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So I'm trying to get my vfd to output an alarm signal to my control board when it has a fault. I can't get the relay to switch when the output parameter is set for fault output. When the setting is...

Yeah all the other connections look fine! That is interesting though! Thanks for the info John!

Hmm so it seems its not common! I think I may just solder a wire directly to the board then. Hopefully more connectors don't go on me.

Hi I've been running a gecko g540 for almost two years now and just last weekend I couldn't get a red light on it much less green. After a bit of probing around I found the the circuit board ground...

Thanks Gerry, that's what I wanted to hear!
I hate going slow! I wonder if the charts are all wrong because they all seem to be way to slow....

Hi I just finally bought some good quality bits from Amana Tool and they have a special coating on them that is supposed to make them last longer. I was looking at their feeds and speeds...

http://www.automationtechnologiesinc.com/products-page/g540-stepper-motor-kits/4-axis-stepper-motor-cnc-router/

Here is a kit I'm looking at... Those steppers have an inductance of 6.4 How much...

By that you mean highest torque low inductance so as to be most efficient when put with the gecko 540 drive?

OK I'm surfacing this thread again... I'd like some advice on how much power I need to reach my desired rapids in x and y.

Gantry weight: 70kg

x travel: 1300mm

y travel: 700mm

Drive...

I don't have the money for buying a Cnc so I would have to either loan.... Go cheap... Or take a long time... Over time I could make 5k extra cash but I don't know if I want it to take a couple...

I want to build it not just buy it! I love building things but I don't have the upfront funds to build. I'm thinking kickstarter could be a good way to help me get funded but I have fears of not...

Well, I'm not necessarily trying to build a low cost cnc, but a small industrial quality machine that has the speed and rigidity to crank out fast cheap balsa kits/ aluminum rc parts/boxes and...

My dream is to someday make my own Cnc router to do some jobs on the side. I'd love to Help younger teens/ kids to get into the rc world. I could make kits for cheap etc to get them hooked. I feel...

Yeah, kinda what I'm thinking shimming is just a little time consuming but still easier than scraping... I did some research on scraping and yeah it's probably won't be worth it.. Just seeing what...

Alright, I did some more alignment/straightness measurements using an aluminum flat bar stock I found as a straight edge it's below 0.01mm deviation in width and I was pleasantly surprised how...

How level does a table have to be to have an effective epoxy pour? Seems to me as long as I get it pretty close the epoxy will take care of any warp and slope in my table. A thin laser level will...

OK... so i did some deflection measurements.. On the 3 inch side rails using my own body weight (160lbs) i could only get it to deflect 0.001" on the midpoint between 2 legs. On a single cross...

Well here is a picture of the frame. I think I will put a frame around the bottom to tie all the legs together to make it more rigid and a shelf for electronics.337666 Do i need to make it that...

I got some questions again....

1. If I'm going to pour epoxy to level my rails do I need to do it exactly where the machine will sit when finished? How much would moving it throw it out? ...

Yes the drill heads are pneumatic and the rpm can be slow enough but I don't want to worry about the machine capabilities. That's why I'm building my own machine. So I can make it for what I want...

I thought of using the machine to drill directly but my boss doesn't want me to drill or machine steel because it is a nest based router for cutting sheets otherwise I wouldn't think twice! I've...

Well they should be in a perfectly straight line as the cnc at work is a large insutrial one. What material can the template be? I don't really think the boss would like me to use aluminum on there....

Thanks for your 0.02! I have considered doing the epoxy method because I think I can source that quite easily.. Can I drill a template on another Cnc to drill and tap the holes for rails? Will...

Hi I'm building my first Cnc here and I've got my table mostly assembled/welded I was planning on mounting the linear profile rails on the outside side but then I read something on here about...

True enough! My budget grows with time because this is coming from my "hobby money" and extra each month goes to hobbies. The only way a budget will be an issue is if it has a timeframe which it...

Right, my designs do change. LOL When I first contemplated building a cnc I was imagining it to be a lot harder than it seems to be now! There is so much information on here that I rethought and...

Good point! I guess if there is this much help on the forums any minor or major problem can be brought here! So If I do start off with building my "good" Cnc, aluminum don't tickle my funny bone at...

OK so you're saying it doesn't work at all? Not even poorly? I'm trying to save money for my first build so I can afford better setup for the second one. If it absolutely no way will work I would...

Thanks! Yes I'm testing the DIN rail in case I want to use it for a project that doesn't require loads or tight tolerances!

Thanks wizard! I'm not looking for terribly good tolerances in this one. I'll be cutting foam and maybe wood with it max, just to get the general basics of building a Cnc since its my first I'll...