How would you spend £500?

[Dan-27]

Have people any experience of these ESC's?

http://cgi.ebay.co.uk/ws/eBayISAPI.d...:X:RTQ:GB:1123

They've said I can have 12 for £140 saving about £15. Because of the low voltage of the kits these seem ideal, just wanted to check and see if anyone had experience with them, specifically if they'll have the same mixing issues as the TZ85a's?

[maddox10]

I hope the dimensions are wrong. Also. With 14awg wires and 320 amps... Then the wire acts as a fuse.

[plargen]

i use them in both my bots on a 4s lipo after a battle the motors are warm but the esc are still cool

[Danjr1]

specifically if they'll have the same mixing issues as the TZ85a's?

I THINK I've cracked the mixing issue but I'll confirm hopefully by the end of the week. Seems to work on the bench anyway but I need to give the code a +3 minute run in a bot to confirm that the mixing works and the temperature cut out has been disabled.

[Dan-27]

I hope the dimensions are wrong.

Good point I hadn't spotted that they're a foot and a half long! I'm hoping it's a translation error.

Great news Danjr1, I'm going to be using TZ85a's in at least one maybe two of them so keep us posted on your progress. As these are half the price and I don't need more than 12v I think I'll go with these.

[plargen]

oh also o found a uk seller of the 320a esc i can post the link later if you want as im on my phone at the mo

[Shakey]

Good point I hadn't spotted that they're a foot and a half long! I'm hoping it's a translation error.

I think you are reading the dimensions as cm not mm.

[shakesc]

I THINK I've cracked the mixing issue but I'll confirm hopefully by the end of the week. Seems to work on the bench anyway but I need to give the code a +3 minute run in a bot to confirm that the mixing works and the temperature cut out has been disabled.

Good news - is this something releasable (is there such a word?) to the wider community if it works? (have mixing issues on my tz85's that I hacked)

[Dan-27]

I think you are reading the dimensions as cm not mm.

The dimensions on the picture are in cm.

[Danjr1]

That's the plan. Give it a good test then the plan is to post online for others to use. Completely at their own risk obviously but the signs at the moment are good!

[RogueTwoRobots]

The dimensions on the picture are in cm.

Made a similar mistake the other day sizing up wood for my shed. They're listed as mm in the item description further down so it's just a typo, although I would have loved to have seen a 1.5 foot tall ESC

[Shakey]

The dimensions on the picture are in cm.

Heh I was looking in the item description. :P

[PJ-27]

The code is open source I believe, so as long as there's a credit to the original author you should be able use and edit freely. Check the licence it's distributed under though.

[Dan-27]

I thought I'd post an update on this. I spent all the money I was given, and then some, and spent about a month assembling all the control units. The design changed a little due to time and money constraints. The electronics are now housed in 5mm acrylic boxes, it's not ideal but it's a start. I have been teaching since September and was able to take 2 lesson with a year 7 class to test the kit out. A couple of technical issues but on the whole it went really well.

We had a robot sumo competition in the last lesson and most of the class came back at lunchtime to keep using their robots. Ill try and add some photos, I was really impressed with their outcomes considering they had 90 minutes.

[Dan-27]

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