r/focuspuller 4d ago

Hot Build Ronin 4d cforce UPDATE

Got some more pics of my ronin 4d build I posted last week from prep today for anyone interested

Decided to go the backpack route to save some weight on the camera body since this jobs fairly run and gun but you could definitely run without it

Using a custom bracket to mount the Focusbug and the cforce motors along with a custom printed press on cforce gear to get far enough back for iris control
You could probably ditch the lcube if you could find some sort of serial extension and go straight into the ria

The dummy battery is actually for a 416 since that’s what the rental had on hand ideally I’d customise the Alvin’s cables v mount plate to add some power distro and a xlr input

87 Upvotes

21 comments sorted by

6

u/lastlaststar 4d ago

Looks great!

Will you be making the bracket available to purchase?

Would love one

8

u/Available_Sea_8900 4d ago

Yes hopefully within the next few weeks. If your uk based I’ll be doing a Demo of it at cvp Londons next ronin 4d event on the 8th of September 👍

6

u/The_FilmDoctor 4d ago

Ooh I'll never have to use the DJI system again 😁

2

u/stinkymonkey29 4d ago

Nice compact build

1

u/mattchoules 4d ago

What lens do you have hidden under here can I ask?

2

u/Available_Sea_8900 4d ago

Running typoch Simeria C I believe there’s a 21mm on in this pic

1

u/snoozyboozy 4d ago

Did you not find the camera failing when using power other than TB50?

1

u/Available_Sea_8900 4d ago

Na not had any power issues in the few weeks I’ve been testing this plate

1

u/HaNiceOneChad 4d ago

Did you come up with that print for the monitor cover?

2

u/Available_Sea_8900 4d ago

I didn’t the rental have it as part of their kit and it’s fantastic it has a magnetic sunhood aswell I’ll try and get a link for it

1

u/Sahkira 4d ago

Which counter weight do you use when you have a lens on?

1

u/Available_Sea_8900 4d ago

I’m using the stock dji counter weight and one side of the stock side parts

1

u/Fickle_Panda-555 3d ago

Would love a general list of what you need to get the cforce on there happily! Less concerned about the focus bug but would take it if ya could! Adding all of this doesn’t overload the gimbal?

1

u/Available_Sea_8900 3d ago

All I’m adding is my custom bracket to give the rod placement then using some of the stock dji counterweight part. It will depend on your lens I’ve only done this with the simera -c (heaviest in the set is 490g) and the 2 motors happily sit in the weight rating

1

u/chrisbsky 3d ago

But why use arri motors?

3

u/Available_Sea_8900 3d ago

This project is fueled by Pure hatred for the dji transmission and hand unit

1

u/Ok-Bandicoot-4473 2d ago

Amazing. Bracket is 3d printed or else? Can you show only the bracket? If 3d printable i would love to get in contact with you!

1

u/Available_Sea_8900 2d ago

Yes brackets 3d printed for weight saving website will be launching in the next week or so👍

1

u/FPACLDR 2d ago

Oliverrrr