The Hotel Lima, for Ants: A Build Diary

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voorsk
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Re: A Hotel, constructed of Limas, for Ants: A Build Diary

Post by voorsk » Sat Mar 23, 2019 10:05 pm

i use flickr, so I'm afraid I'm not much help.

apparently you can generate bbcode from imgur if you're on their desktop site; https://help.imgur.com/hc/en-us/article ... rum-Users-

edit: just tried it on one of your images. viewed, went to desktop mode, a tab appeared called 'embed codes', and it suggested...

Code: Select all

[url=https://ibb.co/YpWh9xj][img]https://i.ibb.co/BqPBD9s/IMG-20190219-175530.jpg[/img][/url]
Image
Team BLEEP Suspicious Houmous / Sprouting Potato / Fermented Melon / Black Carrot

Kyro
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Re: A Hotel, constructed of Limas, for Ants: A Build Diary

Post by Kyro » Sat Mar 23, 2019 10:14 pm

ah well i was wrong then... im sure i have seen someone using imgur though...

but alas, it seems voorsk has the answer...

:D
Team Rocket Robotics
Esper(4wd flipper)
Mantis (2wd grab 'n' lift)
Dominus (4wd SPINNAAAAAH)
Remembering Rex (antweight cassuis)

Sometimes, i wake up grumpy... other times i just let her sleep in...

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LimaHotel
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Re: A Hotel, constructed of Limas, for Ants: A Build Diary

Post by LimaHotel » Sun Mar 24, 2019 9:13 am

Ooh, I'll have a play with that! Thanks guys!
I didn't make it to botfest because I was one of the million marching in London. That was a hell of an event, never have I seen so great a density of human! Now that's over though, I'm about to set off back to home where I plan to absolutely knuckle down and do some building! :D
Jiggy Sawdust (Grabber)
Jammin' Good with Weird and Flippy (Rear-hinged Flipper)
The Pushbot from Mars (4wd Pushbot)

Key Grip (Retired)

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LimaHotel
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Re: A Hotel, constructed of Limas, for Ants: A Build Diary

Post by LimaHotel » Fri Mar 29, 2019 12:20 pm

Image
Look what's arrived!
Boasting mental stats (9.5kg.cm and 0.08sec at 7.4 volts) this will be interesting to test! Shame it's my brothers :lol:
Jiggy Sawdust (Grabber)
Jammin' Good with Weird and Flippy (Rear-hinged Flipper)
The Pushbot from Mars (4wd Pushbot)

Key Grip (Retired)

Kyro
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Re: A Hotel, constructed of Limas, for Ants: A Build Diary

Post by Kyro » Fri Mar 29, 2019 1:37 pm

well surely you can test it without causing any harm... im sure your brother would want to know wether it will be suitable...

as do i...
Team Rocket Robotics
Esper(4wd flipper)
Mantis (2wd grab 'n' lift)
Dominus (4wd SPINNAAAAAH)
Remembering Rex (antweight cassuis)

Sometimes, i wake up grumpy... other times i just let her sleep in...

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LimaHotel
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Re: A Hotel, constructed of Limas, for Ants: A Build Diary

Post by LimaHotel » Tue Apr 02, 2019 3:35 pm

So I actually powered up the NanoTwo I've got - it does it's own mixing. Okay cool. All the trims are way the flip off, and I haven't done the mixing myself so I have no idea how to fix it. Yay.
Note to self - avoid speed controllers with built in mixing like the plague. :p
If anyone could shed some light on how I fix this?
Basically, at neutral, the right motor is in full reverse and doesn't go to forwards until significantly into up on the stick. This also throws left and right balance. And because I haven't done the mixing, I have no idea how to fix it.

The setup guide says to do so with your trims. A) that seems really inelegant as it means if signal is lost the robot will just SPIIIIIIIIN and B) I've maxed out the trims and whilst better it's still stuck in a perpetual state of slight reverse and right turn.
Jiggy Sawdust (Grabber)
Jammin' Good with Weird and Flippy (Rear-hinged Flipper)
The Pushbot from Mars (4wd Pushbot)

Key Grip (Retired)

Kyro
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Re: A Hotel, constructed of Limas, for Ants: A Build Diary

Post by Kyro » Tue Apr 02, 2019 4:17 pm

this is what i found
Rapidrory wrote:
Fri Feb 21, 2014 5:37 pm

Mixing switch? The firmware does the mixing atm, and I may do a non-mixing version if there's a demand for that, but there's no way of switching between the two once it's been programmed if that's what you mean..
Team Rocket Robotics
Esper(4wd flipper)
Mantis (2wd grab 'n' lift)
Dominus (4wd SPINNAAAAAH)
Remembering Rex (antweight cassuis)

Sometimes, i wake up grumpy... other times i just let her sleep in...

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Shakey
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Re: A Hotel, constructed of Limas, for Ants: A Build Diary

Post by Shakey » Tue Apr 02, 2019 5:02 pm

I replied to your email but I will also reply here with the same text to benefit others (Though do note I don't check this forum hugely regularly whereas email gets straight to my phone for replies):

For issue A that is a case of your failsafe settings being incorrect. The robot will set its failsafe to whatever the sticks are when it binds. So if your robot is not trimmed correctly on bind the failsafe will not be correct. Simply fix the trims and rebind.

For issue B this is often from the transmitter when a Devo is concerned: When a Devo is reprogrammed it loses its calibration (Ie it doesn't know exactly what its own stick is telling it to do, kinda like trims but within the TX itself). Trims normally fix this unless the Devo is very out. In which case you want reset all your trims to the middle and to then find the menu/menu option called 'transmitter menu/config/settings' and locate the 'calibrate sticks' option. Follow the instructions on screen. This will typically bring the ESC and TX very close together, then just trim and apply the fix for issue A. If your Devo is still too far off centre you may need to locate the 'trim' menu and change the step amount from 0.1 to 0.2 or 0.3 to give you a bigger trim range. Devos have a curiously small default trim range.
Nuts And Bots - For all your components and ready built antweights!

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LimaHotel
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Re: A Hotel, constructed of Limas, for Ants: A Build Diary

Post by LimaHotel » Tue Apr 02, 2019 5:36 pm

I had to rejiggle my own mixing a little for my other bots, but calibrating my Devo worked. There was still some drift, but easily compensated for with the trims. For the record: I wasn't being entirely serious when I said I'd avoid esc's with built in mixing. I won't avoid them, however if there is a no-mixing option on an esc I think I'd probably take it.
Cheers Alex!
Jiggy Sawdust (Grabber)
Jammin' Good with Weird and Flippy (Rear-hinged Flipper)
The Pushbot from Mars (4wd Pushbot)

Key Grip (Retired)

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LimaHotel
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Re: A Hotel, constructed of Limas, for Ants: A Build Diary

Post by LimaHotel » Tue Apr 02, 2019 6:13 pm

Ah poss. I'm out of M2 bolts. More are on order, but this build (Jiggy) had many many little fiddly sections I didn't intend to be big enough for any M3 bolts. Building on Jiggy may be temporarily halted.
Not to worry! The next version of Key Grip only needs 6 M2 bolts, and they've already been put aside / are in the Mk1! So I might / probably will begin work on an updated Key Grip. Smaller, Lighter, with the servo hinging in the same direction as the flip, and most importantly WITH A KEY
Jiggy Sawdust (Grabber)
Jammin' Good with Weird and Flippy (Rear-hinged Flipper)
The Pushbot from Mars (4wd Pushbot)

Key Grip (Retired)

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LimaHotel
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Re: A Hotel, constructed of Limas, for Ants: A Build Diary

Post by LimaHotel » Tue Apr 02, 2019 10:02 pm

Image

Sneak peek at Jiggy. Nearly assembled! Still got 40g for the wheels, hinges, sides, lid, and whatever nuts and bolts I come up with!
Jiggy Sawdust (Grabber)
Jammin' Good with Weird and Flippy (Rear-hinged Flipper)
The Pushbot from Mars (4wd Pushbot)

Key Grip (Retired)

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LimaHotel
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Re: A Hotel, constructed of Limas, for Ants: A Build Diary

Post by LimaHotel » Wed Apr 03, 2019 12:13 pm

https://youtu.be/YXpNuWIN1-4
Vid of Jiggy in this early stage of development.
I don't really do the whole design / plan thing? I more have a rough mental picture and start cutting. I just don't have the attention span to... Think... About things.
Jiggy Sawdust (Grabber)
Jammin' Good with Weird and Flippy (Rear-hinged Flipper)
The Pushbot from Mars (4wd Pushbot)

Key Grip (Retired)

Kyro
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Re: A Hotel, constructed of Limas, for Ants: A Build Diary

Post by Kyro » Wed Apr 03, 2019 2:47 pm

i would move the lipo down into the gap between the polycarb and drive motor... looks like it will fit to me...

would the servo also fit in the same gap on the other side? or would this negatively affect the grabbing arm?

having the weight above and behind the motors is making it more prone to leaning back...

i had a simmilar problem with the first iteration of mantis so i had a steel plate at the front and pointlessly thin armour at the back to try keep the weight forward of the motors... rear armour was milk bottle hdpe and well... a spinner mangled my internals during the rumble... plus if you watch mantis in its fights you can see it still kicked the front up unless i was delicate

this is why v2 is longer with the weight further forward and now i only get the front lifting if i reverse then accelerate quickly...

having a tail would also allow your wheels to be lifted off the ground if anyone got in under your scoop...

it is a good looking scoop though...
Team Rocket Robotics
Esper(4wd flipper)
Mantis (2wd grab 'n' lift)
Dominus (4wd SPINNAAAAAH)
Remembering Rex (antweight cassuis)

Sometimes, i wake up grumpy... other times i just let her sleep in...

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LimaHotel
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Re: A Hotel, constructed of Limas, for Ants: A Build Diary

Post by LimaHotel » Wed Apr 03, 2019 6:09 pm

A thin tail would only allow for one wheel to be of the ground at once though, right? Rejiggling the innards might just need to happen, which I wouldn't mind. I'm gonna finish this and see how it behaves first though
It's not as if I don't have time
Jiggy Sawdust (Grabber)
Jammin' Good with Weird and Flippy (Rear-hinged Flipper)
The Pushbot from Mars (4wd Pushbot)

Key Grip (Retired)

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LimaHotel
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Re: A Hotel, constructed of Limas, for Ants: A Build Diary

Post by LimaHotel » Thu Apr 04, 2019 8:28 am

So against my advice, my brother went with DasMikros because "That's what you use" (Yeah, I'm also 9 years older, plan to stop using them as I buy new escs, and have significantly more experience soldering.) and then immediately soldered 2 of the pads together. When I tried to desolder, one of the pads came off with the solder.I guess he overheated it too? Anyway, DasMikros are flimsy. We know this. In theory I can solder the wire to a component on the board and the pad falling off ain't the end of the world. My question is: Which one? I saw a DasMikro picture a while back showing where each pad connected to (IE. where to solder to if the pad came off) but alas, I cannot find it.
The pad in question is the signal pad closest to the edge of the DasMikro.
If anyone can gis a hand here, 'twould be immensely appreciated! :D
Jiggy Sawdust (Grabber)
Jammin' Good with Weird and Flippy (Rear-hinged Flipper)
The Pushbot from Mars (4wd Pushbot)

Key Grip (Retired)

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