligher than a RS775 motor. I had to make this consideration for my Middleweight but if you are looking for modularity, design the weapon pod around the location of the motor as so to making dropping the pods in and out.

[Supermotolew]

Hi Lucy,

Wondering if you can help me ID this motor i thought it was a RS775 but now im wondering if its larger maybe a 895! or larger if they go!
its 6.3mm shaft. body length 85mm body diameter 81.5 was in a 12v system.

more importantly im looking for a brushless that would match it in torque and a little more RPM (i will run 5 or 6 s) and of course a little lighter!

any thoughts?

[Ocracoke]

That sounds like a Speed 900 to me. There were Tornado 850s (I think) but the size of the motor and the shaft suggests a Speed 900. They are fairly uncommon these days.

[Supermotolew]

Thanks it lools a little closer! How does one translate brushed specs to brushless equivalent? Im guessing not so simple!