Pulverizer Build Diary

[Merkabah_PT]

Re: Pulverizer Build Diary

Create an account at photobucket, upload photos there, copy the direct link. Them here in the forum, while making a post press the Img buttom. Place the link between [Img*] and [Img/*] (ignore the * just so the code doesn't dissapear) and you are all done.

[Mega Masher]

Re: Pulverizer Build Diary

Thanks for that, i will create an account soon. How is your robot going?

[Merkabah_PT]

Re: Pulverizer Build Diary

It's going well, last electronic parts ordered.
But it's not a competitive one, just to occupy my time, learn and mess around.

Looking forward to see the next stages of your build, melty brain robots really melt my brain, pretty hi-tech stuff.

[Mega Masher]

Re: Pulverizer Build Diary

Thanks for that, it looks really good. I have sort of completed my antweight spinner, but i will make a new one as i was only using it for testing the 1 or 2 wheel argument so i don't have to test it on a featherweight. In other news, my beetleweight is very nearly done (i will be ordering the 10mm wide, 60mm tall Banebots wheels soon if all goes to plan), and i just need wheels, +/-250g sparkfun accerlerometer, and need to program it. The motors are controlled by an Arduino Uno and Arduino Motor Shield and i will program them in a variation of C. It uses the 9.6v NiMH rechargeable batteries from an old toy. They came with a charger, so it made sense to use them rather than spend a lot of cash on some new Lipos.

[Merkabah_PT]

Re: Pulverizer Build Diary

Shock mount that arduino really good, it doesn't like aggression.

[Mega Masher]

Re: Pulverizer Build Diary

Thanks, but will probrably use it as a test programming base for my featherweight robot, Pizza Cutter. Pizza Cutter will have 2 wheels as i want it to be stable at 1,000 RPM. I will make the sides, top and base from Hardox and fill the middle section with foam, and cut out gaps to fit motors and batteries etc...

[Mega Masher]

Re: Pulverizer Build Diary

This might not work, but if it does, then you will see a picture of mini pizza, my robot.

[Mega Masher]

Re: Pulverizer Build Diary

Ok, that worked. Now hereare some pictures of my robot mini pizza in it's current state. Below that is another ant called pulverizer ant (don't worry, it will be renamed). Below that is a photoshop of mauler 5150 with a modification.[imghttp://i1280.photobucket.com/albums/a492/Robot_pizza/20130309_153826_zps31a3b1b1.jpg][/img]

[harry hills]

Re: Pulverizer Build Diary

do you have anymore pictures of your beetleweight? or any videos of it in action. cheers

[Mega Masher]

Re: Pulverizer Build Diary

Sorry Harry, no videos as the wheels haven't arrived and i haven't yet ordered the accelerometer. In case you are interested, it is called the Sparkfun ADXL193, and it is a single axis accelerometer and can measure up to + or - 250g. Here are some pictures, but i will also need to paint it sometime.

[RogueTwoRobots]

Re: Pulverizer Build Diary

Are you planning on attaching your BW's wheels directly to the motors in the above picture? If so, your robot will be going nowhere.

DC electric motors, particularly small ones like that, spin at very high speeds but do not have a lot of torque (turning force). In order to be able to move a robot, motors have to go through some form of reduction (gearbox, chains, pulleys etc) that lowers the RPM of the motor but increases torque to a usable level.

[Mega Masher]

Re: Pulverizer Build Diary

Yes, i was planning on putting the wheels straight on to the motor shafts. This is because i based it on Melty B, which was an american antweight (1pound) weight so the motors on that were smaller.

[Mega Masher]

Re: Pulverizer Build Diary

Hello, time for an update. The wheels from technobots arrived yesterday and fit nicely.


I am also considering using 2 brushless scorpion motors for drive/weapon as ampflow motors seem too big and too expensive. Please let me know your thoughts on this.
Thanks.

[Bodge Job]

Re: Pulverizer Build Diary

brushless my not be the greatest idea as they have less power at lower a rpm, so it will have a high current when driving in a normal non spinning mode, if you have one. if you plan to only drive it while spinning then it should be fine. But i don't suggest this as before and after fights its useful to be able to drive in a safer mode, and it could be used tactically. So i think brushed would be better

[Mega Masher]

Re: Pulverizer Build Diary

Thanks for the reply, my original idea was to swap out the scorpion motors for some cheap Ebay brushed ones for non-spinner events. But if you suggest using brushed motors all of the time, then which ones would have the power and 2 would have to fit in a 25cm circle.