Got one of these laser engraver and stopped working after watching your video I was able to get it back up. I’m working thank you so much for taking the time to go step-by-step
This is a great review. Your other content is supreme among 3d printing tutorials. Your presentation is clean, to the point, and thorough. Thank you. I appreciate the focus on the setup and use case of this module. Thanks for the links.
Great video. The bracket really confused me at first but this video cleared it up! I was actually shocked at how fast the 10W cuts, was expecting it much much slower.
Since I got my Ender 3 V3 KE, my original Ender 3 with a faulty Micro Swiss NG hot end/extruder has been sitting, unloved. I had the idea to convert it to a laser machine as the extruder does not need to be part of the equation. I saw Ricky Impey had a relevant video and my mind was made up after watching. Creality has you to thank for another $200 ish USD in their pocket. I feel that even with my limited skillset as I am new to the hobby, I am confident I can make this work for me. Keep up the good work, Ricky. You inspire the meek makers to be strong.
Managed to get my 10watt laser. Nice and easy to connect. Need to do a lot more reading on the best software. Fantastic to see at work, though I'll have to remember the safety goggles. Cheers Rick.
After seeing your previous reviews on laser engravers, I wanted to ask you if you would consider reviewing this kit. But before I came around to asking, you already did. Thank you!
I think this idea is awesome. I would love to be able to do this with my bamboo lab. I'm not too sure how it would go though that seems to be different fitting somehow - Also, I wondered about safety considerations and fumes and. I wanted to be able to cut paper. as well as engraving. So what would be the best kind of laser for that
Excellent video! I own an Ender 3 V2 printer and I have the following question regarding the Laser Kit: The original working area of the printer is 220cm x 220cm. With the installation of the Kit, does the working area remain the same? Thank you.
Does not work with Elegoo Neptune 2 and I have tried all the gcode parameters! Bloody annoying because you are not the only person who suggested it was compatible with different brands. Is it possible to make it work? Or do I have to buy a second hand Ender?
The adapter bracket on thingiverse for neptune 2 also works on neptune 3. I am having issues right now with Lightburn and the motors. When I tell it to ‘Home’ the motors shake and then when it stops the motors are still getting a slight oscillation signal. I am gonna be pretty bummed out if it is completely incompatible
I gave up trying to get it to work with my Elegoo neptune 2 and purchased a 2nd hand Creality neo. Works well. I think it is an issue with motor compatibility.
I considered buying the ender 3 just for this laser option. But I'm leaning more towards the elegoo neptune 4 pro. It would be great if this laser could fit that also.
If i understand correctly, this kit runs completely independent of the printer's hot end? I have an old ender 3 with a dead hotend, but the gantry and limit switches work fine. I was going to replace that hotend at some point but now im thinking i could remove the print head and make it a dedicated laser engraver...
Have you tried using the sonic pad with the laser? I have an ender3 s1 pro with a Sonic Pad and a laser and it seems to be possible to do it but I can't find how to connect it to the Sonic Pad.
Can I use my Lazer to make rubber stamps, and how many times do I need the Lazer to go over the Cut? I have a #6W lazer so want to get Good Detail, and need to know which #Software is best for me I'm using and #Ender 3 #Creality Machine
You would be mich happier with a 10w laser over a 5w in my opinion. The more powerful the laser, the more materials you can engrave and the faster you can go.
This is a great video and I have purchased one for my son however he has the Ender 3 V3 SE and isn’t on the comparability list. We’ve found a print to support the bracket installation but Y axis connection is under the machine and I can only see a motor cable and not a limiter cable. Any advice on this installation or videos would be amazing if you could support? Thanks Neil
Where can I get the bracket to fit an artillary sw x1 3d printer. I have an Ender 3. will soon be picking up a used Ender 3 pro. But actually wanted to put the laser on my artillary sw x1
Great video! I am planning to buy this with an enclosure my main issue is that I will operate to cut plywood for my rockets in my flat. Do you have any advice? Thanks!
Are you sure this works on any creality? It says ender variety on the website. I have a cr10 smart pro to convert fir full time use since it's no longer my 3d printer of choice
Hi Ricky. I have a CR-10-V3 and Creality say there module wont work on that printer, but wont actually say why? Any chance you can tell me If It will? Kev
Hi Did you get around to making any brackets just looking to use this laser on my cr10max as we have a old CR10 max and I was thinking of stripping the printer parts off and just leave it as a laser printer
I don't have a solid enclosure for my Ender 3 S1 pro but I have the Creality print tent. Do you know if this would be safe to use? I am worried as it has a metalic looking liner, so I'm concerned about reflections. Any advice would be most appreciated. Thank you for another great video ❤
You certainly shouldn't use one in the Creality tent without safety glasses. You are correct that any reflected light can still cause harm. You could use the Creality tent to contain the smoke though. Personally I would use some sort of extraction too if you can.
My Z axis keep dropping down and jamming, how do i fix it so it doesnt drop down, also it runs in opposite direction away from the limiters and causing carnage, please help!\
To stop the z axis dropping, you may need to hold the mechanism still some how. I small plastic clamp on an x axis lead screw or something under your x axis gantry will do the job. There is no way to do it in settings i'm afraid.
Great video! I am thinking about buying one myself. I am waiting on a new Ender V3 Plus to arrive any day and would like to get a laser module for it. I don't believe it is officially supported when I checked their website. Do you or anyone else have the STL file for the printer I am getting? The only laser module in stock is the 1.6W version for the printers. I wanted to get the 5W as I am just starting out. There is the 5W CR-Laser Falcon engraver on sale for $139 for Black Friday (usually $299) and the module to convert the printer for 5W is on sale for $103 (usually $129). Due to the stock issue, seems logical to spend the extra $20 and get the whole set up offered. Anyone have any input on this? The sales are still going on until the end of the year.
I’ve been trying to find out, but could I use an Ender 5 pro? I have an old one collecting dust because getting good prints on it is horrible, and so I’m trying to get a Bambu. But would like to have a laser without buying a new machine.
Would be interested in a original Microswiss attachment bracket! I had to make mine, but it is a full time unit and I have two printers with microSwiss that could benefit from this
also iv been haveing soo much trouble printing on my loner. it starts fine but then it gets pushed off. iv dun all the paper leveling and even a print but still. any ideals sir???
Awesome video I want one now! Also please do the video of going throw the engraving software (potentially both you mentioned if youre up to it) as it would be extremely helpful!
I have an Elegoo Neptune 2S and wanted to know if the bracket would fit that printer. I've had experience in CNC machining and have been wanting something like this. Great review!
Hi, I don't have access to an Elegoo Neptune 2S but it looks from pictures that the rollers are further apart so I would say that the stock bracket probably won't fit straight on. However, it might not be that difficult to make up a bracket. It only needs to hold the laser module in the right position and prevent wobble in the x direction.
Thanks for this video, was looking to buy the laser Falcon2 but this look's as if it a better way to go. Wanted it for cutting former's in 3mm ply and Balsa for model aircraft and Hovercraft'. Would this be any good for balsa or do you think the wood is to soft? Have looked at the enclosure and with a bit of mod could fit a small fan to get rid of the fumes'. May be you could look at making one for a future video, anyway thank's for what you have shown so far, is the discount code for Amazon UK or the US only?
I haven't tested balsa wood but I would be very surprised if it doesn't cut it. It cuts 3mm plywood easily. The Amazon discount should work in the UK, I have a feeling it ends very soon, the extended it for us but it's due to run out.
Hey Ricky, great content, thank you. I have an issue though: i used the falcon 10w with an elegoo neptune 4 and just hoped, rhat the stepper motors would be the same as the enders. My results are messed up. I cant seem to get x and y both to work. I basically get a line in y wirh some x sqiggles. Do you recon ive got a faulty control unit, or is it the stepper motors ? Cheers for your answer
I purchased one and are quite happy with it on my Ender 3v2. Only worry is the z-axis that keeps winding down in the middle of the engraving. I clamped it fast - but do you have a less clampy solution for my problem? Great and bullshit-free video, btw.
Hmmm, the first two methods that come to mind are a physical restriction to the X axis dropping like a block under it or clamping the X axis lead screw like you are doing. I can't think of any more elegant solutions at the moment 🤔
Great job explaining the installation process. I wonder if Creality will have an infrared module available soon since they seem to be the hottest thing right now. I can’t find any UA-cam videos where someone has substituted an Atomstack, or a Sculpfun ir module with this kit. Have you heard of anyone doing that?
It hooks onto the sleeves that space the X axis carriage from the rollers and clamps onto the X axis bracket back plate. As long as those parts are still there then it should work. Worst case you make need to make a mod to the bracket.
After watching a lot of videos on the subject, it looks like it mainly depends on the colour of the acrylic. White or partly transparent acrylic seems to be next to impossible with a diode based laser unfortunately. A pity because this laser is very friendly priced…
Another great video. You have been so helpful getting me started with 3D. Will the laser work for engraving clear acrylic? Can I use the sonic pad too? I use a Cricut machine to engrave clear acrylic and it takes forever. Wondering about the detail you can get with the laser?
Clear materials don't engrave with a laser without something applied to stop the light and create heat. With glass I use black spray paint but removing this from acrylic would be a lot more difficult. This kit bypasses the printer's control board so you wouldn't use the Sonic Pad for any control.
This accepts the air assist correct? Saw a few videos that show using crealty's air assist but the description on the store doesn't mention if it has the fittings for the air assist
@@RickyImpey You are correct! Ordered the air assist and it comes with the nozzle and cover for 10w (5w you have to 3D print one). Thanks man and keep up the content, you have been single handily the most useful for a new S1 Pro, Sonic Pad, and 10w laser user (i went all in after watching your videos)
Thanks for the video Ricky. I'm curious how safe these lasers are to run at home. I've heard of laser radiation and fire hazards around these engravers. Is it safe to run them without housing and fire protection?
'Safe' is a matter of opinion. There are dangers and you need to be aware of all of the hazards which it seems you are. You should never look at the laser light without protective eyewear and yes, there is a fire risk. You should always be present when laser engraving and have a fire extinguisher nearby. That being said, I have never had a fire and any flame has gone out on it's own after seconds.
Do not look into laser with remaining eye.
Got one of these laser engraver and stopped working after watching your video I was able to get it back up. I’m working thank you so much for taking the time to go step-by-step
This is a great review. Your other content is supreme among 3d printing tutorials. Your presentation is clean, to the point, and thorough. Thank you. I appreciate the focus on the setup and use case of this module. Thanks for the links.
Your a legend. The go to guy for 100% of 3d issues.
Great video. The bracket really confused me at first but this video cleared it up! I was actually shocked at how fast the 10W cuts, was expecting it much much slower.
Ricky great video. Will this work with an Ender 5 S1?
Since I got my Ender 3 V3 KE, my original Ender 3 with a faulty Micro Swiss NG hot end/extruder has been sitting, unloved. I had the idea to convert it to a laser machine as the extruder does not need to be part of the equation. I saw Ricky Impey had a relevant video and my mind was made up after watching. Creality has you to thank for another $200 ish USD in their pocket. I feel that even with my limited skillset as I am new to the hobby, I am confident I can make this work for me. Keep up the good work, Ricky. You inspire the meek makers to be strong.
Same here! lol
how is it now
Wow! I didn't know this was possible! Please, yes make an Artillery Sidewinder X2 bracket!!
Managed to get my 10watt laser. Nice and easy to connect. Need to do a lot more reading on the best software. Fantastic to see at work, though I'll have to remember the safety goggles. Cheers Rick.
Hi! Any bracket for the cr10s pro v2 as mentioned? Thanks!
Is it possible to mount it on an other printer? I need to change steps/mm for the acis.. is this possible?
LOL @ 'turn on your death machine.' Thanks for that little gem in the middle of this very informative and accessible video. Great content, thanks!
🙂
After seeing your previous reviews on laser engravers, I wanted to ask you if you would consider reviewing this kit. But before I came around to asking, you already did. Thank you!
Great timing then!
I think this idea is awesome. I would love to be able to do this with my bamboo lab. I'm not too sure how it would go though that seems to be different fitting somehow - Also, I wondered about safety considerations and fumes and. I wanted to be able to cut paper. as well as engraving. So what would be the best kind of laser for that
Does this module work on curved/cylindrical surfaces?
Can you laser engrave other items or just a flat surface?
How do you set where on the material you make the cut?
Excellent video! I own an Ender 3 V2 printer and I have the following question regarding the Laser Kit: The original working area of the printer is 220cm x 220cm. With the installation of the Kit, does the working area remain the same? Thank you.
I have a reality CRM 4 printer I wanna convert it is it possible to get a special bracket made
Does not work with Elegoo Neptune 2 and I have tried all the gcode parameters! Bloody annoying because you are not the only person who suggested it was compatible with different brands. Is it possible to make it work? Or do I have to buy a second hand Ender?
The adapter bracket on thingiverse for neptune 2 also works on neptune 3. I am having issues right now with Lightburn and the motors. When I tell it to ‘Home’ the motors shake and then when it stops the motors are still getting a slight oscillation signal. I am gonna be pretty bummed out if it is completely incompatible
I gave up trying to get it to work with my Elegoo neptune 2 and purchased a 2nd hand Creality neo. Works well. I think it is an issue with motor compatibility.
Is there a way to add the creality rotary tool so one could engrave glassware / travel mugs, etc?
I considered buying the ender 3 just for this laser option. But I'm leaning more towards the elegoo neptune 4 pro. It would be great if this laser could fit that also.
did you try it?
Any updates?
Hi Ricky what’s the discount Code? For some Reason i can’t get into the Description?
amzn.to/44onK6f
Discount code: 10QCBQO7
Not that I needed one but that's genius, even the original head stays in place! Thank you, I never knew these existed.
It's new but there's not been much exposure yet. I think it's really clever.
Please make a video on use of LightBurn. Thanks in advance.
Thank you for the video. WIll it work on tumblers??
Do You know if the láser works with Ender 3 v3 SE ?
Because I do not find the límit switches
Can I change the laser type later? for example for a 20W laser
Great video! I was wondering if you ever designed a bracket mount for the Sidewinder x1. It would be greatly appreciated!
It is working with cr-10 se ?
If i understand correctly, this kit runs completely independent of the printer's hot end? I have an old ender 3 with a dead hotend, but the gantry and limit switches work fine. I was going to replace that hotend at some point but now im thinking i could remove the print head and make it a dedicated laser engraver...
That's correct, sounds like a great use for an old printer👍
Have you tried using the sonic pad with the laser? I have an ender3 s1 pro with a Sonic Pad and a laser and it seems to be possible to do it but I can't find how to connect it to the Sonic Pad.
What is the problem with the smoke?
Interested in a bracket for the Sidewinder X2 and a review if you get it working! Thanks
Would this work on much larger stepper motors ?
The nifty little gage is great for basswood, but what about acrylic 6mm?
Hi,
Great video, any chance you still have the original files that came on the sd card?
Thanks!
Hi, it's very likely that I do. Drop me an email to the address in the 'about' section 👍
Perfect thank you!@@RickyImpey
Can I use my Lazer to make rubber stamps, and how many times do I need the Lazer to go over the Cut?
I have a #6W lazer so want to get Good Detail, and need to know which #Software is best for me
I'm using and #Ender 3 #Creality Machine
Do you know which laser would be best? 5w or 10w. I would be looking at only engraving in wood and maybe tile/metal. Cutting would not be done.
You would be mich happier with a 10w laser over a 5w in my opinion. The more powerful the laser, the more materials you can engrave and the faster you can go.
This is a great video and I have purchased one for my son however he has the Ender 3 V3 SE and isn’t on the comparability list. We’ve found a print to support the bracket installation but Y axis connection is under the machine and I can only see a motor cable and not a limiter cable. Any advice on this installation or videos would be amazing if you could support? Thanks Neil
Can you attach this to a noncreality brand printer?
I have a any cube neo printer. Do you have any plans to convert it to laser engraver.
Can you engrave tumblers?
Very professional and informative review. Could someone kindly confirm it can be used with the CR 10 Smart Pro?
Ditto! I have the smart pro and want to add engraving
Did you guys figure out if it is compatible?
@@littlestar0072 Their website chat makes it seem like there’s not an option to add it on the smart pro
will this kit fit a creator pro 3d printer
Where can I get the bracket to fit an artillary sw x1 3d printer. I have an Ender 3. will soon be picking up a used Ender 3 pro. But actually wanted to put the laser on my artillary sw x1
I'm trying to 10MPYLSG code and it isn't working?
Great video! I am planning to buy this with an enclosure my main issue is that I will operate to cut plywood for my rockets in my flat. Do you have any advice? Thanks!
where did you find the box for the smoke?
Does this work for the CR20?
Would it fit Creality K1 / K1 Max?
Does it fit into bambu lab a1 mini???
Do you know if this works with a Sovol SV01 Pro?
Are you sure this works on any creality? It says ender variety on the website. I have a cr10 smart pro to convert fir full time use since it's no longer my 3d printer of choice
hi .. is it work for acrylic also
Does this work with a sonic pad? Or do you not even need any creality software for this to work?
Can it engrave on Aluminium?
when i start running the laser the Z axis drops down, how can i get this to stay in a fixed position during laser operations?
did you ever make a bracket for the s1 pro i have the laser on order and wondering what you did for your s1 pro
can i use lightburn without the control box kit?
Hi Ricky. I have a CR-10-V3 and Creality say there module wont work on that printer, but wont actually say why? Any chance you can tell me If It will? Kev
Can u make a bracket for the original elegoo neptune 2
Will it work on the model Ender 3 V 3 SE?
Hey do you happen to have an stl for a cr 10 smart pro bracket?
What is the biggest difference if I decide to get the 5 watt laser engraver instead?
Engraving will take longer and you won't be able to cut through some materials.
Hi
Did you get around to making any brackets just looking to use this laser on my cr10max as we have a old CR10 max and I was thinking of stripping the printer parts off and just leave it as a laser printer
I don't have a solid enclosure for my Ender 3 S1 pro but I have the Creality print tent. Do you know if this would be safe to use? I am worried as it has a metalic looking liner, so I'm concerned about reflections. Any advice would be most appreciated. Thank you for another great video ❤
You certainly shouldn't use one in the Creality tent without safety glasses. You are correct that any reflected light can still cause harm. You could use the Creality tent to contain the smoke though. Personally I would use some sort of extraction too if you can.
@RickyImpey thank you
My Z axis keep dropping down and jamming, how do i fix it so it doesnt drop down, also it runs in opposite direction away from the limiters and causing carnage, please help!\
To stop the z axis dropping, you may need to hold the mechanism still some how. I small plastic clamp on an x axis lead screw or something under your x axis gantry will do the job. There is no way to do it in settings i'm afraid.
Great review! Thank you very much for all links.
Hi! Is the laser module compatible with the Ender-5? With K1C? with other models with a stable frame?
Great video! I am thinking about buying one myself. I am waiting on a new Ender V3 Plus to arrive any day and would like to get a laser module for it. I don't believe it is officially supported when I checked their website. Do you or anyone else have the STL file for the printer I am getting?
The only laser module in stock is the 1.6W version for the printers. I wanted to get the 5W as I am just starting out. There is the 5W CR-Laser Falcon engraver on sale for $139 for Black Friday (usually $299) and the module to convert the printer for 5W is on sale for $103 (usually $129). Due to the stock issue, seems logical to spend the extra $20 and get the whole set up offered. Anyone have any input on this? The sales are still going on until the end of the year.
Are the homecomb dimensions fit the s1 pro? It seems to big?
I’ve been trying to find out, but could I use an Ender 5 pro? I have an old one collecting dust because getting good prints on it is horrible, and so I’m trying to get a Bambu. But would like to have a laser without buying a new machine.
Would be interested in a original Microswiss attachment bracket! I had to make mine, but it is a full time unit and I have two printers with microSwiss that could benefit from this
also iv been haveing soo much trouble printing on my loner. it starts fine but then it gets pushed off. iv dun all the paper leveling and even a print but still. any ideals sir???
Awesome video I want one now! Also please do the video of going throw the engraving software (potentially both you mentioned if youre up to it) as it would be extremely helpful!
Would the promo code work for Canada? or is it already past its use time?
Hi, I have a feeling the US one only works in the USA unfortunately. I was only able to get codes for US and Europe on this one.
I do not find the Conectors off the límit switches
I have an Elegoo Neptune 2S and wanted to know if the bracket would fit that printer. I've had experience in CNC machining and have been wanting something like this. Great review!
Hi, I don't have access to an Elegoo Neptune 2S but it looks from pictures that the rollers are further apart so I would say that the stock bracket probably won't fit straight on. However, it might not be that difficult to make up a bracket. It only needs to hold the laser module in the right position and prevent wobble in the x direction.
Thanks for this video, was looking to buy the laser Falcon2 but this look's as if it a better way to go. Wanted it for cutting former's in 3mm ply and Balsa for model aircraft and Hovercraft'. Would this be any good for balsa or do you think the wood is to soft? Have looked at the enclosure and with a bit of mod could fit a small fan to get rid of the fumes'. May be you could look at making one for a future video, anyway thank's for what you have shown so far, is the discount code for Amazon UK or the US only?
I haven't tested balsa wood but I would be very surprised if it doesn't cut it. It cuts 3mm plywood easily. The Amazon discount should work in the UK, I have a feeling it ends very soon, the extended it for us but it's due to run out.
did you get it
did you do a bracket for the cr10 pro v2 at all?
hi! can laser gbrl software control the laser power?
can we cut carbon fibre with it?
Hey Ricky, great content, thank you. I have an issue though: i used the falcon 10w with an elegoo neptune 4 and just hoped, rhat the stepper motors would be the same as the enders. My results are messed up. I cant seem to get x and y both to work. I basically get a line in y wirh some x sqiggles. Do you recon ive got a faulty control unit, or is it the stepper motors ?
Cheers for your answer
What do you recommend to prevent z axis from being pulled down with the added weight of the laser module?
tighten the rollers on the z axis.
I purchased one and are quite happy with it on my Ender 3v2. Only worry is the z-axis that keeps winding down in the middle of the engraving. I clamped it fast - but do you have a less clampy solution for my problem? Great and bullshit-free video, btw.
Hmmm, the first two methods that come to mind are a physical restriction to the X axis dropping like a block under it or clamping the X axis lead screw like you are doing. I can't think of any more elegant solutions at the moment 🤔
how is it now?
my z axis just slides down to the plate, it wont stay stationary?
Great video! Have the software tutorial yet?
Will this lazer work with the new Ender 3 V3 SE?
What are some of the softwares available to use for laser engraving ?
Been to Amazon and the enclosure box is no longer in stock and no date as when it will be back.
Could use a Bracket if needed for Elegoo Neptune 3 Pro, thank you
Great job explaining the installation process. I wonder if Creality will have an infrared module available soon since they seem to be the hottest thing right now. I can’t find any UA-cam videos where someone has substituted an Atomstack, or a Sculpfun ir module with this kit. Have you heard of anyone doing that?
Nice job on review as usual. Quick question. I have E3V2 with upgraded DD extruder. Will bracket work with that?
It hooks onto the sleeves that space the X axis carriage from the rollers and clamps onto the X axis bracket back plate. As long as those parts are still there then it should work. Worst case you make need to make a mod to the bracket.
Great video. Thanks for the effort! Looking forward to giving the laser attachment a go👍🏼
can i ask, is 10w enough cu cut and engrave a rubber stamp ? Thank you
Yes, depending on the rubber. I haven't tried them all and you need to extract the fumes. Burning rubber is not something you should be breathing in.
Thanks for this great video! You mentioned that this 10w laser can cut acrylic. What would a safe thickness be to be able to cut with this module?
I believe a 10w laser can cut up to 8mm acrylic but it's not something i've tested.
After watching a lot of videos on the subject, it looks like it mainly depends on the colour of the acrylic. White or partly transparent acrylic seems to be next to impossible with a diode based laser unfortunately. A pity because this laser is very friendly priced…
my fill commands don't work right. This is so frustrating.
Another great video. You have been so helpful getting me started with 3D. Will the laser work for engraving clear acrylic? Can I use the sonic pad too? I use a Cricut machine to engrave clear acrylic and it takes forever. Wondering about the detail you can get with the laser?
Clear materials don't engrave with a laser without something applied to stop the light and create heat. With glass I use black spray paint but removing this from acrylic would be a lot more difficult. This kit bypasses the printer's control board so you wouldn't use the Sonic Pad for any control.
This accepts the air assist correct? Saw a few videos that show using crealty's air assist but the description on the store doesn't mention if it has the fittings for the air assist
I believe an air assist kit can be added but it would need to have the fitting to attach over the laser lens.
@@RickyImpey You are correct! Ordered the air assist and it comes with the nozzle and cover for 10w (5w you have to 3D print one). Thanks man and keep up the content, you have been single handily the most useful for a new S1 Pro, Sonic Pad, and 10w laser user (i went all in after watching your videos)
Thanks for the video Ricky. I'm curious how safe these lasers are to run at home. I've heard of laser radiation and fire hazards around these engravers. Is it safe to run them without housing and fire protection?
'Safe' is a matter of opinion. There are dangers and you need to be aware of all of the hazards which it seems you are. You should never look at the laser light without protective eyewear and yes, there is a fire risk. You should always be present when laser engraving and have a fire extinguisher nearby. That being said, I have never had a fire and any flame has gone out on it's own after seconds.