Rod Hutchinson

On 23/03/2021 at 01:06, tomparryharry said:

I should say that this little fella is the first one I've modified. Putting back the gear train was a real PITA.  I'm now looking at a 'painless' way to drive out the D shaft, and re-insert with a Markits-Romford axle.  I just haven't had the courage (yet ) to take a press tool to it. The D shaft sleeve is a standard Markits-Romford 1/8" axle bush.

Is you process something like the following:

1. Remove shaft from housing, 

2. Press off drive gear, 

3. Replace shaft with one of desired diameter, 

4. Add a bush to support original drive gear, 

5. Stick it all back together?

Great little layout.

15 hours ago, PaulB85 said:

So my shopping list at the moment is looking a bit like this:

• N20 RC Motor; 100:1 Gear Ratio; 6v; 90-100rpm [eBay] (£6.99) - seems ok?
• Small Bevel Gears - Nylon or Brass? Source? I've looked on eBay but everything seems large and expensive. Any ideas on refining the search terms? (measurements etc.)
• Deltang Receiver & Speed Control - I see Micron can supply these, as can a number of other websites, and of course the Deltang site. I saw the Rx43d and Rx45 were recommended for land vehicles but I'm not sure which variants exactly to go for in terms of how many reversible ESC's? I did say I just wanted forward, reverse, and steering but I'm now wondering if I should go for some future-proofing in case I want to add lights or sound later on? If so, which model would be best?
• LiPo Battery 500-700mAh [Micron] - I see there are differences in discharge rate and size, I'm not really sure what is preferable in terms of discharge rate? Any particular recommendations? Also I'm assuming the Micron USB charger will be ok? However, I don't know what to choose from the different selection boxes but I suppose this depends which battery you go for?
• 1.7g Steering Servo [Micron] - not sure which connector type to go for between JST-H and Molex Picoblade?
• On/Off Switch [Micron] - again, not really sure what to go for here, many options and connection types.
• In-Line Re-settable Fuse [Micron]

Motor is OK

Bevel Gears - https://www.ebay.com.au/itm/183938849218

Deltang RX - I only use 1 per for servo and 1 for brake lights.

Lipo - 180mAh,  selection mainly driven by physical size

Servo - I cut plugs off and solder directly.

Switch - SPST    https://www.ebay.com.au/itm/264561276899

8 hours ago, Giles said:

Hi Rod, after ensuring a good fit, I put a thin smear of 5 min epoxy inside the bearing (not on the stub axle) and then push the stub axle in. This is so any excess of glue gets harmlessly pushed through, and not forced back into the end of the axle where it will cause problems...... hope this makes sense!

 

Best

 

Giles

Hi Giles,

Yes that makes sense.  I shall be more careful in the future.

RodH

Not vehicles but shows how I made working uncouplers using Plantraco Actuators.  The Deltang Rx6x had no F pads so I have added FETs to P pads to obtain sufficient current for the coil.

17 hours ago, Giles said:

I can supply front axle kits at almost any size if you didn't want to scratch-build one.

Giles

 

 

Giles,

I am converting two Canadian Military Pattern "Blitz" Trucks.  One in 4mm and one in 7mm.  How do you glue the stub axle into the bearing?

Rod Hutchinson.

Progress so far.

I am embarking on my next project.  A 1/50 scale Radio Controlled, Canadian Military Pattern "Blitz" truck.

These are examples of my foray into radio control.  HOn30 was explored first because of the trouble I had with poor electrical contact between rails and wheels.

I moved to 7mm because my eyeballs don't work as well as they used to.

HOn30

O16.5  on wooden rails

O16.5 radio control couplings and lights (and motor also)