Call: 021 712 6177 / 021 712 3472  |  Email: info@rchobbyshop.co.za
Mondays                     13:00 to 17:00
Tuesdays to Fridays   09:00 to 17:00
Saturdays                   09:00 to 14:00
Sundays - Closed
 

Website Update

Hi Everyone,

Please note that our Website is very much a work in progress at the moment and the stock levels on the website might not be entirely in sync with the shop levels.

If we don't have something that you have ordered, we will get it in a hurry and get it to you in a hurry.

We are currently working furiously to sort this issue out.

And we apologize for any inconvenience this may cause.

Thanks for all your understanding.

Cheers

Oscar

Website update

Hi everyone.
An update on our website.
We are getting stuff on and it is being updated daily by the "system"
But now we need to get Images linked and related information - another step for us novices. Looks like lots of work.
But we will persevere - please be patient.
Cheers

Oscar

Building a Custom RC Hotrod, Paintwork

If you missed the previous installments, check out post 1 and post 2, in the post I will show paint techniques that I used to achieve the rusted look.

I have always believed that "character" is the most important characteristic that a car can have, which probably explains my string of poor choices in the 1:1 vehicles. I have had to, begrudgingly, start driving boring reliable cars now, fortunately RC allows me to still indulge in rattiness.

The first step was to paint the nylon shell in a matte Tamiya's TS-1 from a spray can, this gives a good quality "rust" base.

Using a brush I roughly dabbed a selection of browns on top of the base coat, to achieve a mottled rust effect, these were just artist's acrylics. Acrylic are always nice to work with since they are water soluble, there are no unpleasant chemicals involved.

The next step is where things start to get interesting. I raided the kitchen for coarse rock salt and pounded it into varying size chunks with a pestle and mortar. Using a paint brush I brushed water onto all the areas of the body where I anticipated the worst rust would have formed (my history of dilapidated real cars was helpful here!). When the salt was poured over the body it stuck to the water, where it was allowed to dry.

The top coat was then applied, I chose Tamiya's TS-48, a matte warship grey, sprayed right over the salt.

Once the paint has dried I took a stiff brush to the salty areas, the top coat chipped and flaked to reveal a car that had spent years building up character through a hard life on the road (or a minor apocalypse).

The final step was to take the smallest brush that I could find and add some detail in black acrylic, as a homage to the Mad Max cars that had inspired me.

BARGAIN

Hi everyone,
The  E-Flite Mini-Funtana has been sold. Usual price around R3000 - sold for R1500

We still have on offer One Hangar 9 P-51D Mustang 40 ARF Wingspan 1430 - Motor .46 to .52 or Electric equivalent. Usual price around R4000
Special price  R2000

First come first served and postage excluded.
Email us at info@rchobbyshop.co.za
Cheers
Oscar

Building a Custom RC Hotrod, Design and Fabrication

In the last post we looked at the inspiration for this build, in this post we look at turning it into reality. 
Before starting the complex CAD work, it is always wise to get an idea of the final size, so I scoured the internet for reference material (it helps here to choose a popular model, like the '32 ford) and printed out a profile, scaled to exactly 1:10, and laid parts out on it. 
The next step was sourcing the parts that I could not build myself, I needed to know their sizes so that I could design around them

Rear axle and gearbox from an SCX10 rock crawler
Front axle from a 1:14 Tamiya Semi truck 
Drive shaft from a Axial Yeti (for length, since the motor is in the front)
7.5 Turn Brushless motor and 120A ESC since an inappropriate amount of power is appropriate in a hot rod.

All of the CAD work was done on Autodesk's Fusion 360, a parametric modelling tool which is free to hobbyists and start-ups, and well worth learning if you are interested in tackling your own designs.



Once the design for the body was completed the files were uploaded to Shapeways, a 3D printing service based in the Netherlands. Shapeways employs the laser-sintered nylon method, which lays down fine layers of nylon powder and selectively fuses them with a laser, resulting an incredibly tough, slightly flexible, end product. 



The chassis of the car was designed to be laser cut and bent from 3mm and 6mm aluminium, a process that is surprisingly affordable, and can easily be done locally (I used Vulcan Steel in Milnerton). It is worth remembering that the laser cutting process can't handle holes of a smaller diameter than the thickness of the material, so the various 3mm holes in the 6mm plate had to be drilled and tapped by hand. 

 

Once all chassis and body parts were on hand the assembly went quickly. Custom length links for the four-link suspension were fabricated from aluminium ball-ends and threaded rod, sheathed in plastic irrigation tubes.



That about does it for the design and fabrication, tune in next time for painting and finishing!

BARGAINS

Hi everyone,
Nobody seemed to like our special prices, so we are making a further reduction.
One E-Flite Mini-Funtana ARF Wingspan 1092mm - Motor E-flite Park 480 or equivalent. Usual price around R3000 -
Special price  was R1750  NOW R1500
One Hangar 9 P-51D Mustang 40 ARF Wingspan 1430 - Motor .46 to .52 or Electric equivalent. Usual price around R4000 -
Special price was R2500  NOW R2250

First come first served and postage excluded.
Email us at info@rchobbyshop.co.za
Cheers
Oscar

Building a Custom RC Hotrod, Introduction

Scratch-building is common in the RC plane world, especially among aficionados of scale accuracy, but far less so in the realm of RC cars. Most commercial RC cars are highly integrated, in the pursuit of speed and handling, so finding a loose gearbox or straight axle is a difficult task. As with all generalisations though there is an exception, the world of scale RC 4x4's (crawlers) is loaded with jaw-dropping customisations and scratch-builds, something that I'll no doubt delve into in a future post, and is also a great source for all kinds of great hop-up parts like gearboxes, straight axles and scale shock absorbers.

In this series I hope to inspire your own creativity by sharing what I came up with when I got my hands on a few of these crawlers parts. This project is a real mix of the old and the new, I wanted to replicate the handling (or lack thereof) of the heavy, all metal, Tamiya Super Champ that got me back into the hobby a few years ago (more on that in the future), while making use of the rapid prototyping technologies (CAD, 3D printing and Laser Cutting) that have recently become so accessible to hobby builders.

I knew from the beginning that I wanted to build a "traditional hot rod with a dash of Mad Max", so it had to have a solid front and rear axle and be based on a classic, in this case, a '32 ford.

I'll leave you with a video of the first test run, as you can see, there was some room for improvement, keep an eye out for future posts that delve into the details.

COMING VERY SOON

Watch this space for something new and interesting.

Cheers

Oscar

WEBSITE UPDATE

Hi everyone,

Another update : We now have quite a lot of stuff on the website and I know it works - I bought a servo and I could utilize the credit card payment method successfully.

We are now working with our developers to ensure that the stock and the website stay in sync.

And we are still adding stuff until we have everything that is in the shop on the website - a slow and painful process.

Happy to hear your feedback.

Cheers

Oscar

BARGAINS

Hi everyone,
Just checked around the shelves and we have two ARFs that have been around too long, so need to go.
One E-Flite Mini-Funtana ARF Wingspan 1092mm - Motor E-flite Park 480 or equivalent. Usual price around R3000 -
Special price R1750
One Hangar 9 P-51D Mustang 40 ARF Wingspan 1430 - Motor .46 to .52 or Electric equivalent. Usual price around R4000 -
Special price R2500.

First come first served.
Email us at info@rchobbyshop.co.za
Cheers
Oscar