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General Discussion / Controller upgrade technician UK
« Last post by joss01 on May 11, 2020, 05:38:02 PM »
Hi I have a Creber 3 axis cnc which I use for engraving.  I want to upgrade the controller and set up the software on the machine but I am not confident enough to carry out the project.
Anyone out there can come to my workshop and suggest an upgrade and carry out the work (not MACH 3) and install it there a job for you contact me.
Practical Explanation ( For Example ) :- `1st of all can you tell me every single seconds detail from that time when you born ?? ( i need every seconds detail ?? that what- what you have thought and done on every single second )

can you tell me every single detail of your `1 cheapest Minute Or your whole hour, day, week, month, year or your whole life ??

if you are not able to tell me about this life then what proof do you have that you didn't forget your past ? and that you will not forget this present life in the future ?

that is Fact that Supreme Lord Krishna exists but we posses no such intelligence to understand him.
there is also next life. and i already proved you that no scientist, no politician, no so-called intelligent man in this world is able to understand this Truth. cuz they are imagining. and you cannot imagine what is god, who is god, what is after life etc.
for example :Your father existed before your birth. you cannot say that before your birth your father don,t exists.

So you have to ask from mother, "Who is my father?" And if she says, "This gentleman is your father," then it is all right. It is easy.
Otherwise, if you makes research, "Who is my father?" go on searching for life; you'll never find your father.

( now maybe...maybe you will say that i will search my father from D.N.A, or i will prove it by photo's, or many other thing's which i will get from my mother and prove it that who is my Real father.{ So you have to believe the authority. who is that authority ? she is your mother. you cannot claim of any photo's, D.N.A or many other things without authority ( or ur mother ).

if you will show D.N.A, photo's, and many other proofs from other women then your mother. then what is use of those proofs ??} )

same you have to follow real authority. "Whatever You have spoken, I accept it," Then there is no difficulty. And You are accepted by Devala, Narada, Vyasa, and You are speaking Yourself, and later on, all the acaryas have accepted. Then I'll follow.
I'll have to follow great personalities. The same reason mother says, this gentleman is my father. That's all. Finish business. Where is the necessity of making research? All authorities accept Krsna, the Supreme Personality of Godhead. You accept it; then your searching after God is finished.

Why should you waste your time?
all that is you need is to hear from authority ( same like mother ). and i heard this truth from authority " Srila Prabhupada " he is my spiritual master.
im not talking these all things from my own.

in this world no `1 can be Peace full. this is all along Fact.

cuz we all are suffering in this world 4 Problems which are Disease, Old age, Death, and Birth after Birth.

tell me are you really happy ?? you can,t be happy if you will ignore these 4 main problem. then still you will be Forced by Nature.

if you really want to be happy then follow these 6 Things which are No illicit s.ex, No g.ambling, No d.rugs ( No tea & coffee ), No meat-eating ( No onion & garlic's )

5th thing is whatever you eat `1st offer it to Supreme Lord Krishna. ( if you know it what is Guru parama-para then offer them food not direct Supreme Lord Krishna )

and 6th " Main Thing " is you have to Chant " hare krishna hare krishna krishna krishna hare hare hare rama hare rama rama rama hare hare ".
If your not able to follow these 4 things no illicit s.ex, no g.ambling, no d.rugs, no meat-eating then don,t worry but chanting of this holy name ( Hare Krishna Maha-Mantra ) is very-very and very important.

Chant " hare krishna hare krishna krishna krishna hare hare hare rama hare rama rama rama hare hare " and be happy.

if you still don,t believe on me then chant any other name for 5 Min's and chant this holy name for 5 Min's and you will see effect. i promise you it works And chanting at least 16 rounds ( each round of 108 beads ) of the Hare Krishna maha-mantra daily.
Here is no Question of Holy Books quotes, Personal Experiences, Faith or Belief. i accept that Sometimes Faith is also Blind. Here is already Practical explanation which already proved that every`1 else in this world is nothing more then Busy Foolish and totally idiot.
every `1 is already Blind in this world and if you will follow another Blind then you both will fall in hole. so try to follow that person who have Spiritual Eyes who can Guide you on Actual Right Path. ( my Authority & Guide is my Spiritual Master " Srila Prabhupada " )
if you want to see Actual Purpose of human life then see this link : ( triple w ( d . o . t ) asitis ( d . o . t ) c . o . m {Bookmark it })
read it complete. ( i promise only readers of this book that they { he/she } will get every single answer which they want to know about why im in this material world, who im, what will happen after this life, what is best thing which will make Human Life Perfect, and what is perfection of Human Life. ) purpose of human life is not to live like animal cuz every`1 at present time doing 4 thing which are sleeping, eating, s.ex & fear. purpose of human life is to become freed from Birth after birth, Old Age, Disease, and Death.
General Discussion / CNC router for sale 1 1/2 year old
« Last post by lodze on March 22, 2017, 03:04:57 PM »
Hi guys
I own CNC router 1 1/2 years old. I have to sell it now because we will move out and won't have enough space to keep it.
With servo motors FANUC, ball screw, controlling software and with working bed 1250/2007mm
Can sell it with HSD 2.9kW spindle and YASKAWA inverter.
Build Logs / Re: Yet another Denford for the Collection
« Last post by mc on November 19, 2016, 12:54:10 PM »
I was going to post about some of the intricacies of the machine wiring, however I'll stick with controllers for now.
Now I've got all the boards, I need to mount them.
The old computer, which was bolted to the control cabinet door was removed, and a suitable bit 3mm aluminium sheet was cut to size. The reason for 3mm, is it's strong enough to bridge pretty big areas with minimal support, and thick enough for drilling/tapping for directly mounting items. Thinner would be marginal for drilling/tapping, and thicker just adds expense for little to no benefit.
First step once the sheet had been cut and drilled for mounting to the cabinet door, was to play tetris with the various boards-

Which highlighted the first non-ideal thing. My lovingly designed and built differential driver board would of been better had the in/out RJ45 jacks been the opposite way around. As it stands, it just means I need to make the cables a bit longer and they'll cross.
If noise was to be a problem, I choose the shielded jacks so shielded cable could be used if needed.
So now things are positioned, it's a case of marking out all the various holes, followed by drilling and tapping all the required holes.
When doing this, is I like to drill the required holes slightly undersized. Everything mounts via M3 stand-offs, and Standard/Course M3 has a pitch of 0.5mm, so the ideal tap drill size is 2.5mm. Instead I use a 2.4 or 2.3mm drill, as it allows a bit margin for if the drill isn't perfectly straight, or isn't drilling perfectly on size.
I then tap using a M3 spiral flute drill in the cordless drill, before hoping my marking out and drilling was on target-

Managed to only get one hole slightly off, but thankfully it was for the IDC breakout board, so a quick file and everything bolted together perfectly-

Something I like to do here, is although I fitted all the boards on the bench, I never tightened the screws until I had the plate bolted to the cabinet door. My reasoning for this is to minimise the amount of strain placed on the PCBs should the back plate twist any when finally bolted down.
And you may be wondering why the IDC breakout board has been added. I may need to use a couple of the feeds provided by the Kanalogs IDC header, so it's far easier to fit the board and not need it, rather than fitting it later and risk getting some swarf somewhere I really don't want to.
Build Logs / Re: Yet another Denford for the Collection
« Last post by mc on November 19, 2016, 12:52:20 PM »
Now having decided what general direction I wanted to go with the mechanics, it was time to look at controller options. For me personally, I prefer Dynomotion KFlops, as they are probably one of the most versatile controller available for the price, but this left me the problem of deciding what add-on boards were needed.
The first thing to consider was what input/output capability was needed.
For this purpose, I create a spreadsheet, and list every input/output I need, along with a note of the type of input/output needed. At the current count it's 28 inputs (2 analogue for SSO&FRO, 1 encoder input for a MPG, with the rest being basic on/offs), and 9 outputs (1 analogue with rest on/offs), along with the currently required 3 step/dir outputs.
I could of opted for a KStep board, which would of met the needs for driving stepper motors, albeit at a slightly lower voltage (it has a max Voltage of 50V), but it lacks any kind of analogue input.
The other option, was to use a Kanalog. Now this is primarily aimed at retrofits on machines using +/-10V servos, however as I'd like to keep my options open, it provides a good upgrade path. It also has analogue inputs, and differential encoder receivers.
It also so happens I already had a spare one sat on a shelf, along with a Konnect expansion board, which means I've got more inputs and outputs than required.
The only draw back was I'd like to make use of the differential inputs on the EM806's, and Dynomotion have nothing that outputs differential step/dir signals. So a solution was needed, and it came in the creation of this board-

On the KFlop, in standard configuration, the encoder pins also double up as the step/dir pins, of which 8 of them happen to go through a separate RJ45 connection (the other 8 go through one of the ribbon cables). This board takes those 8 lines, and by moving the jumpers, either routes them directly through to the Kanalog to be used as encoder inputs, or to the line driver chips on the board to be used as differential/line driven outputs.
So that was the step/dir differential outputs taken care of.
Build Logs / Re: Yet another Denford for the Collection
« Last post by mc on November 19, 2016, 12:51:30 PM »
Rather than have this thread as just another "look at what I got/done" thread, I'm wanting to explain some of the reasoning behind the choices.
Denford use pretty industrial type setups for their electrics, so all the control electrics in this machine already run 24V, which I'll be sticking with, as 24V controls pretty much eliminates all noise problems. (If there is demand I'll go into the details of the why higher voltage is better)
This particular machine is a VMC version (basically means it comes with inbuilt computer/display/keyboard), running stepper motors courtesy of a parker SD rack.
Here's a few pics.
Original control cabinet setup-

It powers up!

Check the whopping 1024kb of memory and 33MHz clock speed :-)
I love old school tech-

Now that's how it came. Cutting edge technology for the early nineties, and would likely still work if I could be bothered finding a working floppy disk drive to create a new floppy disk. But I need this machine working, not stuck running archaic software/hardware.
In an ideal situation, I'd install servos, however I don't have the budget or time to rework everything to fit servos.
Instead, I'm going to stick with the original steppers for now, and using modern drivers.
I've opted for Leadshine EM806s. A lower end drive would also of worked, but I want to make this machine as reliable as possible, so the stall-detection of the EM drives gives an extra bit protection should something go wrong.
Build Logs / Re: Yet another Denford for the Collection
« Last post by mc on November 19, 2016, 12:50:23 PM »
Since I'm still waiting for a computer to finish updating, I'll add some more.

The machine didn't appear to be in the best of condition, however on close inspection all the slides are in excellent condition, they just needed a bit clean. The spindle on the other hand didn't feel so good. Removing the spindle motor didn't improve the feel, so after removing a bit more, the problem became obvious-

The machine had got wet at some point, as there was rust around the spindle from where water had been sitting, so a couple new bearings, some grease, and the spindle is as good as new.
I still need to decide on the final preload of the bearings, as even the Denford guys say they were just done by feel in the factory.

The other issue, in true education system style, the mill had been used to machine wood. My lathe was the exact same, with dust everywhere, and a nightmare to clean.
Build Logs / Yet another Denford for the Collection
« Last post by mc on November 19, 2016, 12:48:09 PM »
So, after a bit negotiation, this got dropped outside the workshop a few weeks ago -

I'd been looking for a Denford Triac for a while, and this one ticked most of the boxes (enclosed, coolant, ATC, autolube). My only complaint is it's a BT35 taper, however it also came with this-

Which should be enough holders to keep me going for a while. I have possibly found a source for new holders, however I'm weighing up the options between buying new holders, or converting it to BT30.

One thing I do have to mention, is a set of machine skates has got to be one of the best things I've built. Made rolling it into place very easy -

I'll gradually add to this thread, but at the current moment, the machine is still partially dismantled, mostly cleaned, and the old controller stripped from the cabinet.
Build Logs / Re: Denford Cyclone retrofit
« Last post by mc on April 22, 2016, 11:40:29 PM »
So after persevering with Mach3 and it's random quirks, another unlocked turret in to the spindle incident a few weeks ago prompted me to finally ditch Mach3. The final crash resulted in a broken drill, and knocking both the turret and the spindle out of alignment.
My Mach M6 macro should never allow motion to resume until the turret has re-locked, however it would randomly start moving before the turret had stopped moving. On the plus side, it gave me plenty practise at re-aligning things :\

I had been working on the required KFlop C programs to move to KMotionCNC, so after a night spent realigning everything, giving it a good clean, and doing a few little repairs/adjustments, it only took another night of minor code edits to get things movement, then a couple evenings to create, test and debug the final C programs required to set up and adjust tool offsets, and alter the code required to recover the tool changer in the event it fails to initialise. As it stands, there are still a few minor issues with my C programs, but they're not show stoppers.

As for comparing KMotionCNC to Mach3, I like it very much.
It certainly doesn't have all the bells and whistles that Mach3 has, but it just works. It has all the essentials you need to run a CNC machine, it's reliable (I've not had a single issue that hasn't been caused by me doing something stupid), and the performance is far better. Things like feedrate/spindle speed overide work far faster, and feedhold works near instantly.

My personal favourite feature is you can edit G-code files without having to open it in an editor and then waiting for it to reload. If you want to make a minor adjustment to the code, you can do it while the file is still running.  It's very handy for things like if you've been using the FRO to find a good feedrate, you can then just alter it in the g-code, and the new feedrate will be used the next time that bit of code is run.
In Mach, you'd have to make a note of the feedrate, wait until the file finished, load it into the editor, edit it, then wait for Mach to reload before you could run the code again.

However, the major benefit is, it's given me confidence in the machine. I was forever baby sitting Mach to make sure I was near if it decided to do something stupid, but with KMotionCNC, I'm happy to walk away and do something else without worrying.
Welcome! / greetings from Switzerland
« Last post by asselin22 on January 28, 2016, 01:08:52 PM »
Hello guys, i'm Pierre from Switzerland ,43 years old, i'm a CNC hobbyst, i like modeling too(train,boats..) i hope i can learn from you guys and contribute to you as well, i hope i'd be part of this community, that i'm sure will grow and become bigger by time.
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