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Topics - dindunuffin

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1
T2 Engraving / Question on T2 with non-Arduino controller boards
« on: December 08, 2021, 11:16:49 AM »
This question is probably best answered by Zax, but anyone that knows the answer will be great.

I just purchased a new TT2.5 laser kit from TwoTrees.         https://twotrees3d.com/product/laser-wood-engraver/
Got a $94 dollar deal so why not upgrade my old stuttering A5, am I right?
This came with a board that doesn't use a Arduino Nano like my last board, it says its an MKS LKS board.  I assume all the "brains" are built into it and it claims to work with GRBL and LightBurn software.

I only have the one Nano based board which is several years old and I'm not familar with the newer boards. I haven't tinkered with it in a long time, I just use it and it works.
If it will allow me to overwrite the GRBL version, would you guys upload the T2 version of GRBL as well? Or just go with the version they have installed? ie leave well enough alone.
I'm apprehensive to start overwriting the GRBL that came with it without sufficient knowledge of what I'm doing.  If left to my own devices I can screw up anything.
I haven't tested it yet, haven't even put it together as it just arrived.  I'm assuming T2 will run just fine, I thought I'd just ask before I get there.

2
Trouble Shooting / motor stuttering and seizing
« on: November 30, 2021, 06:06:57 AM »
Hello....
its been awhile since I dropped in here, looks like I can say the same for others too.

Anyway, just in case anyone is still monitoring, I have a stuttering motors question.
I tripped over my usb cable, darn near ripped it out, but it kept working yesterday.  Today, its stuttering bad in certain places and sometimes just seizes and stutters.  From what I've read it would appear  this is probably a board problem.  Can you actually damage the motors themselves?  I have moved the gantry some while everything was plugged in, I also know that is a no-no too.

Anyway, its an old small Eleksmaker so I'm sure I'll have to get a new model driver board, any suggestions?  cheap, inexpensive, low-cost, good enough?

btw, I ordered a new Two Tree TT-5.5 for Cyber-Monday to replace it, but I'd like to keep this one running too.

3
I saw this on Gearbox, curious if anyone else has information regarding it or tried one.  Comes in 7,15, & 20 watt versions.  ???
https://www.gearbest.com/laser-engraving-machine/pp_009895272714.html

I haven't heard of any solid state lasers with that much power, is this possible or is this just over driven lower wattage diodes?

4
Well, here we go again, with my TTL laser upgrade.  After a long discussion regarding the wiring and obtaining the TTL signal, I go to mount the laser and it doesn't fit the mount. I know, I'm going at this assbackwards, I should have checked the fit first.

Anyway, the new laser is larger and the mounting holes are not in the same position on the mount.    Before I go making a new mount,  I thought I'd pass it by you guys. It seems simple hobby grade plywood would be the easiest and least expensive to make a new mount.  I guess if could find some acrylic sheeting, and if could find a fab lab with a large laser to cut it, but that seems like a lot of trouble and expense for a laser mount. My only concern with making it myself is the precise of drilling holes vs. laser cutting holes. 

Would you just make another mount, try to modify the one i have, or do you know a good parts supplier, where I might find one that would fit this laser? When I purchased the laser unit I forgot about the Chinese and their use of standards.

5
General Discussion / Where do you guys get your wires and connectors?
« on: March 30, 2019, 08:24:42 AM »
I'm searching, but not finding exactly what I'm looking for here.  I must not be using the correct terms.

Where do you guys get your wire and connectors for your projects?
In addition, what size wire do you guys use/recommend and how do you identify what size connectors are? There must be a gazillion different connectors, just in the JST white realm.  I have boxes full of connectors and of course not a one matches my laser board connector.

I'm thinking maybe I should just solder the wires on the pins, jury rig it and move on. lol


6
I have an older board on my Elecks A3 laser engraver, its an L5, it has one two pin plug for power, three four pin plugs for stepper motors, and one two pin plug for laser.  I recently purchased a TTL laser from banggood and I'm ready to install it.  From reading the forum, its obvious that I need to run the laser with the provided power supply, my question is in regard to controlling the TTL portion of the laser.  Can I simply connect the laser output from the board to the input on the laser?  I read somewhere that I would need to get the TTL from the D11 pin, where ever that would be located.  OR would it be easier and better to order a newer control board?  Anybody performed the TTL upgrade that would know? I can provide pics if this wasn't clear.

7
T2 Software Updates / Moving T2 to another HDD fresh copy of Windows 10
« on: December 17, 2018, 07:29:10 AM »
I have a failing HDD and will be replacing it with a new HDD, when I do that I will be removing Windows 10 and run Linux only OS on this particular machine (currently dual booting). Can/How do I move T2 to another computer with Windows 10?  As I understand it, the installation is specific to the device since it is a single use license, and in this case I no longer want Windows 10 on this particular computer.  I'm guessing I need to contact Zac, but will post the question here for others that may have or had the same issue.

8
General Discussion / Where is everyone? Did I miss something?
« on: November 06, 2018, 04:33:58 AM »
I have been away for awhile, 3D printing bug bit me, but this place was crazy busy the last time I was here and now its almost dead, where is everyone?  Is there a newer better electronic gizmo that everyone is obsessed with instead of our lasers? Did I miss something?  Have lasers gone the way of the fidget spinner?

9
I've got an older Eleksmaker 2w PWM laser engraver, I want to upgrade it to TTL and saw a Banggood 3.5w TTL on sale for $65. The regular cost for a 2.5w TTL from Eleksmaker is a ~$100.  I've read where many people like the 2-2.5w lasers better than the higher wattage due to focus issues, but seems like a 3.5w for $65 would be a good price for an upgrade. What do you guys think?

10
General Discussion / Suggestions for a laser driver
« on: November 05, 2017, 08:43:23 AM »
I have one of the older laser kits that doesn't have TTL/PWM for greyscale.  As opposed to trying to jury rig the laser and probably killing it in the process, I'm thinking about just replacing it with that new Mana board and a new TTL/PWM laser from banggood.  My question is this; what would you guys suggest I use to power the original laser as a desktop project laser? I don't really have a good idea of what that means, but I'm sure I'll come up with something.  I just want to provide a steady beam, simple on/off, maybe a pot to adjust the power?    I'm not an engineer, so I thought I'd ask you guys for suggestions. Are there any laser drivers out there that would suit my needs?

11
General Discussion / 3d printed digital sundial
« on: May 14, 2017, 10:09:35 AM »
If you haven't seen this, take a look.  One of the coolest things I've seen made from a 3d printer.

http://www.mojoptix.com/2015/10/25/mojoptix-001-digital-sundial/

12
Trouble Shooting / How do I cancel printing.
« on: December 04, 2016, 09:33:10 AM »
I've got an Anet A8 which is based on the Prusa I3 design.  I don't know it the firmware is the same, but I can't find a way to cancel the print if something goes awry.   Does anyone else know?  In the meantime, I'll keep Googling.

13
General Discussion / regarding PWM on laser modules
« on: October 15, 2016, 10:31:40 AM »
I've seen Zax recommend the 2W laser from Banggood several times as being a PWM compatible laser.  I just want to confirm for my clarity before I order one, this laser is good for PWM right out of the box, correct?  No power boards, mods, or anything else needed, correct? I want greyscale, but I'm not as adept with soldering irons and oscilloscopes as some of you guys.  thanks.


14
General Discussion / Differences in filaments and nozzles?
« on: July 24, 2016, 02:55:35 PM »
I was looking at a Geeetech 3D printer over at Banggood, and I see that when you order, you have several filament and nozzle options.  I do not know enough about the differences to choose.  The filaments are 1.75mm & 3mm, and the nozzles were 0.3mm, 0.4mm, & 0.35mm.
Over at Folgertech, the RepRap i3 & 2020 are 1.75mm filament, I didn't see anything on the nozzle size.

Can you guys educate me and make some recommendations?

15
General Discussion / anyone know anything about Prusa printers?
« on: June 26, 2016, 05:41:08 AM »
I found this Prusa 3D printer on Gearbest for the $130,  but it has acrylic frame components, is that OK?  It works fine on the laser etchers, but what about the 3D printers? 

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