How to ground your diode engraver, to limit bugs during engraving, made on twotrees ts2 10w, also works for other diode lasers, approximate setup.
photo 1: a cable connected to the laser chassis
connection to the radiator
the screws being metal they conduct the current, the cables must be in contact with a metal part like steel or aluminum, check with a current tester that the connection is continuous from the beginning to the end.
For those who are not lucky enough to have a refill station nearby, it is possible to plug it into a socket BUT: GET HELP FROM A COMPETENT PERSON
a mistake can kill or set fires!
modern prose has an earth record, ESPECIALLY DO NOT BE MISTAKEN!
Depends greatly on the building code, but generally the use of radiator lines for grounding purposes is discouraged or even prohibited.
The reason being that usually that kind of âgroundâ is actually floating as the original underground supply pipes corrode over time and are replaced with plastic ones.
The water inside the line does not provide good enough connection, no matter what anyone claims.
If one insistis of using radiator line as a ground connection, it has to be measured and proven by a professional that the voltage between the radiator line and neutral, and between the radiator line and safety earth is 0 at all times.
Using the safety ground is the correct way to do it, should the need arise in the first place.
Probably the reason lies in the translator used, but that sentence makes zero sense.
Static electricity buildup can be a problem in some cases, but thereâs IMO far better methods to fight that.
I know better than anyone, itâs not a grounding of the 220v network! The wire would be much too small, laughsand it would not be up to standard.
It is only a way to drain static electricity only.
I hope this forum doesnât end up like 90% of the others, with only jealous criticism and nothing constructive.
The ground (equipotential connection) would be made from the power supply of the motherboard, but as only the cable going from the sector to the transformer is equipped with wire with three conductors, safety is ensured only between the socket and the transformer, past its lowering to the voltage of 24V, nothing is grounded. I repeat it is just to drain the static electricity, resulting from the friction of the Pom wheels on the path, as it is insulating it creates static electricity and constitutes a sort of giant capacitor, and an infiltrated part finished in the USB cable.
To those who know how to readâŚ
I look forward to seeing your ideas on this subject. This is a solution to a problem that is Non observable and that could take lots of time to findâŚafter mechanical and connectivity checks.
Since antiquity, with amber (electrum of the ancients) and hair, we have observed in a simply derisory way, one of the greatest and most complex discoveries of humanity, namely electricity, the first observations were made on static electricity, then much later on electricity. Since then I have reduced the number of interruptions in my engraving by 80%, I only wear cotton clothing, and once I took a slight static discharge, my laser stopped dead, from where this idea germinated.
So I looked at my machine in detail at the construction level, the problem is in the Pom wheels, they generate too much of static electricity.
The conditions for creating a kind of capacitors.
I tested my system with a simple balloon, a small piece of paper, my hair too (!) in my system they were attracted, since I connected the cable, no more worries at this level. I ordered ferrites to make an electromagnetic shield, which I will put on the power cable (new 4A power supply soon, because when I burn at 100%, everything crashes)) and on the USB cable which is already shielded but not sufficiently.
I have 30 years of computer maintenance and I know full well that static electricity and certain unfiltered electromagnetic waves cause bugs and problems in computers. Such as data loss.I just want to be able to complete 100% of my work without interruptions, wasted materials and time. The software has problems too but it is not in my capacity to resolve them, the team of programmers works wonderfully on it. I donât have all the answers or absolute knowledge, but I come from the world of mechanical engineering and microtechnology, so if I can help, itâs with pleasure.
So after some research, I see placement of ferrite along with thickness and EMI/RF frequency ranges are important factors.
I expect to avoid any vulnerability the quality should begin at the wire core, extending to the outer most shield of the entire setup with both outward and inward signal diapation in mind.
Ultimately, should the operator be earthed as assemblers are on computer build lines.
I also read that a lot of common engraving problems match the symptoms of EMI/RF.
Your drop in percentage of interruption is most impressive and the efforts to achieve that have been rewardedâŚthank you for sharing, I will be implementing these strategies.
A ground is for static charges, up but not including a direct lightning hit.
A shield, like shielded USB cables with or without ferrites, is for blocking magnetically induced currents.
I completely agree and here in Denmark it is banned precisely for the reasons you mention. I have worked at a power heat plant for over 20 years and have seen incredible electrolytic (and electrostatic) corrosion, mostly in private house installations.
I live in an apartment building, and in France, grounding, known as equipotential bonding, has been mandatory for many years, because before, people connected the ground to the plumbing without connections in the ground , and there were deaths. If an electrical problem occurred, the electricity (220v here) would spread through the plumbing. Several construction standards and laws require people to ground their sanitary and heating installations (when heating with circulating fluid radiators). With a metal stake driven 1m underground connected with a metal braid and a cable of suitable section.
When Iâm grinding coffee into large brocilicate brewing chambers the fine particles jump around and cling to my hands and cling to the brewing chamber wall.
They seem to travel vertically and horizontally at great speed and over a distance that is not great but further than you would expect.
Its great that laser equipment can be so reasonably priced but budget constraints can mean below state of the art performance, and it is there that curiosity, shared experience and teamwork may resolve many issues.
I played a lot with side band radio and antennaâsâŚyears ago, and was into âbasicâ programming in the 1980âs, data processing and also semiconductor production line work and computer assembly for a short while.
While I am no expert in any of these, the perspectives from observing phenomena and knowing what quality control can be like, starts to form an overview of conversations such as âRandom dotsâ which has been great to follow! This subject of RF/EMI is also very iluminating.
Hello and thank you for the compliment, it is indeed a mix of high-end products and unfortunately low-end products, like the power supplies which stop engraving at 100% etc. Afterwards, the subject must be well understood, especially the difference between putting a mass for static electricity and a system to stop EMI, and making me put the current from the sector to the ground, it looks similar but it has nothing to do with it.
I know that many people still have two-pole electrical outlets, which is prohibited in France. From experience I know that if my machine is properly grounded etc, I do not need to wear an anti-static bracelet.
Iâm just trying to help people enjoy their machine and save time and materials.
For food, unfortunately, we are far from the system used on PC, namely 3-conductor socket and grounding and earthing with in addition the spread spectrum system (PC BIOS) to limit EMI, metal chassis and motherboard ground connected to chassis thanks to the screws of the motherboard do not the passage hole on the pcb is ALWAYS covered with tin to ensure this famous electrical contact. DLC32 and other motherboards do not have anything similar, just a ground (negative pole) on the pcb, etc. for full-fledged computers.
The movement of the rails causes negligible static load (air friction etc).
On the other hand, the Pom wheels, therefore in plastic, due to their rapid movement and especially the fact that they are sandwiched between two metallic rails, forms a primary capacitor (an insulator between two conductors, pnp or npn type).
The ideal would be metal wheels like on some machines, some sculpfun s9 with the industrial rail
, the rest I donât know,although we can see it is improvable!
in the near future maybe I will drill the aluminum rail to put an industrial linear guide rail there, but I will lose some useful surface and should make a turntable for the laser.
Sincerely
GET HELP FROM A COMPETENT PERSON 
