$1,200.00

Full 3D capability, comes with everything needed to run the drive motors under software control. Very powerful Mach3 software reads a G-code program and converts it to pulses to turn each of the lead screws the exact amount needed. This is a reliable and robust kit that mounts to the shafts of the X, Y and Z axis. An extra space is left on the control module to add a fourth axis driver. Software backlash compensation is very accurate and it is possible to move the table back and forth 0.0001″, something not possible without compensation.

You must determine the shaft diameter of the Z-axis and whether you need a short and a long hub for X and Y

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Description

Finally, an affordable way to enjoy the benefits of CNC on your Rong-Fu RF-25 through RF-45 milling machine. Comes with software, cables, instructions, drive electronics, power supplies and three axis drive assemblies, all ready to go. No permanent modifications to the machine are required and the drives can be installed or removed in seconds. Perfect for tight quarters as drives add just an inch and manual operation is unaffected.

Uses Mach3 software that runs on customer supplied computer with Windows and a printer port. A USB to parallel converter, called a UC100, is available online for $120 and is smoother than the parallel port. Beware of fakes with a short cord and silver case.

The kit is designed for stock lead screws and ball screws

The details of the electronics can be found in the electronics kit.

See the machine operate on YouTube. Just search for Paul Thompson RF-31

Additional information

Z shaft diameter	12mm, 1/2", 13mm
Hub size	short, long

23 Comments

Jimmy Dozier

December 9, 2019 at 7:44 am27

Hi. I’m in the market for a mill to use your kit on. Besides a true rong fu. Do you have any clones that have worked successfully. That would help on my purchase if I knew your kit would work. Thanks

pthomps2@gmail.com

July 2, 2020 at 10:45 pm24

Just Rong Fu because of shaft sizes and method of coupling. The kit can be modified to fit other machines if you use a Z-axis drive and bore out the coupling to match shaft diameter. Set screws connect it to the shaft.

Walter White

January 21, 2020 at 10:20 pm28

I spoke with you a few years ago regarding your CNC retorfit for the roku milling machine. Is the $820 cost for the complete 3 axis setup? Can I download the MACH 3? Is that the software g code program? Please advise, maybe a time to call might serve better. Thank you

July 2, 2020 at 11:03 pm24

I’m raising the price but yes it covers the whole shebang. You can download the software from their site.

Ken Hurt

January 30, 2020 at 4:04 pm27

My milk is a Grizzly go705. Will this kit work on my machine? Are your prices current?

July 2, 2020 at 10:49 pm24

Yes it will fit that model. Prices are not current and have gone up.

Brian Findlay

February 8, 2020 at 7:11 pm27

Looks like a fairly painless install and good quality.

Does it include the software?
It wasn’t clear to me.

It would be really useful to have a list of everything included as well as everything NOT included..

July 2, 2020 at 10:59 pm24

The software is downloaded from the Mach3 website. It is a demo but fully functional. It has a 500 line limitation on code but I’ve never come close to the limit. If you run the sample programs it does hit the limit because they purposely made arcs out of tiny segments of lines instead of a one line arc command.The main kit comes with three high performance stepper drivers that can handle 48 volts and a parallel interface board that are all on a common mounting plate with everything pre-wired. It also has a 350W power supply and printer port cable. The motors are supplied with plugs to connect to the stepper drivers. The mechanical parts (no stepper motors) comes with a pinion for a motor, a mounting plate with large gear and coupler and mounting hardware with special narrow band clamp.

February 13, 2020 at 8:14 pm28

Hi Paul, I would like to buy one of your complete CNC kits, but wanted to ask a couple of quick questions first.. could you let me know how to get in touch with you directly either by phone or email? Thanks much…. Brian

Paul Thompson

June 17, 2020 at 9:19 am24

You can call at 858-231-4526 or email at pthomps2@gmail.com

David McCaw

March 15, 2020 at 6:58 pm25

Hi Paul,
Awesome,finally found something I can afford.
? I’m mostly doing steel, should I use stronger motors?
? Did you do a ball screw conversation?

July 2, 2020 at 10:37 pm24

I do not offer ball screws but the kit is perfect for them. You do not need stronger motors for steel. You don’t have to turn the handles very hard to cut steel. Too strong a motor and you start damaging the machine when it reaches end of travel or starts bending the spokes on the Z handle.

Matt

June 16, 2020 at 6:03 pm24

Hey Paul,
Are you still selling these?
I want to place a order but am reluctant to send my money since it has been a few years since the page was updated.

Thanks,
Matt

July 2, 2020 at 11:01 pm24

I still sell them

keith whitcomb

July 3, 2020 at 4:55 pm23

I was looking at a harbor freight mill. I was considering the possibility of doing the cnc conversion.

You may or mar not have the bits and pieces to make this happen. There is just not enough information on your webpage to know if this is a valid choice.

July 11, 2020 at 10:16 am25

Yes we have parts for the Harbor Freight conversion.

August 20, 2020 at 8:23 pm26

The kit comes with every part you need.

Murray

August 23, 2020 at 2:35 am26

Hi Paul
How much for shipping a complete kit to New Zealand ?
Thanks

September 23, 2020 at 1:19 pm29

$145

Nick Neuhaus

October 28, 2020 at 8:07 pm27

I have an early jet15 with an mt2 spindle and am wondering if this kit will work with it.

Mark Van

December 24, 2020 at 1:36 pm28

Hi Paul,

What is your expected shipping time from a placed order? Is this something that is in stock or has to be made then shipped.

I’m also just wanting to double check sorry, that this is a turn key system, so apart from downloading the MACH software which is free, provided you stay under the 500 tool path limit. Everything else comes posted ready to bolt on with instructions and how to use.?

Thanks for your time. Sorry if I’m asking already asked questions.

Kind regards,
Mark
RF-31 living in AUS

February 20, 2021 at 1:11 am28

It takes me about a week to build one. It is ready to go once you have the software.

Larry Simpson

January 12, 2022 at 10:36 am28

I’m still working on getting my RF 30 repaired , problem with the T nut after I get that repair I will be in the market for your kit. What is the cost of the full kit ?

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