The beast of all rotary followers on the DIY Myplasm CNC plasma table.

[@paulholland5412]

Thanks Rob for taking the time to post, I like the way you show rather than hide the good and bad modifications you make in the design process.

[@darkhill556]

Great work, Rob (and team)! It's easy to see how much thought and experience has gone into this project. It should pay for itself in no time. Thanks so much for sharing!

[@millarfarewell5343]

I LOVE IT!! A really good design that works with your table and cut software. Necessity is the mother of invention and you have done really well with this. Look forward to refinements in the future. Cheers from California, where it's cold too.

[@danmarks6803]

Love it Rob!! I’ve just finished getting my new table moving finally with a big thanks to rusty as well. Just have to start on the rotary this week coming. I’ll have to send some picture to you as well when it’s all done. Thanks again.

[@robbroomfield468]

You using myplasm? Or Mach3 ?

[@RustysMetalCutSignsDesigns]

@@robbroomfield468 sorry to jump in on Daniel's comment, but he's running MyPlasm on his new table.

[@danmarks6803]

Yeah Myplasm, I had it on my little table I built and thought about trying something else but landed on Myplasm again cause it’s just so cheap for what you get!! I couldn’t find anything that beats it.

[@robbroomfield468]

Yeah, a bunch of stuff I don't like about it. Mainly how closed source it is. If there were a bunch more user options that would be cool. Things like allowing users to set feed rates from sheetcam or what ever.....myplasm strips out lot of gcode. Anyhow, thanks for the comments I really do appreciate it.

[@danmarks6803]

Yeah I know what you mean… Is there another controller on the market that you have had your eye on that has the same functionality?

[@cycu87]

The hole cut in the profile is not centered, there is a very large inertia when rotating. It would be nice to stiffen it up a bit.

[@vonzipper24]

Really nice work Rob, Go make money with the table

[@BenKoren]

I appreciate all the details. Inspiring.

[@daipower1]

Nice job again Rob, I enjoy your videos mate

[@robbroomfield468]

Thank Dai. Always appreciated.

[@Iamtherodlight1453.]

So, so awesome

[@robbroomfield468]

Thank you

[@bigirish4886]

Great show have you though about using Aluminum for the construction to drop some weight. Not to worry about drawings those that want to copy for their use should be good enough of a fabricator to work it out, and should be willing to do the work. I know from myself with projects like this you put some of your own spin in it, but the over all picture is there, THANKS for posting and doing the leg work too. (: (:

[@HughsMakersCorner]

Brilliant!

[@kiranraj3090]

Thanks rob thank u so much

[@NorthernFabandMachineLLC]

Well done !

[@max-absolut5389]

awesome !

[@chaz_pounder]

Great video! really gets me intressted in building one my self (small scale) Q- tho how do one get another axes when Y + A X and Z thats 4 when my plasma only have 4 axes connections .. ..

[@robbroomfield468]

Hi I wired the y axis from myplasm to two separate motor drivers. I'm not sure that it's recommended but it works. I also used shielded wire and as short as I could make it.

[@chaz_pounder]

@@robbroomfield468 Thx for the aswer, will try it when the time comes =)

[@myplasmcncsystemen1506]

nice to see my project in action :) When it comes to maintaining the correct cutting speed in a corner, it is a difficult topic because in a short cutting section, the X, Z, A axes must cover long distances synchronously. Don't look at the cutting process but at the movement of the axis, it's no small distance ;). Unfortunately, each axis must move very dynamically so as not to slow down this process. I know where I can improve it but I don't have time for it at the moment, I'll come back to it. I noticed that you have major problems with positioning and you don't fully understand how it works. Once you establish a position, there is no need to change it. The program will calculate everything based on the rotation axis, which never changes (it shouldn't). Good Luck ! Lukas from Proma-Elektronika :)

[@robbroomfield468]

Hi Lukas Thanks so much for the continued support and the efforts you put in are not underestimated I fully appreciate everything. I just have a simple mind 😆

[@RustysMetalCutSignsDesigns]

Hey Rob, that is one hell of a beast! It is so cool that you've come up with that design and I'm sure the rotary plasma guys will be copying it, for sure. Would you consider building it out of aluminium, in order to reduce the weight, as it's gotta weigh in at 'heaps' right now. I don't have any work for a rotary plasma option but I feel like I have to build a rotary 'add-on' to my table now, so it continues to (sort of) resemble your table...well, your smaller one, at least, as that's where the inspiration came from for my table!

[@robbroomfield468]

Hey Rusty I'm going to knock some super sized holes in the plates to reduce weight but to be honest the weight isn't affecting anything. Thanks for your comments. Hope all is well. P.S you need a rotary 😆

[@DoingDane]

First ever comment, because this is brilliant.

[@texcali3043]

Hi Rob, Interesting build. I’m in the planning and gathering hardware stage of building my 1st table ( 4’x8’ ) and leaning towards using my plasma as the CNC controls. Are you using 5 motors on 4 axes and how are you doing it if so. I’m trying to understand how you are able to add a fifth motor on a 4 access CNC controller. Thanks. Tony

[@giorgiovisconti6187]

Great job Rob, i have made a small plasma cutting machine with the same myplasma board from Proma and i would like to improve my machine with the rotary function as you did but i am not sure where to connect the rotary motor stepper on the board. I have two motor stepper for the y axe like you(y and y1) so there is no more free port on the board.Can you explane me how you wired the five motor on the proma board(1z 1x 2y and 1rotary) as there are only four port on the board? Thanks again and congratulations i have seen all your video and improvement on your cnc plasma and i think is the best i have found on the web. Very well done

[@robbroomfield468]

Hi and thanks for the sub. Now, the way I did it was to feed the one Y axis into both drivers. That leaves you with a port free. So one y-axis signals goes to both motor drivers. Hopethat makes sense. Then you can allocate your A-axis Also you will need to wire in your A limit. That goes to Input1. . Good luck. If you get stuck let me know.

[@giorgiovisconti6187]

@@robbroomfield468 hi Rob Thank for your answer but i have one more question, at the moment the 4 axe is setted to "inverted y (in1 home) " because the y axis is moved by two motor that run in opposite direction if i put both motor driver in the dir pull y port how can they move in opposite direction? I immagine that you also have the two motors on the y axis that have to move simultaneously but in opposite directions or not? Furthermore the imput 1 is occupied by the y' home limit can i use the imput 2 that is free?

[@robbroomfield468]

Hey, no problem. The direction problem is easy. Just swap one of the coil pairs over and the motor will run in reverse. What are you using the second limit for? You do only need one, unless you are using it to square the gantry. Let me know. R

[@giorgiovisconti6187]

@@robbroomfield468 Hi Rob I did not know the solution was so easy….great! I will try swapping dir+ with dir- in the stepper motor driver of Y’ and yes i’m using the limit switch 1 to squadre the gantry but is not so necessary , if everything goes fine i will try ti bild a small rotary axis for my small cnc Thank very much again

[@robbroomfield468]

@@giorgiovisconti6187 my pleasure. That's why I do this. Good luck

[@romanone9696]

This is very good work, do you have downloadable plans for the rotary section?

[@robbroomfield468]

Are you after just the follower plans....the bit that spins?

[@romanone9696]

@@robbroomfield468 If you have plans of the whole thing, thank you😁😁😁😁 i would appreciate, if only have for the spinning part, i would appreciate that too

[@taboukdecor]

Hi can you put the H bridge in the same way thanks

[@Thegamingbadass1]

Out of curiosity how do you post to the plasma i have been trying for a cople of weeks now to find how to program and post 4 axis plasma oparations

[@robbroomfield468]

I use sheetcam rotary plugin. It's worth the few quid. Also myplasm has a rotary feature but it is still very beta

[@taboukdecor]

Thank you, Mr. Rob. I have a CNC wood router. Can I convert it to a plasma?

[@robbroomfield468]

Absolutely. Cnc routers are generally much more sturdy the a plasma needs to be so.....go for it. If I can help I will.

[@taboukdecor]

@@robbroomfield468 Thank you, Mr. Rob.

[@maxlindgren5795]

Really nice project so impressed! Is it possible to run for example 50x100mm? Or does it need to be rectangular piece? Im about to order myplasm now but im not totally sure it is the right program for this?😊

[@robbroomfield468]

Any size you are willing to build to. Myplasm doesn't care what size. Thanks for the sub

[@maxlindgren5795]

@@robbroomfield468 thanks for your quick answer, just ordered it now!👍

[@robbroomfield468]

If you need any help hit me up. Good luck on your build

[@robbroomfield468]

If you need any help hit me up. Good luck on your build

[@maxlindgren5795]

thank you, i will probably need some help on the way! :)

[@danidangi797]

Nice job Rob! What rectangular tube profile would you use for y axis 2500mm length?

[@danidangi797]

And also for framing a 4500mm long cnc chassis

[@robbroomfield468]

I'd use a well trussed 100x100mm box section. Just make it nice and ridged for water table or what ever.

[@robbroomfield468]

Y OR x?

[@danidangi797]

The axis you write " rail side" on it

[@robbroomfield468]

@danidangi797 gotcha yeah that's the x-axis. I used 160x80x5mm wall thickness. It allows me to hang pretty much what I like off of it.....as you can see 😆

[@shaneschuller2513]

Nice 👍 Is your rotary Stepper geared?

[@robbroomfield468]

Thanks 🤭 Yes, 20:1

[@shaneschuller2513]

@@robbroomfield468 Thank you 🙏

[@alpoutelectronics3970]

ставь второй мотор на люнет, так и будет у тебя как маятник болтаться.

[@robbroomfield468]

Sorry I only know English 😔

[@alpoutelectronics3970]

@@robbroomfield468 i mean that u need to set second stepper motor to the "pipe holder". And there wouldnt be oscillation when turning pipe during cutting. I think u understood me)) my english is bad..

[@robbroomfield468]

I had thought of that and it is a great idea. Maybe soon 😆 I was trying to keep the weight down on the beam as it was all an add on. Thanks