rcXmartin's blog View Details
Posted by rcXmartin | Apr 13, 2017 @ 06:59 AM | 7,548 Views
Here's my newest car, I've had the Tamiya M03 Mini chassis for years but have entered this years Iconic Cup (Racing series for pre 2000 Tamiya on road cars) in the M class category.

Chassis is a standard M03 with the addition of a Tamiya Sport Tuned motor, 3racing shocks, front cvd's, toe in rear uprights and is fully ballraced. Also added some carbon effect vinyl wrap for that racing look bling

Body is replica of Tamiya's iconic 80's Willys Wheeler Honda City Turbo, it's made by ABC Hobby who make some great retro body shells for M class and touring car chassis'. Decals are a mixture of the supplied ABC ones and modified Tamiya re release Willys Wheeler.

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Posted by rcXmartin | Mar 10, 2017 @ 07:39 PM | 6,820 Views
A little update on my speedometer project

Ditched the original reed switch and now using a hall effect sensor instead

So had to design a new mount to hold it on

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Posted by rcXmartin | Feb 14, 2017 @ 08:05 AM | 7,121 Views
I was on Facebook a while back and on one of the groups I'm on on there someone had posted a picture of a horn they'd fitted to their real car, it was a small compact air horn that sounded great for it's size.

I thought it would be a stretch to get it to fit in the front of the Tonka but I went ahead and bought one anyhow just to see how big it was. If it turned out to be too big I could always fit it to my classic Mini instead.

The horn arrived a few days later and as I expected looked far to big to hide under the hood of the Tonka so I put it to one side to fit to my Mini when I get round to it.

Yesterday my youngest daughter was asking what it was so I got my 3s lipo battery and connected it to the horn to show her that thing is loud!!! There is no way I am not fitting this now, I have to find a way

I removed my old siren that I have fitted in the truck and started to look how I could shoehorn the new horn in

With a bit of cutting I figured out that it would actually fit into the front compartment quite neatly, so out came the dremmel again.

Old Siren Removed

Just a little cutting required
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Posted by rcXmartin | Feb 11, 2017 @ 05:02 PM | 7,641 Views
Hi All,

For the last year I have been toying with the idea of adding a working speedometer to my FPV Tonka Summit. I'd seen a few YouTube videos or people making their own using an Arduino and a small Oled digital screen but the more I looked at it the more daunting the programming side of the Arduino became so I put the idea on the back burner.

A few weeks ago I had a bit of an idea that cycle computers are as cheap as chips but they're generally a bit on the large side to fit in the small area of the Tonka dashboard, especially as the steering wheel is bang in the middle of it.

But what if I relocated the steering wheel lower? I mean it's not exactly a scale look is it, a steering wheel coming straight through the dashboard?

Next job was to find a suitable cycle speedo, a quick search of eBay and the smallest screen I could find was probably this one

A couple of days later and it was here.

A bonus after reading the instructions was that the wheel settings went right down to a 10cm wheel circumference and as the Summit tyres are approx. 55cm circumference I would get a pretty accurate speed reading if I could get it to work.

The next step was to get inside it and have a look whether or not it was going to be usable, it was well sealed together and the only way I could see of getting into it was to cut it open

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Posted by rcXmartin | Feb 01, 2017 @ 06:11 PM | 7,203 Views
Got some more done today on the lighting system, made up a mount for the rear lights, I'm waiting on another lightbar to arrive with some red lenses so i can only mock one side up at the moment with the two orange lenses i have. I've had to cut about a 1cm notch out of the metal body to accommodate the extra light.

I've also split the original Summit lights into pairs and wired them into the controller so now on the front the outer lights come on at half brightness and the spotlights are off and when i flick the switch they all come on full brightness. This also make the mode switch more impressive.

Tonka Summit FPV front lights demo (1 min 39 sec)

On the rear I removed the two inner red LED's and replaced with white, these are also wired into the controller so the outer lights come on at half brightness and when i brake they come on at full brightness and when i reverse the white LED's illuminate

Tonka Summit FPV stock rear light conversion (0 min 28 sec)
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Posted by rcXmartin | Jan 27, 2017 @ 11:14 AM | 6,930 Views
Posted by rcXmartin | Jan 27, 2017 @ 11:13 AM | 7,179 Views
Got the lights fitted to the front today, I used my 3d printer to make the surrounds and the new grille, they fit snuggly over the old raised lights and grill and only sticks out 4mm.

I was going to drill and file them but realised early on that it would take me ages, so off to the shop I went, I've always thought about getting a rotary multitool and this was the perfect excuse

The lights I used are from 2 lightbar assemblies



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Posted by rcXmartin | Jan 24, 2017 @ 11:37 PM | 6,904 Views
Here's what I've been up to today, adding functional lights. I could have added the indicators to the steering channel but didn't want them to flash every time I turned and I had spare channels available.

Just got to get them fitted properly now.

FPV Tonka Summit indicators (1 min 16 sec)

This is the light controller I'm using.

Posted by rcXmartin | Jan 20, 2017 @ 03:53 AM | 7,371 Views
Had a bit of a change of direction with my ground relay. I was getting concerned about the amount of weight that I was elevating and how unstable my tripod was, I have now relocated all non essential to be elevated equipment into a flight case that can be placed at the base of the tripod or a few feet away, this means having to have longer component cables from each of my VRx's but I don't think this should cause too many issues if I use quality cables.

The case contains 5000mah 3s lipo, Lipo low voltage buzzer, Eagle Eyes Diversity, 5.8Ghz VTx and a small LCD screen for public viewing. I may also add a DVR but my Dominator goggles already have a built in DVR so this isn't totally necessary.

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Posted by rcXmartin | Aug 17, 2016 @ 08:00 PM | 7,649 Views
Posted by rcXmartin | Aug 17, 2016 @ 07:56 PM | 7,369 Views
Posted by rcXmartin | Aug 17, 2016 @ 07:49 PM | 7,616 Views
Had a play with the 3d printer again, this time I've made some bonnet (hood) posts so I can use body pins to keep it closed, helps prevent loosing the contents of the front compartment in case of a roll over.

I also made some small washers for the bonnet and covered them in aluminium tape and screwed them down with M2 screws for a more scale look.

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Posted by rcXmartin | Aug 17, 2016 @ 07:47 PM | 7,492 Views
Had a play with my Taranis radio today, set up a few new voice phrases to more accurately describe what the switches are doing. I also added a mix so I can switch between manual head tracking using the left stick for pan and tilt and the right stick for truck control and auto head tracking using the Fatshark goggles headtracker and reverting back to using left stick for throttle and right stick for steering.

Also added a little Tonka Summit picture to my LCD display.

Tonka Summit Taranis Voices (0 min 49 sec)

Posted by rcXmartin | Aug 17, 2016 @ 07:45 PM | 7,442 Views
Originally Posted by FPVsummituk
now that really is a good job........you couldn't have got a tighter fit to the camera, and I see that you have designed in the snap over camera lock
Spent 5 hours yesterday printing a case that turned out that tight a fit I had to destroy it to get the gopro out, so just scaled the design up a fraction and printed it out overnight with my fingers crossed, turned out perfect. I also added a hole to the back so I can push it out from behind.

The case is mounted in 1150 bearings which are the common Tamiya size bearings they use for just about everything.

I've been using a web based design program called tinkercad, it's pretty good. I started off with a gopro case someone else had designed and just deleted and added the bits I did and didn't need.

I've attached the files also in case anyone wants them.
Posted by rcXmartin | Aug 17, 2016 @ 07:42 PM | 7,558 Views
New gimbal

Posted by rcXmartin | Aug 17, 2016 @ 07:39 PM | 7,399 Views
Made a little gear stick today as mine didn't have one.

Quite happy with the result. Although the shaft is a little uneven.

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Posted by rcXmartin | Aug 17, 2016 @ 07:37 PM | 7,291 Views
Got myself a Mini Fabricator, I'm in Tonka Summit 3d printing heaven

Just printed some covers for the back of my mirrors to hide the holes.

Printing off an ariel tube steady now to replace the aluminium one I made a couple of weeks ago.
Posted by rcXmartin | Aug 17, 2016 @ 07:33 PM | 7,428 Views
Thought I'd add a few pics of my Groundstation relay.

It's a RMRC 1.2/1.3ghz vrx that I got from Zuloo's old TS setup, coupled up to a 200mw 5.8ghz vtx and also has a DVR.

Antenna is a ibcrazy Blue Bean Airscrew.

I have a small fan mounted on top to keep the internals cool and have utilized a Gopro mount to fasten it to my 4m tripod.

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Posted by rcXmartin | Feb 03, 2016 @ 06:39 PM | 8,244 Views
Super happy today because I now have 12 channels!!

The RMILEC signal converter arrived today and I couldn't wait to try it out. I can't believe how simple it was to install, watched a couple of youtube videos before I started and it didn't take more than 10 minutes to get it working. Now I only need one connection on the receiver and the converter can be hidden out of the way.

only one lead.
Posted by rcXmartin | Jan 31, 2016 @ 02:48 PM | 9,429 Views
No time like the present, so they say. Got straight onto adding the low battery warning light. Soldered an extension onto the back of the alarm board LED

Tonka Summit remote low battery warning light (0 min 21 sec)

Just uploading a video of it fitted. Stay tuned!