tag:blogger.com,1999:blog-2026462173127234532.post6021494120649047007..comments2024-03-13T05:24:54.761-05:00Comments on DIY Laser: You say Z but I say UTim Wehrhttp://www.blogger.com/profile/05579550070576755514noreply@blogger.comBlogger12125tag:blogger.com,1999:blog-2026462173127234532.post-12744841176172929062012-04-10T02:47:25.098-05:002012-04-10T02:47:25.098-05:00think of the checkmark om the manufacturer-setting...think of the checkmark om the manufacturer-settings-page (the one you open with PH123).<br />IO - "If blowing" needs to be checked for this.<br /><br />KeesTechgraphixhttps://www.blogger.com/profile/00792405917067389354noreply@blogger.comtag:blogger.com,1999:blog-2026462173127234532.post-19014195380924913582012-04-09T17:52:21.801-05:002012-04-09T17:52:21.801-05:00Great! I may give it a try.Great! I may give it a try.Tim Wehrhttps://www.blogger.com/profile/05579550070576755514noreply@blogger.comtag:blogger.com,1999:blog-2026462173127234532.post-6284569475271811132012-04-09T17:37:19.746-05:002012-04-09T17:37:19.746-05:00Tested it: It works fine! With this difference: th...Tested it: It works fine! With this difference: the output "Blow" is set to zero during the job, so i didn't need to invert it. Just skipped the transistor and resistors. (or i could have switched the U and Z plug on the controller)<br />I think it's called "air-assist" on the older Lightobject-controllers (just check your manual)<br />So i think it will work for you too!<br />I haven't found such air-asist-output on the new AWC608, but maybe one of the outputs is programmable to get that function.<br />KeesTechgraphixhttps://www.blogger.com/profile/00792405917067389354noreply@blogger.comtag:blogger.com,1999:blog-2026462173127234532.post-83445754842465191192012-04-08T16:12:38.614-05:002012-04-08T16:12:38.614-05:00I have no idea how any DSP other than Light Object...I have no idea how any DSP other than Light Object works. Let us know if this circuit works for you.Tim Wehrhttps://www.blogger.com/profile/05579550070576755514noreply@blogger.comtag:blogger.com,1999:blog-2026462173127234532.post-42028742324689535442012-04-08T12:46:43.505-05:002012-04-08T12:46:43.505-05:00I think of combining the two outputs (Z and U)
Wit...I think of combining the two outputs (Z and U)<br />With a switch which is normaly set to Z-control but during a job (where Z has no functionality, other than stay at the same level) i can switch to U-control..<br />I think of an automated electronic solution, for instance with the blow-output..<br />So i can use the auto-focus or better level my table manual and heve the focussing don with z-reset, start the job and it automatically will follow the U-controll.. After the job it will return to Z-controll.<br />For instance with a 74HCT257 quad 2 input tri-state multiplexer.like this schematic:<br />http://members.ziggo.nl/techgraphix/Plaatjes/multiplexer.jpg<br />An idea?<br />I haven't tested it yet in the wild, but i think it will work like this.<br />(btw i don't have a lightobject controller but the other similar one.. decided that because of the import from USA is a tragedy, where China import is fast and flawless. It saved me hundreds of euro's)<br /><br />KeesTechgraphixhttps://www.blogger.com/profile/00792405917067389354noreply@blogger.comtag:blogger.com,1999:blog-2026462173127234532.post-36081104390817129982012-04-05T11:31:01.186-05:002012-04-05T11:31:01.186-05:00My focus gauge is nothing more than a simple piece...My focus gauge is nothing more than a simple piece of 3mm plywood with a slot cut in it at a specific distance from the bottom edge. It slips over the laser head carriage. I then raise the work table until the material to be lazed just touches the bottom of the gauge.<br /><br />If you are having issues regarding a perpendicular cut, there are two main factors. <br />1. Lasers always cut a cone-shaped kerf. The longer the focus length of the lens, the narrower the cone-shape.<br />2. The angle of the final mirror to the preceding mirror. If the final mirror housing is rotated slightly (not perpendicular to the incoming beam), then the beam coming out of the lens will be angled (most likely forward or backward) and will significantly increase the angle of your cut.<br /><br />Maybe I'll do post on the topic. Thanks for the idea.<br /><br />Good luck!Tim Wehrhttps://www.blogger.com/profile/05579550070576755514noreply@blogger.comtag:blogger.com,1999:blog-2026462173127234532.post-57965862207748598542012-04-05T10:33:17.623-05:002012-04-05T10:33:17.623-05:00Hi Tim,
Great blog! Thanks for sharing.
Could ...Hi Tim,<br /><br />Great blog! Thanks for sharing. <br /><br />Could you talk a bit about what the focus gauge is and what is does? I just got my laser and the cuts aren't particularly "straight down" the material. I understand that, to some extent, this is inherent in lasers, but I'm hoping to reduce it as much as possible. I'd also love to hear any other suggestions you have on combatting this problem.Benhttps://www.blogger.com/profile/17776825344118411095noreply@blogger.comtag:blogger.com,1999:blog-2026462173127234532.post-68275168118407497182011-11-16T20:13:53.805-06:002011-11-16T20:13:53.805-06:00Thanx for the info Tim. I recently received a mach...Thanx for the info Tim. I recently received a machine and contacted the supplier about the problem with not being able to lower the table. It would go up but not down. What you have explained makes perfect sense. I do have the autofocus on my machine which is nice, but I think I would prefer to have control over my Z axis. I will have to check and make sure the U channel is on my DSP board and then maybe I will give it a try. Thanx again.TimJanzerhttps://www.blogger.com/profile/06408856029306225467noreply@blogger.comtag:blogger.com,1999:blog-2026462173127234532.post-53418790050382064752011-10-27T21:06:24.681-05:002011-10-27T21:06:24.681-05:00I am still a version or two back, but ahead of whe...I am still a version or two back, but ahead of where you are. I m thinking about the 2012, but honestly, I have most everything working well now, and I am really liking my alternate method of z control. I'll probably stay with what I have for a while.Tim Wehrhttps://www.blogger.com/profile/05579550070576755514noreply@blogger.comtag:blogger.com,1999:blog-2026462173127234532.post-27584692121498953262011-10-27T18:01:33.644-05:002011-10-27T18:01:33.644-05:00I have ordered a new 2012 board from Marco which s...I have ordered a new 2012 board from Marco which should turn up in a week or 2. My old board just won't do vectors along the proper path any more. I played with all the settings I could think of to no avail. It's become useless. Funny thing is I can still engrave with it though but the DSP might use a different engine for that.<br />I will send it back for the guys in China to test. I have never had the air assist working any way so that is one problem I hope they have fixed in the new version.<br />Richard.MonoNeuronhttps://www.blogger.com/profile/09572985257020349901noreply@blogger.comtag:blogger.com,1999:blog-2026462173127234532.post-90055755810933170112011-10-17T09:13:16.488-05:002011-10-17T09:13:16.488-05:00You will likely need to upgrade your board for the...You will likely need to upgrade your board for the missing parts. Get your hands on the chips and the instructions that I wrote. If you can't find my instructions, let me know. I'll try to locate them for you.Tim Wehrhttps://www.blogger.com/profile/05579550070576755514noreply@blogger.comtag:blogger.com,1999:blog-2026462173127234532.post-69772070412953880682011-10-17T08:44:28.270-05:002011-10-17T08:44:28.270-05:00Thanks for the heads up on this one Tim. The Z ax...Thanks for the heads up on this one Tim. The Z axis implementation has always been a real PITA for me having to change the homing to positive or negative then do a reset to adjust the table height. <br /><br /> If the U axis doesn't do this then this will be a godsend for me. I have asked Marco to have this feature user disabled but I think my series of board doesn't do this. I have the blue board with the extra chips missing.... which makes me think I might not even have the extra axis chips for the U axis.<br /><br />I will check it out on Wed when I have some time.<br />thanks again.<br />Rich.MonoNeuronhttps://www.blogger.com/profile/09572985257020349901noreply@blogger.com