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Messages - Agastar

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Trouble Shooting / Re: Weak button not working anymore...?
« on: July 08, 2016, 04:49:00 AM »
This is the board I have running the 500mw laser module. The weak laser button works on this model.

General Discussion / Re: Advice Please (especially Ralph's)
« on: July 08, 2016, 04:06:27 AM »
There are so many factors that can cause jams and it can make you go mad trying to figure it out.

I ran an Ultimaker2 for a couple years on and I can tell you that the first six months I almost went bald :). It was a huge learning curve for me but one I got more familiar with 3D printers the less problems I had. When I first started I had about a 10-15% success rate and after about 6 months running it every day I got up to about 75% success rate. After that I was able to get up to 90%+.

Don't give up, it's soooo worth it IMO.

A tip, buy acupuncture needles just smaller than your extruder diameter and that will help clear out clogs. Also dissemble your extruder and check the path the filament will go through your extruder. Be sure and pull a clean plug of filament out so that the extruder is clear. Take a piece of filament and push it into the extruder while it is cold. It should travel smooth until it bottoms out in the extruder. If if you feel it snag as you put it in, take it apart and investigate what is causing it to snag or hesitate.

If you have a Teflon or PTFE piece the run a drill bit the size of your filament through it to clean it up. Also, check your insert periodically, mine had to be replaced about 1.5 - 2 months. That changed based on how much ABS I printed during that time.

These machines can be temperamental but eventually you will be able to do preventative measures that will increase your success rate.

Here is a picture of a project my son and I did.

T2 Engraving / Re: Using T2Laser to engrave on Cylindrical Objects
« on: July 07, 2016, 06:42:51 PM »

T2 Engraving / Using T2Laser to engrave on Cylindrical Objects
« on: July 07, 2016, 03:33:21 PM »

I'm thinking about building a small engraver using the 3 axis Eleks Maker board to engrave pen blanks that I have turned out of wood or other cylindrical objects. The laser will move left and right but the forward and back will be used to rotate the object.

My question is would T2laser work for this. I'm assuming I would need to adjust some settings for different diameters.


T2 Engraving / Re: Minor bug in T2
« on: July 07, 2016, 02:43:31 PM »
You're welcome  :)

T2 Engraving / Minor bug in T2
« on: July 07, 2016, 10:40:56 AM »
First let me start with this, the cause of this issue is due to user error. I'm only mentioning this because of the need to use task manager to close the app once this has happened.

Running on Windows 7 64bit using either 1.2t or 1.2w, when you try and open an image (jpg, bmp, etc...) while in sketch mode, a MessageBox pops up and displays an invalid file type warning. When I click okay I get an IndexOutOfRangeException that keeps popping up no matter how many times I click ok. I didn't check to see if it would eventually go away once all the items were attempted to be loaded or if it was stuck in an infinite loop. I gave up after about 20-30 clicks and just used the task manager to close the app.

I quickly realized my error but the (seemingly) never ending IndexOutOfRangeExceptions seemed to warrant this post. Just in case someone else stumbles upon it as well.

T2 Engraving / Re: Levels of grey
« on: July 07, 2016, 10:13:56 AM »
I hooked up the O'scope to the laser power pins on the board with the laser disconnected just to see what it was putting out and to my surprise it was reading 12v. I was surprised because I assumed the power regulation was being done on the board, not in the laser module itself and the module (according to is supposed to be a 5v laser module.

I'm not so much worried about the voltage as not seeing a PWM signal on the power lines to the laser module. I haven't looked to see if pin 11 is modulating but I would assume it is and it is just getting filtered by the capacitor on the board.

I haven't reverse engineered this little board yet so I'm making assumptions at this point.

Speaking of dithering, is there a way to sacrifice time for quality in T2Laser?

T2 Engraving / Re: Levels of grey
« on: July 07, 2016, 07:16:33 AM »
Dithering did seem to work better but it needs some tweaking. I'm only getting a small portion of the image due to the trial version so I can't see too much.

I'll hook up my O'scope to it and see what is going on with the PWM.

T2 Engraving / Re: Levels of grey
« on: July 06, 2016, 08:27:30 PM »
I had a similar issue as well and ended up loading the original firmware back on and am using benbox again. I didn't think to try dithering so I'll give that a try tomorrow. The black and white worked ok but not grey scale.

I tried a test image I received with the benbox software but due to the 1000 line limit I didn't get much of it engraved. I did get enough to see that it was not working right. After looking back at my sample from benbox it seems like that software might be dithering as well.

General Questions / Re: Open Source Driver Board
« on: July 06, 2016, 05:53:38 PM »
I'm not concerned with it failing or how cheaply they are made.

1. because an open source design allows you to make one or have one made in case it is no longer available commercially
2. it allows you to modify the design to make it unique to your needs
3. it allows you to expand the design to make it do other things like...
3.1 support limit switches
3.2 support one or more fans
3.3 expand the number of stepper motors you can drive
3.4 support a emergency stop switch on the machine (not knocking the software option)
4. to provide a place of reference for all the pinouts, connector types and sizes, etc...

I'm sure there are other reasons why but that's all I can think of at the moment.

General Questions / Open Source Driver Board
« on: July 06, 2016, 04:08:36 PM »
Anyone thought about doing an open source driver board for these? I doubt they will but, just in case the boards are discontinued.

We could reverse engineer these, draw up the schematic and layout some PCBs. They would cost more to make than you can buy but it would be a way of getting a board made in case they were discontinued.



General Questions / Re: 12V Fan output on Eleks Maker Controller
« on: July 06, 2016, 03:44:30 PM »
if you are worried about power you could get one of these Dell server power supplies. These can handle around 64 amps at 12 volts. that's more than enough to power the laser engraver and a couple fans.

There is a ton of information on about how to get these up and running. I have several of them and and I even modded one to control the fan speed by inside temp. Otherwise these things are pretty loud.


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