Newbie Scratch Build - D575A Dozer

[Lil Giants]

What diameter is your drive sprocket?

[Originalrob]

Originally Posted by Lil Giants

What diameter is your drive sprocket?

The sprocket has a 105 mm pitch diameter. I did a crude test with the sprocket straight in the motor and it looked too fast. 🤷🏼‍♂️
Is there an easy way to make it 2 speed?

[Originalrob]

So a little progress has happened since last time...

One side of the track links are complete ( awaiting metal to machine pads). these take so long !

Had some stock delivered for the idler wheel and roller wheels. will start machining over the next few weeks to size



Started the idler wheel …



Quick question on electrics if anyone can help ?…

so I am planning on using a 24v battery, running 24 volt motors which is easy as the sabretooth controller can take that voltage but what happens if I want to use a Premacon 12v hydro pump in the system - does anyone know what I need to reduce the volts for the pump?

should have some more pics of the track carrages over the next few weeks once the metal turns up

Cheers

Rob

[crueby]

Those track links are looking great! Where did you get the laser cutting done?

[Originalrob]

I found a relatively local engineering shop that supplies all sorts of metal and cutting services. I have found that although laser cutting is fairly accurate, it still leaves me with a lot of work to bring the items to an acceptable finish. Laser cutting also leave poor edges and seems like it also hardens it?
Its still a lot better that cutting 10 mm plate steel with a hacksaw so I wont complain !

The round stock and flats I get from another supplier. I just send the diameters I need and lengths. I can use my lathe and mill to do the rest.

One day if I get space to do so, I would like some sort of cnc but for now its all manual

[Rakthi]

Originally Posted by Originalrob

Quick question on electrics if anyone can help ?…

so I am planning on using a 24v battery, running 24 volt motors which is easy as the sabretooth controller can take that voltage but what happens if I want to use a Premacon 12v hydro pump in the system - does anyone know what I need to reduce the volts for the pump?
Rob

Why not get the pump without motor from Premacon and source a suitable 24V motor? Probably easier than having to find room for a voltage converter.

Nice project you have going!

[Originalrob]

Originally Posted by Rakthi

Why not get the pump without motor from Premacon and source a suitable 24V motor? Probably easier than having to find room for a voltage converter.

Nice project you have going!

Of course! That sounds like a great idea !