Hello, I want to build an electrostatic coating device, but I will rely on a high-voltage transformer for the TV. Do I have to make a rectifier circuit or diode unification, or is the transformer sufficient?
Another well-crafted project, with clear concise instructions. I was wondering, by putting a small funnel on the gun say one used in filing small perfume bottles would that make it so most of the powder hit the object being coated? instead of a lot of powder being wasted?
I made the gun and it works, thank you. I am having trouble applying 2nd coats, the powder just falls off when it hits the piece, I tried reducing the voltage to 3 volts which is the minimum for the voltage generator, have you had this same issue? Thanks
The powder won't stick for a second coat with the electrical charge because there is no exposed metal. You need to use a technique called Hot Flocking. You simply pull it out of the oven when the piece is still hot and apply the powder without the charge. The heat in the work piece will cause it to stick. You need to then place it back in the oven for another 10mins to let the new coat melt. I show the process here at the end of the video: czcams.com/video/EoX6G9tioN4/video.html
Cannot be better explanations. If anyone has questions -just look video twice, triple and so on, everything is covered. Also I do my first powder gun now, only problem here are no same size pipes-tubes :) more glue, less thinking
I guess you can. The buck converter holds a constant current and current is the most important factor to limit. I haven't tried a 2a power plug pack on its own.
@@tinkersmith4615 ok will try 2.5a like you do on first video. why in the first video do you touch the pistol to the cathode? I was looking to see if there would be ark kkk. sorry for so many questions and thanks again
I have tested between 1.5a-2.5a and it works at each of those. It doesn't work at 1a. I thought you were asking if you had to use a buck converter. I find it a necessary component as it stops the high voltage module from shorting out.
Hello. Perhaps this video is too old for you to look at comments but I'll try anyhow. Id like to make a powder coat system but am unsure about the design. I was a lab manager for a company that produced industrial equipment for handling powders. So I have an above average perception of whats going on. Additionally, I have painted cars for over 40 years and my garage is set up like a machine shop (milling machine, lathe, etc). So although it will be my first attempt, my goal (as in all my obsessions after retirement) is to make the best one with the least money. I really like your design. It seems, though, that the incoming air tube that goes into the bottom bottle could interfere with the powder coming out-not much, but still. Have you tried putting the incoming air in from the bottom of the bottle whereby fluidizing the powder? Even having 2 incoming air lines (one for fluidizing and one for conveying) seems an improvement. I know that a second or third hole would be less convenience, though. Another thing I've noticed is how crappy cheap sandblasters are. A volumetric feeder could help both tools. Imagine, for example, the auger in a meat grinder that pushes the meat towards the blade. If at the bottom of a small hopper were a level tube with an auger in it (screw conveyer) the flow of sand or powder could be greatly controlled. A cheap auger is an antique drill bit for wood and cheap pipe from anything along with a controllable gear motor powered like a cordless drill would be a huge benefit, especially for a sandblast. The auger could turn at any speed you want. There are thousands of design of those screws. They are for every type of material imaginable. There are other material handling devices that could be incorporated yet I see NONE in any of the fields. Any comment would be appreciated.
This design was one I came up from over the counter supplies and spares. I have a 3D printer now so more things are possible. I have been super happy with the performance of this gun so the needs I have and so haven't thought much more about improving it. Would be keen to hear what you come up with.
@@tinkersmith4615 Thanks for the reply. 3D printer is on my list. I needed on last week. One thing those guys taught me was they use acetone to clean the bed. I put some in a jar with pvc. Over night it turned into a paint that you can patch stuff with. I can fix all kinds of stuff with it. I think it could be a body filler. I've been watching tons of videos today. I find it funny how so many people have to shake the box to increase powder flow after paying so much money for the best ones. I had to deal with a different powder every day and had to make them all flow for test results. So I feel their pain. I'm leaning now on focusing on a fluidized hopper and getting a chinese imitation of a GEMA for $40. Another part of me wants to build a gun with an above hopper made out of a plastic funnel with perhaps a rotary valve or even a tiny bin actuator. I think the answer to the best one would vibrates the end of the gun (like an orbital sander) to allow increase flow, increase coverage area, and increase ionization. Could you answer one question for me? Why does no one use an old car coil? I remember some had 40,000 volts. I'll bet I have 5 of that type in a drawer. I have some unique ones too. Is there something I'm missing? can they be used?
@@onenewworldmonkey not sure about the car coil. I haven't had much experience with them. I would just check how much current they draw. The ones I use have very low current so the danger of high voltage appears low.
Have you seen my first video? I link to it in the top right hand corner in the first few seconds of this video. In it I give step by step instructions as to how to wire up the high voltage module. Please come back to me if that video does not answer your questions.
@@tinkersmith4615 Thanks..saved all the pictures with the measurements :) .. the wire you had along side the tube is that for stability of the tube what about using a metal tube?... how did you wire the High Voltage module and DC-DC converter in the box? What do you use as a heat source to set the powder?
I simply wired the high voltage module directly into the DC-to-DC converter terminals the soldered the long wires to the other side of the high voltage modules and applied heat shrink.
Amazing! This is a great tutorial!! true knowledge is one that we can share and in this way we learn more and more!
Nice tutorial...good job bro👍👍
Parabens, muito muito bom seus videos , foi de grande ajuda , agradeço muito mesmo por compartilhar seus conhecimentos , um grande abraço
you made my day. Thank you for this information .
Thanks for the feedback. Enjoy!
Hello, I want to build an electrostatic coating device, but I will rely on a high-voltage transformer for the TV. Do I have to make a rectifier circuit or diode unification, or is the transformer sufficient?
Another well-crafted project, with clear concise instructions. I was wondering, by putting a small funnel on the gun say one used in filing small perfume bottles would that make it so most of the powder hit the object being coated? instead of a lot of powder being wasted?
Thank you. Appreciate the feedback. I don't know. Will have to give it a try.
Have you ever had a go at at making a Triboelectric gun (no external power supply) like the NordicPulver NP-09 which is a 3D printed?
Bravo 👍👏
Many thanks... to think I was going to waste my money on a real el-cheapo one, parts are ordered
I made the gun and it works, thank you. I am having trouble applying 2nd coats, the powder just falls off when it hits the piece, I tried reducing the voltage to 3 volts which is the minimum for the voltage generator, have you had this same issue? Thanks
The powder won't stick for a second coat with the electrical charge because there is no exposed metal. You need to use a technique called Hot Flocking. You simply pull it out of the oven when the piece is still hot and apply the powder without the charge. The heat in the work piece will cause it to stick. You need to then place it back in the oven for another 10mins to let the new coat melt. I show the process here at the end of the video: czcams.com/video/EoX6G9tioN4/video.html
To działa bez generatora napięcia??
not being a pain but where did you find the 25mm electrial 90 ?i can,t find one in this town
It was just in our local hardware mega store (Bunnings) here is Australia.
Cannot be better explanations. If anyone has questions -just look video twice, triple and so on, everything is covered. Also I do my first powder gun now, only problem here are no same size pipes-tubes :) more glue, less thinking
Thanks for the feedback. Have fun.
@@tinkersmith4615 for nbow, I use it more and more, only too small oven is limit :S I am still grateful for this video!
How did you make the electrostatic chamber? Do you have a video?
czcams.com/video/7g_oLDS0Km8/video.htmlsi=fg-iJsTO7OffniPC
the use of the step down, would it be a form of protection? why not use a 4v 2a source directly?
I guess you can. The buck converter holds a constant current and current is the most important factor to limit. I haven't tried a 2a power plug pack on its own.
@@tinkersmith4615 ok will try 2.5a like you do on first video. why in the first video do you touch the pistol to the cathode? I was looking to see if there would be ark kkk. sorry for so many questions and thanks again
I have tested between 1.5a-2.5a and it works at each of those. It doesn't work at 1a. I thought you were asking if you had to use a buck converter. I find it a necessary component as it stops the high voltage module from shorting out.
I earth the gun out on the work piece to ensure that any capacitors inside the high voltage module are discharged.
can i 3d print all the parts instead of using pvc pipe thanks
I don't have any 3D drawing
Hello. Perhaps this video is too old for you to look at comments but I'll try anyhow. Id like to make a powder coat system but am unsure about the design. I was a lab manager for a company that produced industrial equipment for handling powders. So I have an above average perception of whats going on. Additionally, I have painted cars for over 40 years and my garage is set up like a machine shop (milling machine, lathe, etc). So although it will be my first attempt, my goal (as in all my obsessions after retirement) is to make the best one with the least money.
I really like your design. It seems, though, that the incoming air tube that goes into the bottom bottle could interfere with the powder coming out-not much, but still. Have you tried putting the incoming air in from the bottom of the bottle whereby fluidizing the powder? Even having 2 incoming air lines (one for fluidizing and one for conveying) seems an improvement. I know that a second or third hole would be less convenience, though.
Another thing I've noticed is how crappy cheap sandblasters are. A volumetric feeder could help both tools. Imagine, for example, the auger in a meat grinder that pushes the meat towards the blade. If at the bottom of a small hopper were a level tube with an auger in it (screw conveyer) the flow of sand or powder could be greatly controlled. A cheap auger is an antique drill bit for wood and cheap pipe from anything along with a controllable gear motor powered like a cordless drill would be a huge benefit, especially for a sandblast. The auger could turn at any speed you want. There are thousands of design of those screws. They are for every type of material imaginable. There are other material handling devices that could be incorporated yet I see NONE in any of the fields.
Any comment would be appreciated.
This design was one I came up from over the counter supplies and spares. I have a 3D printer now so more things are possible. I have been super happy with the performance of this gun so the needs I have and so haven't thought much more about improving it. Would be keen to hear what you come up with.
@@tinkersmith4615 Thanks for the reply. 3D printer is on my list. I needed on last week. One thing those guys taught me was they use acetone to clean the bed. I put some in a jar with pvc. Over night it turned into a paint that you can patch stuff with. I can fix all kinds of stuff with it. I think it could be a body filler.
I've been watching tons of videos today. I find it funny how so many people have to shake the box to increase powder flow after paying so much money for the best ones. I had to deal with a different powder every day and had to make them all flow for test results. So I feel their pain.
I'm leaning now on focusing on a fluidized hopper and getting a chinese imitation of a GEMA for $40.
Another part of me wants to build a gun with an above hopper made out of a plastic funnel with perhaps a rotary valve or even a tiny bin actuator. I think the answer to the best one would vibrates the end of the gun (like an orbital sander) to allow increase flow, increase coverage area, and increase ionization.
Could you answer one question for me? Why does no one use an old car coil? I remember some had 40,000 volts. I'll bet I have 5 of that type in a drawer. I have some unique ones too. Is there something I'm missing? can they be used?
@@onenewworldmonkey not sure about the car coil. I haven't had much experience with them. I would just check how much current they draw. The ones I use have very low current so the danger of high voltage appears low.
@@tinkersmith4615 I was just told that car ignition coil is of an iron core which cannot handle high frequency.
Hi..Do you have any wiring diagrams and instructions how to build it that people can download? ..nice video
Have you seen my first video? I link to it in the top right hand corner in the first few seconds of this video. In it I give step by step instructions as to how to wire up the high voltage module. Please come back to me if that video does not answer your questions.
Here is the link: czcams.com/video/6dXSpUkiLv8/video.html
@@tinkersmith4615 Thanks..saved all the pictures with the measurements :) .. the wire you had along side the tube is that for stability of the tube what about using a metal tube?...
how did you wire the High Voltage module and DC-DC converter in the box?
What do you use as a heat source to set the powder?
If you are referring to my first video (Generation 1) that was to hold the tube in place. I chose to use a rigid tube in this video (Generation 2).
I simply wired the high voltage module directly into the DC-to-DC converter terminals the soldered the long wires to the other side of the high voltage modules and applied heat shrink.