Great build! I agree with the rest of the guys, the foot pedal I think is best. All I have comes nectar to my engraver that I made is s a 120v husky compressor and my foredom's foot pedal controlling speed. I'm going to make another handpiece on my lathe, smaller than the one I use now.
Joaquin Ryder esta pieza funciona con aire fluido ??? es posible que me ayudes a construir esta pieza de mano agradecería mucho tu ayuda don Joaquín, usted habla español y quizás pueda entender mejor como llegar a este punto , ya que tengo un amigo que tiene un torno y quizás pueda hacerla para mi a un bajo costo, muchas gracias, quedo atento a su respuesta
I'm sure you figured out by now ( I just saw this video today & it's 5 yrs old) that you were prematurely killing your air compressor. Reset your shit off switch on the compressor back to 120psi. This will inside that 3times more compressed air is stored in the holding tank. The last regulator knob that's at the discharge side to your hand piece set. That's what you regulate down to 4 barr or whatever pressure you desire. Your handpiece will run for a very long time on that tank full of air and only turn back on when it's reached your predetermined low setting if you understand what I'm saying. Good luck
Congratulations. If you can, have the cap threaded to the graver body. Turning it in and out also affects speed. Fit an 'O' ring inside the cap. You will lose a lot of air without the seal. The great secret of this design is that the rear surface of the piston must be twice the front surface. IE: rear surface less hole is twice front surface, less extension. BTDT Use a foot control. It is so much easier. Enjoy.
no, the cap does not have anything to do with speed. its the adjustment ring in the front that does that. fitting a o_ring on the cap, yes that would work nice. rear surface is 70 front 50 i have calculated it. doesnt need to be twice the size, just smaler than rear. thanks for watching, enjoy
Hi there buddy, Ive been thinking about making one of these springless airgravers and been doing a bit of research...i have a blueprint without measurements and i have two sets with slightly different meassurements, i wanted to ask you if youd be willing to share your blueprint or measurements and diamiters with me?
That was what I was trying to figure out was how the design of the piston was to utilize straight air and where to place the inlet for the air on the hand piece shaft. I will be making one of these soon. You should design a sleave to fit over the handle that you can control with your palm to cover the hole up on the end that would control the air like a foot pedal does.
Приветствую уважаемый! Отличная работа. Хорошая идея с выпускными отверстиями для пальца! Если еще сделаешь канавку на цилиндре для стопорного винта рукоятки, то будет совсем превосходно!!! РЕСПЕКТ! ;-)
Hi Nejc Just been watching your series of videos on making a homemade graving machine & here in ep 7 I see that you have this "springless" graver, which one of the two that you have designed is in your opinion the best ? Also as I'm not able to find any dates of when the vids were made, I'm not sure as to wether or not you are still using your fridge/AC compressor setup or if at a later stage you go onto using a different type. Cheers Bob
I use the latest version and i love it. Spring handpiece is history and i will not use it anymore. I like the compressed air system better because its more quiet and the handpice buzz is so relaxing and smooth. The spring makes a lot of noise and vibraion not to mention the dc air pump compressor. It was to loud for my taste. Thanks, enjoy
Hello! Nice to see you are doing all good!!! Could you tell me the reasons of changing your engraving system based on pulsating air system of Sergey Valtman (Сергей Вальтман) to Lindsay system implemented by Rumen Radkow (Румен Радков). Is the second system better, or you were just interested in making and trying smth that you did not try? It would be very nice to hear your opinion on these engraving systems. Thank you!!! PS I did not noticed the link of the graver you put under the video. Timur Ustoev is a master who also add some nice "tuning" to both systems.
Hi Nate,hope all is well.Merry Christmas ,happy new year. I remember seeing the foot-pedal in one of your videos,but for the life of me, I cant find it. It looked really good. I've been trying to find a good ready made pedal for homemade machines so I can point folks in the right direction. My homemade one works well,but there are quite a few guys,who don't have tools,or the practical ability to make one,so it's holding them back. Have you got a brand name or a link where it came from? Cheers Shaun
"testing new handpiece" is the name of the video where I show my new foot pedal. It's at 1 minute. You can see the manufacturer sign also if you pause. If you were thinking about old homemade pedal then it's at one of first videos. Can't miss it. I have a newborn son so I will be out of engraving hobby for a while. I have all my energies focused on my son now so there is almost no time for anything else. I wish you and yours also a Merry Christmas and a Happy New year. Enjoy Shaun
Excellent job. After using it a few days, how much better would you estimate it is than the GRS type you previously made? If you had enough people want to buy them, Would you consider having your machine shop produce more for sale?
I am really happy with it. it's a lot better than before. I don't have time to make these. I just got one made. maybe in the future I can produce more. thanks for watching and thanks for the comment. Enjoy
Good job Nejc, your first prototype and it is working already! I was always wondering, what causes the hammer to go up and down, hammering the end of the graver. you don't even need a spring it turns out. If a "Slinsay Hair graver" from "Stevo" can work all day on a micro oxygen cilinder, how long could you work with a 20 litre O2 cilinder? Would this design still work if you place the air tube on the top of the cap? The pricing of your tool is very affordable to say the least. Destined for success, if you ask me. Well done!
thanks mate. yes no spring needed. i dont have any experience with oxigen but this air tank is plenty for this work. the air tube can be anywhere around because the cilinder/ chamber is simetrical / round. i do get a nice price for this yes. thanks again. enjoy
looks fantastic.. I am still confused by this design. it does not need oscillating air to function, and no spring.. So just forcing air into the chamber drives the piston? i dont understand how that works. do you know?
Yes i know. Look up lindsay handpiece on google pictures. You will find patent pictures. Then click on the link to direct you to the patent page. There is the descripton of working principle. Enjoy
Thanks for quick response always, i will be sending off my designs for a custom handpiece, ill be sure to show you and upload a video of how it works. speaking of, when are you releasing more videos? :)
I don't have anymore videos for now. I am busy being a father to my newborn son. Thanks for your kind words. I hope you make your handpiece and enjoy engraving.
How hard was it to find a machine shop to make it? Did you you already know the owner? You said it cost 110 Euros to make it. Is that labor and materials? I do not know anyone with a machine shop. How hard do you think it would be to walk in off the street and get them to make a working hand piece from the Russian plans?
yes i know the owner of the shop. but you can easy find a tool shop in the area, i think every towh has one. if i can find it here, then it would be no problem finding it in the US. i think.. i could be wrong. i sent the link in the video so you have the drawings, now find a shop, and if it is to expensive just go somewhere else. i am confident you will find someone who can make your machine. thanks for the comment. i appriciate it. Enjoy
Hi Nejc, Just want to ask, I have done the compressor setup but at the end the handpiece I connected it totally won't function properly, it just like push by air and wont repeatly hit, I found out other homemake engraving machine is using a small compressor modify it with suck n push action to make the handpiece work, but if using a oil free compressor like yours then how to make the handpiece work without the suck n push modify on compressor ? or it done by using the handpiece design like yours ?
Yes. Only use this type compressor with this type of handpiece. Or use modifyed compressor with spring handpiece. Look at my oldest videos on how this is done.
I see, bcus early I use oil less air compressor with spring type can't work, so I need double confirm and searching solution. Now make clear a bit, Thank you bro.
