Another bruder conversion

Plant hire machines ,diggers,tractors, farming etc
User avatar
Bear
Posts: 375
Joined: Sat Dec 13, 2014 4:12 pm
Contact:

Another bruder conversion

Postby Bear » Wed Jun 28, 2017 9:55 pm

Well there I was buying some replacement parts for my bruder L574 front loader. And then next thing I accidentally buy a d5 dozen :oops:

Pictures to follow.

User avatar
dus
Site Admin
Posts: 1897
Joined: Sun Dec 06, 2009 5:52 pm
Location: ½wit-hotel population 1

Re: Another bruder conversion

Postby dus » Thu Jun 29, 2017 7:47 am

Accidentally on purpose :DO :DO :BH :BH :lol: :lol: :lol: q
Looking forward to seeing your new conversion :TU :TU
I haven`t lost my marbles they on EVIL BAY
Hard work has a future payoff. Laziness pays off now
heaven didnt want me hell was afraid id take it over
Image

User avatar
TamiyaKen
Site Admin
Posts: 1540
Joined: Fri Jul 06, 2012 9:38 pm
Location: Newport. South Wales. UK

Re: Another bruder conversion

Postby TamiyaKen » Fri Jun 30, 2017 11:09 am

For sure :AG

Just love the way you 'Update' these models. makes em proper like. :)

Cheers

ken

User avatar
Bear
Posts: 375
Joined: Sat Dec 13, 2014 4:12 pm
Contact:

Re: Another bruder conversion

Postby Bear » Fri Jun 30, 2017 11:38 am

Thanks Ken,

I found with my other bruder dozer even with a 6v lead acid battery in it struggles with traction and power. So this one is going to be a real struggle as smaller to start with!

Already ordered machined drive sprockets (4mm shaft so can get some decent reduction motors)

http://www.magomhrc.com/en/bruder-cat-9 ... rvo-2.html

Then in future can add metal tracks for additional weight and traction, well that’s the plan.

Ian.

User avatar
Bear
Posts: 375
Joined: Sat Dec 13, 2014 4:12 pm
Contact:

Re: Another bruder conversion

Postby Bear » Sun Jul 02, 2017 9:45 pm

As promised here are some pictures

Image

On top of laptop for scale.

Image

Done some research and found a few conversions already on You Tube. Although the conversions had moving parts dont look strong enough for my needs so take on board the concepts where possible and off I go on my route. :DO

On one of the YT videos a guy used Tamiya duel gearboxes with 116rpm output but looking at the completed model it looked too fast. So I've ordered a pair of these instead.

http://www.ebay.co.uk/itm/Geared-Motor- ... 2749.l2649

Some small ESC's

http://www.ebay.co.uk/itm/10A-Bustophed ... 2749.l2649

All from China so I have to wait for them to arrive, I move onto the the blade lift/lower action.

Again had a few ideas from others, but wasn't impressed, so on with my attempts. So after 2 tries with 3D printed prototypes I came up with this.

Image

Image

Image

Image

Image

Image

Now I first tried using a metal geared high torque micro servo but wasn't strong enough. So a regular sized servo, but no room!

After some measuring and more measuring I decided to squeeze a cut down servo here. It should clear the drive motors and not interfere with the internals.

Image

Image

Trimming required.

Image

Image

Image

Image

Quick test to see if it works.

Image

One other thing I saw watching the videos is people removed the interior or used the interior to place the battery. :TD

So I bought some small batteries, which I use time will tell as I progress.

Image

Image

Image

User avatar
dus
Site Admin
Posts: 1897
Joined: Sun Dec 06, 2009 5:52 pm
Location: ½wit-hotel population 1

Re: Another bruder conversion

Postby dus » Mon Jul 03, 2017 9:29 am

Hi Ian awesome start looking forward to seeing this develop
I haven`t lost my marbles they on EVIL BAY
Hard work has a future payoff. Laziness pays off now
heaven didnt want me hell was afraid id take it over
Image

User avatar
Bear
Posts: 375
Joined: Sat Dec 13, 2014 4:12 pm
Contact:

Re: Another bruder conversion

Postby Bear » Wed Jul 05, 2017 2:53 pm

Well, the project as took a turn in the wrong direction!

It started off with me buying metal drive sprockets, inspired me to do the build. These arrived on Monday

Image

Slight miscalculation on the dimensions LOL well no miscalculation I simply did not check!

That’s error 1

And it gets worse, we now move to error 2.

Remember me saying this

Bear wrote:
On one of the YT videos a guy used Tamiya duel gearboxes with 116rpm output but looking at the completed model it looked too fast. So I've ordered a pair of these instead.

http://www.ebay.co.uk/itm/Geared-Motor- ... 2749.l2649


I bought 160rpm. :DO :DO :DO

That would make it faster NOT slower as intended.

So I’m going to contact Magom and see if their can make some drive sprockets to the correct size and decide the route on what answer I get.

Ian.

User avatar
dus
Site Admin
Posts: 1897
Joined: Sun Dec 06, 2009 5:52 pm
Location: ½wit-hotel population 1

Re: Another bruder conversion

Postby dus » Wed Jul 05, 2017 6:51 pm

Hi Ian at least you admitted your mistakes lol
Still looking forward to seeing this develop
I haven`t lost my marbles they on EVIL BAY
Hard work has a future payoff. Laziness pays off now
heaven didnt want me hell was afraid id take it over
Image

User avatar
Bear
Posts: 375
Joined: Sat Dec 13, 2014 4:12 pm
Contact:

Re: Another bruder conversion

Postby Bear » Thu Jul 06, 2017 1:58 pm

Well Magom have replied and said no on the custom sprockets 

Guess a can hollow out the plastic and insert a metal rod in to the core of the sprocket or something.

Think the big one might work on the D10 dozer but that will need a fair amount of work and new tracks, another project for another time.

Ian.

User avatar
dus
Site Admin
Posts: 1897
Joined: Sun Dec 06, 2009 5:52 pm
Location: ½wit-hotel population 1

Re: Another bruder conversion

Postby dus » Thu Jul 06, 2017 2:25 pm

Well I for one hope you do another one (at least)
I haven`t lost my marbles they on EVIL BAY
Hard work has a future payoff. Laziness pays off now
heaven didnt want me hell was afraid id take it over
Image

zetec
Posts: 10
Joined: Sun Jun 08, 2014 1:14 am

Re: Another bruder conversion

Postby zetec » Fri Jul 07, 2017 7:26 am

Hi Bear can you please tell me the Dia and the width of the metal sprockets and do they fit the Bruder track? I am going to try and build a model but looking for a bigger than normal sprocket that will fit Bruder track.

Thanks in Advance John

User avatar
Bear
Posts: 375
Joined: Sat Dec 13, 2014 4:12 pm
Contact:

Re: Another bruder conversion

Postby Bear » Fri Jul 07, 2017 10:09 am

Hi John,

Sure will check later. Fits the bruder plastic just right.

Ian

User avatar
Bear
Posts: 375
Joined: Sat Dec 13, 2014 4:12 pm
Contact:

Re: Another bruder conversion

Postby Bear » Fri Jul 07, 2017 6:13 pm

Hi John

Front to back 36mm
Diameter main body 44mm
Diameter at teeth 54mm
Centre line of teeth from back of body 22mm
30 teeth

Ian

zetec
Posts: 10
Joined: Sun Jun 08, 2014 1:14 am

Re: Another bruder conversion

Postby zetec » Fri Jul 07, 2017 11:58 pm

Hi Ian thanks for that.

John

zetec
Posts: 10
Joined: Sun Jun 08, 2014 1:14 am

Re: Another bruder conversion

Postby zetec » Thu Jul 13, 2017 6:40 am

Hi Ian are you going to use them? if not might be interested in them.

John

User avatar
Bear
Posts: 375
Joined: Sat Dec 13, 2014 4:12 pm
Contact:

Re: Another bruder conversion

Postby Bear » Thu Jul 13, 2017 12:09 pm

Hi John,

I’m thinking I might fit them to my Cat D10 dozer. I need to check if do able over the next few days, if I decide not then I can sell them to you.

Ian.

zetec
Posts: 10
Joined: Sun Jun 08, 2014 1:14 am

Re: Another bruder conversion

Postby zetec » Sat Jul 15, 2017 12:13 am

Hi Ian have worked out that these wheels will be wrong size so will not need them

Thanks John

User avatar
Bear
Posts: 375
Joined: Sat Dec 13, 2014 4:12 pm
Contact:

Re: Another bruder conversion

Postby Bear » Sat Jul 15, 2017 8:46 pm

zetec wrote:Hi Ian have worked out that these wheels will be wrong size so will not need them

Thanks John


No problem, I think I can get them to work on the D10 with a bit of work. (another project to add to the list) :DO

User avatar
Bear
Posts: 375
Joined: Sat Dec 13, 2014 4:12 pm
Contact:

Re: Another bruder conversion

Postby Bear » Sat Jul 15, 2017 8:49 pm

Slowly going.

Received motors a few days ago, bloody sent me a 6v and 12v version in sted of the 2 6v I ordered! :AR

Image

Anyway I proceeded anyway as can swap motor later.

Chassis cutting

Image

Image

That's all so far.

Ian

User avatar
Bear
Posts: 375
Joined: Sat Dec 13, 2014 4:12 pm
Contact:

Re: Another bruder conversion

Postby Bear » Mon Jul 17, 2017 10:17 pm

Bit more work.

Making the plastic drive sprockets fit the gearboxes.

Image

3D printed adaptor

Image

Some trimming of the sprocket internals

Image

And bingo

Image

Next I thought a make a mounting case for the gearboxes to hold them in line when fitted.

Again 3D printed jobby

Image

Image

Image

Space there for a small battery

Image

User avatar
Bear
Posts: 375
Joined: Sat Dec 13, 2014 4:12 pm
Contact:

Re: Another bruder conversion

Postby Bear » Tue Jul 18, 2017 9:59 pm

ESC arrived today :TU

Quick test run



Tracks seem a little slack so going to try move the sprockets a few mm further back and hopefully help grip the drive sprockets.

And strangely the 160rpm gearboxes don't seem that bad speed wise so might stick with them, guess can fine tune them with servo limits on the radio to limit the top speed and see how it goes.


Return to “Plant,Machinery & Agricultural”

Who is online

Users browsing this forum: No registered users and 1 guest