tag:blogger.com,1999:blog-6100511197805579796.post5828010097163912564..comments2024-02-14T18:43:36.096+01:00Comments on Davide Gironi blog: 38mm x 38mm Laser Engraver build using CD-ROM/Writer on ATmega328pDavide Gironihttp://www.blogger.com/profile/16366076989473118278noreply@blogger.comBlogger148125tag:blogger.com,1999:blog-6100511197805579796.post-41257478091007389682021-07-08T16:46:40.831+02:002021-07-08T16:46:40.831+02:00Hello trialex, I've used the default values fo...Hello trialex, I've used the default values for all except the values you can find in the blog description above. I can not check the motor temperature of this device now, but if i remeber well, mine too was pretty hot, not really, I can keep hands on it. If they are really too hot you have to check the motor voltage, maybe you are running at an higher voltage.Davide Gironihttps://www.blogger.com/profile/16366076989473118278noreply@blogger.comtag:blogger.com,1999:blog-6100511197805579796.post-10691396833585118292021-07-08T14:03:54.252+02:002021-07-08T14:03:54.252+02:00Awesome stuff.
I'm using scavenged CDROM driv...Awesome stuff.<br /><br />I'm using scavenged CDROM drive stepper motors, and got them moving in x and y axes, but they are running really hot. What values did you use for step pulse time, and maximum rate? Any other ideas on how to make them run cooler? Thanks! trialexhttps://www.blogger.com/profile/02461555834700325578noreply@blogger.comtag:blogger.com,1999:blog-6100511197805579796.post-74972911972575191122019-12-16T00:02:40.990+01:002019-12-16T00:02:40.990+01:00Hello Rajesh, a ~100mW laser can not do this.Hello Rajesh, a ~100mW laser can not do this.Davide Gironihttps://www.blogger.com/profile/16366076989473118278noreply@blogger.comtag:blogger.com,1999:blog-6100511197805579796.post-70181776882522574832019-12-15T12:43:49.667+01:002019-12-15T12:43:49.667+01:00dear sir.
Is this burn copper layer on the ...dear sir.<br /> Is this burn copper layer on the pcb???Rajesh Nairhttps://www.blogger.com/profile/17693150350704253612noreply@blogger.comtag:blogger.com,1999:blog-6100511197805579796.post-26162113695262269102019-10-24T19:34:09.718+02:002019-10-24T19:34:09.718+02:00Hello. Advice 1: keep your eyes safe using protect...Hello. Advice 1: keep your eyes safe using protection googles. Advice 2: it's maybe the lens, laser has to be focued on one small point to cut. Try with a black sheet, it maybe helps.Davide Gironihttps://www.blogger.com/profile/16366076989473118278noreply@blogger.comtag:blogger.com,1999:blog-6100511197805579796.post-67350907387845286812019-10-24T08:05:16.242+02:002019-10-24T08:05:16.242+02:00Hi! I've done the same project, laser switch o...Hi! I've done the same project, laser switch on and off correctly but can't cut anything. I have bought a laser pocket, removed the stock diode and i put my dvd laser into this pocket. Have you any advice? <br /><br />Thank you very muchAnonymoushttps://www.blogger.com/profile/08986816100236709401noreply@blogger.comtag:blogger.com,1999:blog-6100511197805579796.post-89850064928252104042019-10-06T20:12:05.822+02:002019-10-06T20:12:05.822+02:00I would try at first with another driver board, an...I would try at first with another driver board, and another motor, just to be sure both the motor and the driver works. Take a look here: https://github.com/gnea/grbl/wiki/Grbl-v1.1-ConfigurationDavide Gironihttps://www.blogger.com/profile/16366076989473118278noreply@blogger.comtag:blogger.com,1999:blog-6100511197805579796.post-44445814200768254422019-10-05T19:18:49.041+02:002019-10-05T19:18:49.041+02:00i'm going insane, laser moves 40mm when I ente...i'm going insane, laser moves 40mm when I enter x steps/mm = 6. Only 6 steps per mm makes x motor run very slow and gets hot very quickly.. I have standard dvd motor and I don't know why you have have over 100 steps/mm... i'm wondering if it's somehow related to microstepping? But when I try to set current limiting via potentiometer on A4988 driver, it has no impact..Gordonhttps://www.blogger.com/profile/13095100096959965567noreply@blogger.comtag:blogger.com,1999:blog-6100511197805579796.post-11893915982904593432019-10-03T17:32:59.219+02:002019-10-03T17:32:59.219+02:00You have to calibrate the stepper. There is a smal...You have to calibrate the stepper. There is a small guide here in this post, or a bigger one online. I think the best place to ask this question is the grbl page.Davide Gironihttps://www.blogger.com/profile/16366076989473118278noreply@blogger.comtag:blogger.com,1999:blog-6100511197805579796.post-64893082472273195682019-10-02T22:06:24.396+02:002019-10-02T22:06:24.396+02:00Hi, maybe you can help me, I'm trying to set s...Hi, maybe you can help me, I'm trying to set step/mm but no matter what value I enter, x & y axis move too far.. (they want to go outside of engraving area). For example, when laser dot is already in the middle of print area (20mm), the preview in laserGRBL shows it's only 3mm or so... I can't regulate it with $100 & $101, if I enter lower values, axis just make more, smaller movements...Gordonhttps://www.blogger.com/profile/13095100096959965567noreply@blogger.comtag:blogger.com,1999:blog-6100511197805579796.post-2278841183786001392019-09-10T19:42:24.493+02:002019-09-10T19:42:24.493+02:00Hello, if you mean thatn you want the complete sch...Hello, if you mean thatn you want the complete schematics. You can find it in the GRBL wiki here: https://github.com/grbl/grbl/wikiDavide Gironihttps://www.blogger.com/profile/16366076989473118278noreply@blogger.comtag:blogger.com,1999:blog-6100511197805579796.post-43917342048027476012019-09-10T05:37:13.187+02:002019-09-10T05:37:13.187+02:00All the circuit All the circuit David addaihttps://www.blogger.com/profile/04675792976581460081noreply@blogger.comtag:blogger.com,1999:blog-6100511197805579796.post-90235751321910431332019-09-10T05:37:11.964+02:002019-09-10T05:37:11.964+02:00This comment has been removed by a blog administrator.David addaihttps://www.blogger.com/profile/04675792976581460081noreply@blogger.comtag:blogger.com,1999:blog-6100511197805579796.post-18635543240945825802019-06-12T10:23:32.631+02:002019-06-12T10:23:32.631+02:00This comment has been removed by a blog administrator.xuanhathudonghttps://www.blogger.com/profile/11059368431327958041noreply@blogger.comtag:blogger.com,1999:blog-6100511197805579796.post-77150881006264939602019-05-26T21:14:35.440+02:002019-05-26T21:14:35.440+02:00This comment has been removed by a blog administrator.organic_alexahttps://www.blogger.com/profile/02120441410750996500noreply@blogger.comtag:blogger.com,1999:blog-6100511197805579796.post-28540038036341956782019-01-30T13:58:44.138+01:002019-01-30T13:58:44.138+01:00This comment has been removed by a blog administrator.Luck Cityhttps://www.blogger.com/profile/11407845258757115722noreply@blogger.comtag:blogger.com,1999:blog-6100511197805579796.post-20043765910977726272019-01-26T11:26:56.889+01:002019-01-26T11:26:56.889+01:00This comment has been removed by the author.Luck Cityhttps://www.blogger.com/profile/11407845258757115722noreply@blogger.comtag:blogger.com,1999:blog-6100511197805579796.post-65916131903706924412018-08-24T15:32:06.836+02:002018-08-24T15:32:06.836+02:00This comment has been removed by a blog administrator.hgchttps://www.blogger.com/profile/06575540690080244293noreply@blogger.comtag:blogger.com,1999:blog-6100511197805579796.post-82350052439311789922018-01-16T19:57:56.437+01:002018-01-16T19:57:56.437+01:00Hello, it may be your laser driver diode that is b...Hello, it may be your laser driver diode that is burn, also check two times before wiring all the things and take a look to the current absorbtion.Davide Gironihttps://www.blogger.com/profile/16366076989473118278noreply@blogger.comtag:blogger.com,1999:blog-6100511197805579796.post-8825936103364974762018-01-15T22:51:14.849+01:002018-01-15T22:51:14.849+01:00Hello mr. Davide I've done the same laser driv...Hello mr. Davide I've done the same laser driver like many tutorials on YouTube but none of them work,,,, what should I do to make it burn?<br />Thanks in advance Anonymoushttps://www.blogger.com/profile/06892499428689351226noreply@blogger.comtag:blogger.com,1999:blog-6100511197805579796.post-61821437218530822562018-01-12T11:07:01.970+01:002018-01-12T11:07:01.970+01:00Hello, did you try to send just a g-code command t...Hello, did you try to send just a g-code command to move the motor, without using the engraving software i mean? Also you could try mounting the same firmware I have here, if your pinout is the same. It also could be a motor driver issue.Davide Gironihttps://www.blogger.com/profile/16366076989473118278noreply@blogger.comtag:blogger.com,1999:blog-6100511197805579796.post-6690709258264131702018-01-11T01:25:03.126+01:002018-01-11T01:25:03.126+01:00Hi, I built same engraver, but with a few modifica...Hi, I built same engraver, but with a few modification, one being that I use GRBL v1.1, and the ther being that I control the engraver through laser GRBL, however after attaching everything according to your schematic, my motors run very slowly in contrast to your video, if you have any suggestions, please reply to this or email me at lilhumza@gmail.comAnonymoushttps://www.blogger.com/profile/10821101979973192681noreply@blogger.comtag:blogger.com,1999:blog-6100511197805579796.post-40060332333702645742017-08-20T10:39:57.184+02:002017-08-20T10:39:57.184+02:00Hello, About the laser, there are a lot of youtube...Hello, About the laser, there are a lot of youtube video that explans how to extract the diode from a DVD-ROM. About the driver, I've publish my LM317 laser driver circuit here: http://davidegironi.blogspot.it/2015/12/a-diy-a4-laser-engraver-made-from.html but you can also find many video or tutorial on that argument.Davide Gironihttps://www.blogger.com/profile/16366076989473118278noreply@blogger.comtag:blogger.com,1999:blog-6100511197805579796.post-5869929142149000542017-08-20T02:25:21.964+02:002017-08-20T02:25:21.964+02:00Did you any tutorial for how to put the laser of t...Did you any tutorial for how to put the laser of the dvd and how to make his driver.dasthttps://www.blogger.com/profile/03726159216308173056noreply@blogger.comtag:blogger.com,1999:blog-6100511197805579796.post-22846056149189049602017-06-08T20:55:27.686+02:002017-06-08T20:55:27.686+02:00Hello, sorry i do not understand. How the laser di...Hello, sorry i do not understand. How the laser did what?Davide Gironihttps://www.blogger.com/profile/16366076989473118278noreply@blogger.com