Laser, Nd:YAG - Golden Laser

Contact the machine maintainer or metalshop team leader about using this machine. A formal induction process is currently being developed but we are still happy to make the machine accessible with training on an ad-hoc basis.

DRAFT

Before use, you must ensure that the optics are aligned. See the section below on how to do this.

To align the optics:

1. Make sure the bolts are aligned with the flats on the lens holder.
2. Tighten the bolts in the head, reconnect the air lines and auto-focus sensor.
3. Remove the nozzle from the very tip of the assembly and replace it with the alignment head from the blue box laser kit. Tt looks like a tube with the wall cut away and a pyramid in the bottom.
4. Turn on the red dot function, and tighten down the 4 bolts while trying to align the red dot with the very tip of the pyramid.Iif you get it right it will appear to get much brighter.
5. Remove the alignment head and replace the nozzle confirm the focus depth gauge on the front of the assembly.
6. Rule of thumb is that it should be set to 25mm. It is adjusted by spinning the knurled ring above it.
7. Do a test cut to confirm correct operation.

It's common for debris to accumulate in the optics. To clean the optics:

1. Disconnect the air line.
2. The optics are removed by unscrewing the retaining ring. We don't have a special tool for this but it can be done with a screwdriver.
3. Be exceedingly careful to not handle the optics with bare hands at any point (wear nitrile gloves).
4. Once removed, take the optics into green room as it is a cleaner environment.
5. Disassemble the optics from the holder.
6. Clean the optics with Kim wipes (where do you get these from?). Don't use anything to touch the lens other than the Kim wipes.
7. Reassemble the optics into the holder. To do this it is easier to hold the lens up, bring the holder down over the top and flip the assembly.
8. Confirm the rest of the head is clean and clear of debris etc and place the lens holder back in, keep the 4 bolts loose.
9. Align the optics.

• E goldenlaser@vip.163.com
• E vtoplaser@163.com
• P +86 158 7171 4482 (whatsapp)
• https://www.goldenlaser.cc/

• Yan Liang
• Overseas service manager
• T: +86 27 82944108
• M: +86 15926499449
• E: yanliang_laser@qq.com

• Purchased secondhand from http://theshapemakers.com/shapemakers/
• Main contact is “Ian”
• Ask Josh for contact number

NOTES BEFORE:

1. Do not handle the optics with bare hands at any point. wear nitrile gloves.
2. Do not do any of this in the actual metalshop, go into green room.
3. Do not use anything to touch the lens other than the kim wipes.

1. The laser head is held on by 3 small cup head screws. two are on the circumference near the top of the lens assembly, the last one is on the far side on the top going down vertically. if you undo those and the airline and auto focus cable, you should be able to remove the lens head.
2. Once you have the unit separated you can loosen the 4 bolts that hold in the laser optics holder and remove it.
3. There are 2 optics in this, the lens itself and the protective glass, which has a coating on one side to reflect away YAG reflections.
4. It is common for crap to accumulate in between these.
5. The optics are removed by unscrewing the retaining ring. we do not have a special tool for this, we should make a special tool for this. I have done it with a screwdriver but i was exceedingly, painstakingly careful
6. Using the kim wipes, you can put a few drops of isopropyl on the wipe on a clear and clean working surface. place the optic on this wet patch which will let it 'stick' a little. you can then irrigate the top surface of the optic with isopropyl. place a kim wipe over the top and you can drag the wipe to make a cleaning action. so you're not actually putting pressure on the optic at all, its just the weight and surface tension of the wipe and alcohol. like pulling a sheet across a bed. A few rounds of this cleans most things.
7. Reassemble the optics into the holder. i find its easier to hold the lens up, bring the holder down over the top and flip the assembly.
8. Confirm the rest of the head is clean and clear of debris etc and place the lens holder back in, keep the 4 bolts loose.
9. Make sure the bolts are aligned with the flats on the lens holder.
10. Bolt the head back onto the machine, reconnect the air lines and auto focus sensor.
11. Remove the nozzle from the very tip of the assembly and replace it with the alignment head from the blue box laser kit. it looks like a tube with the wall cut away and a pyramid in the bottom.
12. Turn on the red dot function, and tighten down the 4 bolts while trying to align the red dot with the very tip of the pyramid. if you get it right it will appear to get much brighter.
13. Remove the alignment head and replace the nozzle
14. Confirm the focus depth gauge on the front of the assembly, rule of thumb ( @Ryan M [Secretary/Metalshop] confirm if i'm wrong please) is it should be set to 25mm. you adjust it by spinning the knurled ring above it.
15. done
16. you should be good to go, do a test pierce and a test cut.

PLACEHOLDER A RACI is an important documentation process to let people know what ACTIONS can happen, and who needs to be Responsible, Accountable, Consulted and Informed for each ACTION. Delete this line.

PLACEHOLDER: Risk assessment is important to ensure we are making tools available to members in a responsible fashion. Please make every effort to do a reasonable risk assessment. If there is a safety incident with the tool, please redo a risk assessment and add it to the table.