Author Topic: Banggood Z-axis tested  (Read 2561 times)

wild.bill

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Banggood Z-axis tested
« on: April 07, 2017, 11:16:43 AM »
For a while now people have talked about the Banggood Z-axis product
http://www.banggood.com/CNC-Z-Axis-Slide-Table-60mm-DIY-Milling-Linear-Motion-3-Axis-Engraving-Machine-p-1098936.html?rmmds=buy but no one has ever said that they were using one. So I purchased one a while back and today finally had time to look at it.

It looks like a solid design and is quite well built. When I got it I was surprised because it was a better product then I expected.

So this morning I did a quick and dirty (meaning I didn't take the gantry off) install of this unit. I took my laser off the mount I made for it a while back and mounted the Z-axis unit onto the mount, and them mounted the laser onto the Z-axis with only one TIGHT screw - that was all I could do without making some new parts.

With this crude install it seemed to be solid and could not feel any play in the X-axis carriage so it was time to try it out. I took out my old L6 board because it supports Z-axis in installed it and plugged the new unit in. The movement was smooth and quiet so no problems here. I then used it to get the laser focused on some cardboard. Using T2 I loaded a DXF file that I had for testing and fired things up. The resulting burn showed no difference than what I got before install the Z-axis. OK so lets try a gray scale image and again the results we the same as before.

I took a close look and could not see any signs of wobble so my conclusion is that while this unit is cheap it does a good job and is light enough to work well on a modified Banggood table. It worked well enough that I will keep using it and make a proper mount for things.
I was surprised that it worked as well as it did with 2 screws holding the Z unit on, and only 1 screw holding the laser on.

Here is a picture of it mounted.

Laser: was an A3 2.0w TTL L6 Z axis now 2'x3'
          OpenBuilds ACRO 510 w/ 2.0W TTL laser Cohesion Mini Z axis Homing switches
          K40 Cohesion Mini 60W LightObject LPS
          80W Red-Black 500x700

cool is simply a subjective state of mind

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Re: Banggood Z-axis tested
« Reply #1 on: April 07, 2017, 11:25:30 AM »
Thanks for posting Bill...
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nottingham82

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Re: Banggood Z-axis tested
« Reply #2 on: April 07, 2017, 11:28:22 AM »
awesome work bill.  I hope you dont mind I shared your result with Eleksmaker.  I think this needs to be their approach to their fixed focus 7 watt laser
Laser: 2500mw A5 eleks maker
OS: Windows 10 all in one pc
Software: T2
http://www.gearbest.com/3d-printers-3d-printer-kits/pp_290386.html Paid $160 in 2016

Stonemull

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Re: Banggood Z-axis tested
« Reply #3 on: April 07, 2017, 11:31:33 AM »
Hmm, dammit I think I want one.
I would want to attach a little brushless motor with a small drill and drill pcbs with it.
A3 Eleksmaker 2500mW
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Wanhao I3+ touch
Hacked Roland DXY-880
CNC3018 engraver
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wild.bill

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Re: Banggood Z-axis tested
« Reply #4 on: April 07, 2017, 11:33:35 AM »
No problem, I did the test so the information could be shared.

I will probably have another picture later because I am making a wood dowel for the height of the laser when its focused. Should make the focusing process easier and faster.
Laser: was an A3 2.0w TTL L6 Z axis now 2'x3'
          OpenBuilds ACRO 510 w/ 2.0W TTL laser Cohesion Mini Z axis Homing switches
          K40 Cohesion Mini 60W LightObject LPS
          80W Red-Black 500x700

cool is simply a subjective state of mind

ggallant571

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Re: Banggood Z-axis tested
« Reply #5 on: April 07, 2017, 11:35:53 AM »
Questions:
 1. Does it improve your ability to focus?
 2. Is it repeatable?
 3. Does it enable deeper/faster cuts?
SARCASM - Just one more service we offer here.

nottingham82

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Re: Banggood Z-axis tested
« Reply #6 on: April 07, 2017, 11:36:52 AM »
no doubt.  Ugh i seriously want an a3 and a 7watt with this setup.  Now do I part it and build myself or get an a3 kit with no laser and pick a few of the parts I want!?!
Laser: 2500mw A5 eleks maker
OS: Windows 10 all in one pc
Software: T2
http://www.gearbest.com/3d-printers-3d-printer-kits/pp_290386.html Paid $160 in 2016

wild.bill

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Re: Banggood Z-axis tested
« Reply #7 on: April 07, 2017, 11:38:36 AM »
Another non laser use at some time I will mount a motor and needle for cutting foam. Got the idea from another forum and there is a lot of information and refinements of the design at
http://forum.flitetest.com/showthread.php?24251-Cutting-foam-sheets-with-a-needle!
Laser: was an A3 2.0w TTL L6 Z axis now 2'x3'
          OpenBuilds ACRO 510 w/ 2.0W TTL laser Cohesion Mini Z axis Homing switches
          K40 Cohesion Mini 60W LightObject LPS
          80W Red-Black 500x700

cool is simply a subjective state of mind

wild.bill

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Re: Banggood Z-axis tested
« Reply #8 on: April 07, 2017, 11:45:41 AM »
Questions:
 1. Does it improve your ability to focus?
 2. Is it repeatable?
 3. Does it enable deeper/faster cuts?

1) Yes - I am burning images into a lot of different things and sometimes use the aluminum honeycomb base. I have exceed the focus range of the laser and had blocks that I would lift the hole bed so I could get things focused -- so this will improve things for me.

2) Yes with the dowel but without it No. If you added homing switches you could make it as repeatable as a bed that has homing switches is repeatable.

3) No idea because I don't cut very much - and its long enough between cuts there is always a little trial and error for me.
Laser: was an A3 2.0w TTL L6 Z axis now 2'x3'
          OpenBuilds ACRO 510 w/ 2.0W TTL laser Cohesion Mini Z axis Homing switches
          K40 Cohesion Mini 60W LightObject LPS
          80W Red-Black 500x700

cool is simply a subjective state of mind

nottingham82

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Re: Banggood Z-axis tested
« Reply #9 on: April 07, 2017, 11:48:27 AM »
I profess bill to be the user of the week! congrats bill

(fyi I dont actually have that power)
Laser: 2500mw A5 eleks maker
OS: Windows 10 all in one pc
Software: T2
http://www.gearbest.com/3d-printers-3d-printer-kits/pp_290386.html Paid $160 in 2016

Stonemull

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Re: Banggood Z-axis tested
« Reply #10 on: April 07, 2017, 12:00:26 PM »
...and purchased.

Along with a 0.3 to 1.2 mm pcb drill bit set.
A3 Eleksmaker 2500mW
Solidoodle V2 Pro
Wanhao I3+ touch
Hacked Roland DXY-880
CNC3018 engraver
CNC Plasma (work in progress)

ggallant571

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Re: Banggood Z-axis tested
« Reply #11 on: April 07, 2017, 12:05:29 PM »
Sir Nottingham - King (or Queen) of laser etching has blessed your endeavor.
SARCASM - Just one more service we offer here.

wild.bill

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Re: Banggood Z-axis tested
« Reply #12 on: April 07, 2017, 10:45:25 PM »
Sometimes I use an old L6 and the rest of the time I use a CNC Shield. Either will work fine.
Laser: was an A3 2.0w TTL L6 Z axis now 2'x3'
          OpenBuilds ACRO 510 w/ 2.0W TTL laser Cohesion Mini Z axis Homing switches
          K40 Cohesion Mini 60W LightObject LPS
          80W Red-Black 500x700

cool is simply a subjective state of mind

Stonemull

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Re: Banggood Z-axis tested
« Reply #13 on: April 08, 2017, 12:05:41 AM »
What 3axis controller board will you use?

I have a bunch of pololus so for the short term I will probably breadboard it to evaluate, then either knock up a little add on pcb to hold one or buy a 3 or 4 axis upgrade later.
 z axis requirements will not be harsh.
I was mucking around with my old plotter last week and managed accurate feed of 20000 on a breadboard rig.

https://imgur.com/gallery/00W82
A3 Eleksmaker 2500mW
Solidoodle V2 Pro
Wanhao I3+ touch
Hacked Roland DXY-880
CNC3018 engraver
CNC Plasma (work in progress)

wild.bill

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Re: Banggood Z-axis tested
« Reply #14 on: April 08, 2017, 07:01:48 AM »
Yup, the reality is you don't need a packaged controller at all.
But yes - as long as you know how to wire it you can add the stepper controller to any board.

For one system I have an Uno with screw terminal wired to 4 heavy duty stepper controllers  that are 2/3 heatsink, which I happen to drive with 24 volts. I was using a CNC Shield at 24Volts but the pololus would not take the current. All the bi-polar stepper drivers have the same wiring. Pulse, step direction, and enable on the logic side, and power and 4 motor wires on the motor side. Once you have done one its easy.

Laser: was an A3 2.0w TTL L6 Z axis now 2'x3'
          OpenBuilds ACRO 510 w/ 2.0W TTL laser Cohesion Mini Z axis Homing switches
          K40 Cohesion Mini 60W LightObject LPS
          80W Red-Black 500x700

cool is simply a subjective state of mind