November 3, 2017, 3:37 pm
Hi all!
Looking at building a moving gantry router for aluminium/plastics milling.
I'm trying to understand the best design for the z axis.
I read that having moving rails and fixed carriages (trucks?) is a better approach than the other way around, but most builders seem to have fixed rails.
I can see that having the rails on the spindle plate will allow more z axis travel, if you allow the spindle to move down so it's under-hanging the carriages, but I would guess this would not be very rigid.
With moving carriages, the z travel can really only the same distance as the tool tip to the bottom carriage - so maybe halfway up the spindle body.
Is there an optimum way to build the z to get a reasonable travel, say to clear a vice, and to stay rigid?
Sketch showing both options and travel in z:
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November 3, 2017, 3:38 pm
just setup new 440 and endless troubles. bad usb cable, mouse button sticks, had to tap many holes to get screws to fit enclosure. Made 2 calls to support and 24 hours later no responce so I thought i would try forum. I power on 440, press reset. then Ref xyz. Z goes well but x and y do not. seems limit switches dont work but when I test switches they work fine. Any thoughts where to check?
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November 3, 2017, 3:40 pm
i only have a few parts i've done this deep and i cant seem to get the hang of it.
on my finish pass i'm running a 1/2" 3 flute carbide tool, 2.75" stick out, DOC is 1.875", 40 IPM, 3500 rpm and i'm only taking off 0.005" oh and this is in 6061 aluminum and a 2" cut length on the tool. the part is very rigid.
sometimes it works and others times it doesn't and of course as soon as it gets some chatter the damn tool pulls out and wrecks my bottom plane.
any suggestions would be awesome
i working with a pcnc1100 series 3.
thanks guys
Carlos
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November 3, 2017, 4:21 pm
I manufacture a part out of 1.5 inch plywood. My goal is to minimize my bottlenecks. I have found a company that can make me a router to the specs below. Do you think it would be powerful enough to cut through the wood in one pass? Or should I first find the router bit then design the machine around the bit? BTW I have no router experience.
(1) Working Size: 60x60 inch
(2) Heavy Duty steel tube frame; Laser cut steel rails, gantry, and carriage components.
(3) 4-zone Vacuum table with embedded t-slot rails
(4) Rack and pinion drive for X and Y axis; Lead screw drive on Z axis
(5) Custom laser cut rails with precision ABEC bearings, providing a robust but inexpensive and forgiving linear motion system
(6) 6KW Air Cooled Spindle. Liquid cooled spindle option.
(7) 5KW Inverter;
(8)1700 oz/in servo motors;
(9) Tool origin touch-off sensor
(10) DSP controller
(11) Several CAM packages available depending on the customers' needs
(12) Machine and controller voltage 110V. Spindle voltage 220V
(13) Complete set of 11 ER20 collets
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November 3, 2017, 5:33 pm
Good Afternoon to All... I'm in desperate need for a Doosan Puma 400MB post.... Currently using Gibbs and hate being held hostage.
Any Help Greaty Appreciated
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November 3, 2017, 6:27 pm
Unto Hey Guys,
'I am planning on using a Centroid Oak board on my SkyfireCNC mill, which I purposely ordered without any controls/electricals....
I have sent the kind folks at Centroid the question, but perhaps any of you existing owners might know - is it possible to use your own keyboard/button panel with the Oak board? I am planning on doing a full-size panel of my own design, this would be a big plus.
Further, I would assume we can map buttons from an external keyboard to the software interface?
Looking forward to feedback/comments.
Cheers,
beano
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November 3, 2017, 6:27 pm
Unto Hey Guys,
'I am planning on using a Centroid Oak board on my SkyfireCNC mill, which I purposely ordered without any controls/electricals....
I have sent the kind folks at Centroid the question, but perhaps any of you existing owners might know - is it possible to use your own keyboard/button panel with the Oak board? I am planning on doing a full-size panel of my own design, this would be a big plus.
Further, I would assume we can map buttons from an external keyboard to the software interface?
Looking forward to feedback/comments.
Cheers,
beano
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November 3, 2017, 7:49 pm
I have an older 4020 with an 88 control and the main board is a 1400-2. When I hit Jog it flashes on screen then goes away. I have tried everything and finally put a 1400-1 board in and it works fine except this isn't my board and it's very old now. I sent 1400-2 in for repair and they replaced CPU but still same issue. I would keep the 1400-1 but DNC doesn't work and it skips numbers and feed rates or makes a F30 into F3 and -10 into 10. Errors I get with 1400-2 are C (spindle) but spindle works fine. This issue started when I dropped a leg of my 3 phase power on startup one time and then hooked it back up and this was the issue not sure if coincidental. I've pounded on jog, zereo pointed memory everything I could find.
Has anybody had this issue and did you fix it?
Thanks,
Red
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November 3, 2017, 1:06 pm
Howdy CNC people,
Long time lurker, first time poster. A couple of years ago, I designed and built a CNC machine. During that process, I used this forum extensively for design ideas, troubleshooting, and general sanity checks. I finally got around to putting together documentation of my build, so I thought Id post it here to help out some other people.
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Here is a link to my website with a full description of the build including a CAD model and bill of materials.
TLDR:
- ~2ft x ~4ft x ~5 in build area
- Xylotex drivers
- Rollerchain x and y axis with CNCrouterparts bearing trucks
- Pre-built z axis
- Aluminum Gantry, Wood Table
- ~$1500 budget including all major components
She wont win any beauty contests, but she does what I need her to do.
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November 3, 2017, 10:56 pm
Hi Guys
I'm hoping someone can help me. We have a Fanuc Tape Cut Model R EDM machine and it seems to be working fine but is quite old.
I'm trying to locate the battery and can't seem to find it. I would like to replace the battery before the current ones go flat and we lose all the parameters.
Does anyone know where or if there is a battery and what the best procedure is to replace it without losing parameters?
Thanks
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November 4, 2017, 12:32 am
Looking at a used CNC Mill. Lexica CX-9000 control on an Acra mill. Really clean CNC retrofit installation. Control appears to be from the 90's. 3 axis servo based system.
Anyone familiar with this system? I haven't been able to find any info on it.
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November 4, 2017, 2:23 am
Hello guys,
This was the first time I imported a machine from China. I purchased a laser engraving machine from Lasermen. They were incredibly helpful with all kind of questions, doubts and basic informations I needed.
My contact was Grace Guo, a very recommendable professional. The pre-sales service was very good with Grace, she made very easy the experience buying a laser machine, she guided me to find the accurate machine I needed for my job.
Actually I have a professional studio of Architectural scale models. So Idecided to buy a LM-9060 CO2 laser engraver, with a100 watt laser tube. In June of 2017. they delivered the machine, and after 40 days, it arrived in Madrid, well shipped
and very well packaged, in perfect conditions. And It works very good, more than expected !!!.
Would I recommend Lasermen?. Yes. I would definitely say check out this
company of Jinan City. This company gives you a fantastic customer
oriented and unbeatable relation price/quality.:)
Arch. Mariano Sabato
www.proiectum.com
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November 4, 2017, 5:08 am
Dear all, Newbie here :-) Have just brought a Chinese Milling/Laser and have the following problem! Behind the scenes- Had to swap the laser connector round as it was wired up as Positive to negative on the connecter. When it was done, the laser worked. It is a 2mW model with fan on the top wired with the laser so they both come on. I think the Firmware on the board is GRBL 0.9 I want to very the brightness of the laser so i can burn photos etc. I tried using LASER GRBL but it just stays on Full Power and burns everything!!! I`ve heard that i need Firmware 1.1 to have this feature!! Is this true!!!!? If not, how did you guys cope with burning stuff without the whole thing looking like a big lump of charcoal!!!? I have had nothing but problems in getting a driver and the computer reconising the USB!! Have spent days and days trying to sort this out. I use Windows 8.1 on main comp and Windows XP on my Laptop. Some software will work on one but not the other etc etc. Thank you for your valued time in reading this and I hope you can help me. Thank you very much :-)
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November 4, 2017, 5:56 am
I am looking for a complete hardware setup to make a new controller for my cnc router.
I have 4 yaskawa sigma 7 servopacks (+-10v analogue) and a spindle to control.
What would you recommend nowadays for hardware? Mesa cards seems to be really good?
any further info is highly appreciated!
Thanks,
Joe
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November 4, 2017, 6:21 am
Is there a TTS arbor available for holding gear cutters? I have the TTS slitting saw arbor, 1" hole, but it isn't keyed. I see R8 arbors available. Is that what people use?
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November 4, 2017, 6:21 am
I wish to start a training course for the less fortunate over here and maybe set them up in a livelihood program here in The Philippines.
I am planning on building the machine myself and cut down the costs (option 1) as our charity only has a small budget for this. We mainly deal with malnutrition and housing for indigents.
I am hoping to cut the costs, because we are a registered charity. Windows 10 Pro is only 10 dollars from MS through TechSoup, Fusion 360 is free to us also, as is most software. We have been offered some discounts on hardware in the past week. If anybody else here knows companies that are helpful to non-profits, please let me know.
At the moment am just reading threads here and learning Fusion 360. The CAD end I find easy as I have used CAD before. CAM is a different story, so I will have to read up and study that a bit.
Any advice is most welcome. Whether to go with Mach 3/4 or the new Acorn. I presume most of you will say to buy Gecko drivers (expensive but good?).
I will not name our Foundation here for fear of facing the wrath of the moderators, but we are fully registered and all our board are volunteers.
P
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November 4, 2017, 6:42 am
Hey All,
We hope you are having a great weekend, we wanted to share a link to our updated Video Gallery on the website.
Please be sure to come check the latest information out and don't forget we have plenty of support to go around so call or email us with any questions.
(Sorry we don't get online here as much as we would like)
https://www.shopsabre.com/education/educational-videos/
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November 4, 2017, 7:39 am
I am building a CNC rounter (it's the GRUNBLAU Platform CNC) I'm using a Huanyang VFD and the typical Chinese 2.2 Kw water cooled spindle. The system uses a Gecko G540 controller which I am connecting to a Windows 10 PC running Mach 4 with a PMDX-411 Smart BOB-USB w/ DB-25 connector.
I successfully hooked everything up and got it to work through Mach 4 to turn on the spindle and to control the speed. Or so I thought. I hadnt attached the spindle to the machine yet. While I was hooking it up and configuring everything I just had the spindle laying on the table not connected to the machine. Today I finished the machining I needed to do to my spindle mount to get it on the machine and when I mounted the spindle to the machine is when the issue showed up. When I turned everything on and started the spindle up to 24,000 rpm through Mach 4, it would only reach 12,000 rpm. The VFD output was peaking at just over 200 Hz.
I spent the next 2 hours troubleshooting and found that when I removed the spindle from its mounting bracket and laid it on the table it would spin up to the full 24,000 rpm/400 Hz. If I took a section of wire and touched one end to the spindle housing and the other end to the machine mount the spindle would immediately drop back to 12,000 rpm/200 Hz.
I took a meter reading of the V1 input from the Gecko to the VFC and the voltage is at 9.8 volt or so when the wire isnt connected and drops to about 5 volts when it is. It appears there is something that is causing a 5 volt loss in this signal when it is connected.
So my question is; has anyone seen had this happen to them? Or, do any of you know what might be causing this and a possible solution?
I have also disconnected the Gecko board from the VFD and hooked up an independent power supply to the V1 and AMC terminals. When I control the speed with that power supply the issue of contact with the spindle mount dropping the speed goes away.
Any assistance would be greatly appreciated! If you need more information please let me know.
Thanks in advance for anyones time
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November 4, 2017, 7:44 am
I currently use a passive probe on my PCNC770 but am looking into getting the Haimer Zero Master (analog). My passive probe is plenty accurate for me, but I am spending alot of time jogging around a part to check flatness/profile, tram/angle, verify zero in a couple spots, etc before making a cut. This is where I am hoping the Haimer will help.
How does it work that it can zero in 3 axis? I don't believe it has an aligned x & y travel? I guess what I am asking is if you hit something on a 45 deg angle can it find the center of that also.. I am thinking it will because I don't see any other way it could function, and I have read that you can spin the tool so the gauge faces any direction. How about when the probe engages traveling in Z, does this somehow "lock out" x or y probe travel?
I want to be able to tram along an edge or surface with it.. will this work? For example, if I come down in Z to 0, then travel in X to check level/flatness on the top face of a part, will it give me an accurate read out of deviation in Z? Or will moving in X dragging on the surface displace the probe in X and give some other odd read out. Same thing for coming into Y0 on the edge of a part then tramming in X or Z. Although I realize the probe is pretty short so tramming in Z isn't going to do alot for me.
Any help or advise is appreciated!!!
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November 4, 2017, 8:11 am
I was running parts, 2 done 4 to go, After 3rd piece was put in chuck, I pushed start and walked away. I came back expecting a finished part and machine was just sitting there with the spindle turning (looked a little slow) doing nothing. error on screen was # 9208 " spindle not in set range" All I can find on this error is to check the G26 and G92 set points. G26 = 4600 and G92 is at 1500. Machine should have been at 363 RPM and it was showing 212. Power off - reboot, same thing. I cannot find anything on spindle speed calibration or any trouble shooting on this error. HELP.
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