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If I reverse the design won't it be front heavy once the router is installed? More weight would be on the from bearing blocks.

If I don't reverse it, both bearing blocks should have equal weight...

Thanks guys,

My plans for the CNC is to hopefully make some money, but we'll see. If not, I am into guitars, so creating parts would be great. Plus it might get my kids interested in engineering....

Hi All,

Been a while since I last posted, but I got interested in making a CNC machine. Mostly because I want to have something to fall back on.

I'm in IT for 20 years and I've had enough, so...

No they are round linear rails....

dinky,

Hi ger21,

I sent you a PM....I'm having issues placing an ad....

dinky,

Hi All,

I have some news sets of linear supported rails to sell. I saw the classifieds section here:

Misc Parts (linear slides,pillow blocks etc...) - CNCzone.com-Classifieds Buy and Selling
...

Thanks all,

That picture is from a member on this forum, and although I was thinking of a similar gantry design, I was hoping the design wouldn't be criticized since my intent was to find a...

Hi All,

I'm planning to build a similar gantry design using 3/4" thick 6061 aluminum and 20mm supported round linear rails. The top piece is 34.5in long and 3in wide. The supported rails will be...

Thanks for your reply,

I've watched all those videos and they have helped so much.....but I think I figured it out. I used the network surface command along with the options to create the...

Thanks everyone,

I was thinnking about creating a drawing and using that as a template to mark my holes. I've used visio in the past which helped a lot....I just wasn't sure if that's how you...

Hi All,

I'm building my z axis and have 4 of these bearings:

http://ts3.mm.bing.net/images/thumbnail.aspx?q=4747657587917666&id=b03260582758795c006a362d751c0fa5

But I don't know hold to...

Hi All,

Can someone explain how to create the contour that goes from the heel to the necK?

If you look at the second picture on this page titled "Figure 2. Screen Shot from Rhino3D" you'll see...

Hi All,

Can someone explain how to create the contour that goes from the heel to the necK?

If you look at the second picture on this page titled "Figure 2. Screen Shot from Rhino3D" you'll see...

Thanks again guys....great info!

dinky

Thanks guys,

The aluminum I plan to use is mostly stock, 1/4" to 3/4". The table will have 80/20 extrusions with some t-nuts...

Any particular type of loctite I should use?


dinky,

Hi All,

I started building my z axis yesterday and I'm screwing down my supported round linear rails.....

I was wondering if I should use anything to prevent all my screws from backing out from...

Thanks again guys!!

I really appreciate all your feedback!

dinky,

Thanks LazerBee,

Your not being mean....I just didn't understand what the resistors were for, so I asked questions to someone who supposed to deal with them and they didn't answer me, as if they...

Thanks drools,

I'm glad someone could help me....So, in my case would it be better for me to run the motors without resistors? Those motors are 3.5a max., what would you suggest? Since my machine...

So I emailed Keling questioning if their kit

CNC Stepper Motor Kit: , Stepper Motor, Servo Motor, Power Supply Automation Technology Inc

comes with a resistor for their motors and their...

Thanks guys,

Very technical explainations but I think I understand....I'll probably go with my gut and stick with the G540 w/ 381oz-in motors from Keling....in addition, getting an e stop, 3 limit...

Just an FYI, I was reading the G540 manual and it says that if your using 3.5a motors you don't need a resistor....

"If your motors are rated below 3.5A you must use a current set resistor across...

Hi All,

I saw this setup on ebay:

Gecko G540 w/ Three Nema 23 Steppers 620 oz/in motors | eBay

Most of the G540 kits I saw have 381oz-in motors w/ 4 wires.

The ebay kit has 620oz-in...

Thanks adam_m,

The motors from Keling, did you have to wire the resistor and crimp the DB9 connectors?

dinkyguitar,

Thanks Walky,

Unfortunately, I bought my ballscrews a few months ago before I came across whipping, and all my ballscrews are 5mm.

Cool video's! Looks like it has lots of speed.

dinky,

Thanks Lee DeRaud,

How was it dealing with them? How long after you ordered did you get your stuff?

dinky

HI All,

As a newbie, where is the best place to buy the whole package, G540 and 3 drives with everything I need?

I saw Keling $455, but I think I need to install the motors resistors and get...

Thanks for your help!!

Pplug,

Here are the ball screws I have. The specs say "lead 5". Not sure what that means though :confused:

Any suggestions or best place I can get the whole package?...

Hi All,

My cnc will have a 36" x 24" working area, all aluminum, 20mm round linear supported rails, and 16mm ballscrews.

I plan on milling wood mostly, with some aluminum.

My question is, is...

Thanks guys,

As for the dowels, I was thinking steel of course.

Where is a good place to buy these type of screws? I probably won't get a good deal at my local hardware store.

Would these...