Hello, I am pleased that you came to this conclusion. What has been happening is that a company develops a product and the chinese make cheap knock-offs. Then, people buy the cheap knock-offs to save some money and many of the cheap knock-offs are not made to the blueprints. Shortcuts are taken and everyone loses except the chinese cloners. If this trend continues, and the companies that devby reifsnyderb - General
Hello, Do you have any plans to test with a J-Head? Best Regards, Brianby reifsnyderb - General
Hello, I have a suspicion that the clone market is badly impacting E3D, as well. A lot of re-sellers are only selling those E3D clones and are usually marketed as "All-metal J-heads" or something similar. Only time will tell. While you bring hot-ends back up, and understandably so, I still feel that the whole cloning issue has badly affected developers. While most of the early RepRap developby reifsnyderb - General
Back to the original issue: Let's say that I was a developer only and not a developer/small manufacturer. Let's say that I were to designed a widget for RepRaps and the widget worked very well. People made many copies and/or many copies were made somehow. This widget really helped and worked great. Then, china takes my widget design, cheapens it, and makes the cheap "clone" available for 2by reifsnyderb - General
Hello, I have no idea how to deal with the china problem. Sadly, that is why I stopped releasing new designs as I refuse to help china. With the chinese apparent subsidization of shipping, almost zero labor costs, along with a lot of other factors, it is clear that the proverbial "deck" is seriously stacked against manufacturers elsewhere. I have seen the same problem with other non RepRap-reby reifsnyderb - General
To me, this statement of yours says it all: "I don't know your whole story, nor do I particularly care to." If you don't care about what is going on, please don't bother replying. This is not about anybody owing me anything nor about holding a design hostage. My gripe is about products being destroyed by chinese "cloners". Quotermlrn I don't know your whole story, nor do I particularly carby reifsnyderb - General
I just thought more about this and will make it simple: Don't expect people to want to develop anything if what they develop is destroyed by china.by reifsnyderb - General
Hello, You are making statements without having any knowledge of what machinery I have, how many hot-ends I can make in a week, how much time it takes per hot-end, etc. You have no idea if I am profitable or not profitable. Yet you make statements that sound like I have no idea what I am doing. I know how long it takes to make a J-head. I know what can be outsourced (to a USA shop), and wherby reifsnyderb - General
Hello, I do not need to "farm out production" as I have this machinery. Yes, this machinery does have a cost and these "mom and pops" have already purchased the machinery as have I. You completely missed my point. I have learned to manufacture. Without learning to manufacture, there is no way I would have possibly been able to make the number of J-Head hot-ends I have made. Regards, Brianby reifsnyderb - General
I hope you are right. Best Regards, Brian QuoteMechaBits Maybe as China starts to up prices, it will fall in your favor, many people are trying to bring manufacturing back onshore, you already have the tools, keep exploring maybe try to disguise solution, maybe throw out a few red herrings for others to imitate.by reifsnyderb - General
Hello, I have noticed that you seem to "cherry pick" which parts of my post to read and to respond to so as to support your argument. I have no doubts that you will not go back to read and try to understand what I am saying. The only "sour grapes" that I have is that people, such as yourself, see no problem with somebody doing free research and development for the benefit of chinese "cloners".by reifsnyderb - General
I am perfectly aware of the open-source ideal. As the author of some open-source software I have given my time and expertise. While it costs me time to write software, it costs me almost nothing to make copies of open-source software to somebody. I tried to explain that copying open-source hardware has a lot of costs. However, some people do not grasp this concept and feel that somebody shoulby reifsnyderb - General
Hello, Pictured above is the J-Head Mk 9 hot-end. This is a proper Bowden J-Head that is capable of printing at speeds in excess of 150 mm/sec. It does not require kapton tape, uses a heater cartridge, uses axial thermistors that will not fall out, has a proper adjustment for the ptfe liner, has superior cooling to previous J-Head designs, has two internal seals to prevent leakage, does notby reifsnyderb - General
Hello, There is no such thing as an "all-metal J-Head". J-Heads are designed with high temperature insulators so as to keep the heat where it is needed. The "all-metal J-heads" are chinese knock-offs and not made to any specification. Real J-Head hot-ends are made in the USA. Best Regards, Brianby reifsnyderb - Mendel90
A genuine J-Head would have not caused you problems. Quoteicefire Well, my e3d v6 is genuine. Bought from an authorized reseller and not off ebay. Back to the subject, my hot end and consequently the extruder do get jammed from time to time. The hot end is properly cooled. Do you think that switching to direct setup would improve this?by reifsnyderb - General
Hello, Did you really have a J-Head from e-bay? Most of these are either knock-offs of the real thing or e3d knock-offs where they steal the name.. Brian Quoteusslindstrom I'm not the source of info here, but my experiences fall inline with what you were describing. MANY iterations of extruder combos on my i3, both bowden and direct feed. I do prefer direct feed myself, due the oozing ofby reifsnyderb - General
You are absolutely correct. A person's time has no value, machine tools are so cheap that they are practically free, utilities have no cost, shipping is free, taxes are nil, etc., etc., etc. Hey, running a business is so cheap that all products should be given away. I can't argue with that at all. Ok. I am done. Quotethe_digital_dentist The problem here is that people are unable to distinby reifsnyderb - General
QuoteSteveRoy Not a close comparison. If someone downloads an illegal copy of a song or movie it's an actual copy of the real thing. Using your example of music/movies it would be like buying a copy of the movie Star Wars and finding it has all Chinese actors and sub-titles. What I find is amazing is people buy what they know is a cheaper clone of properly engineered and tested product that neby reifsnyderb - General
QuoteFrans@France QuoteGovahnator i think the original is way overpriced ( i have the original 1 v5 and 2 v6's as well). I disagree, that money is needed to continue doing business and doing research like Frans@France is correct. If e3d goes under, your only options for new product designs will be to either do it yourself or forget about it. Running a business, innovating, doing research, purby reifsnyderb - General
Buy the clones. The best part of it is that if everyone buys the clones the innovators will leave.by reifsnyderb - General
The "cloners" don't use the blueprints. They make cheap knock-offs, spam the market place with their junk, and profit. Everyone else loses.by reifsnyderb - General
That is not a J-Head. It is an e3d knock-off where they stole the J-Head name. This is a J-head ----> Good luck with the knock-off hot-end. Not all knock-offs work and supporting the "cloners" puts the original developers out of business.by reifsnyderb - General
Hello, There will always be people tinkering. However, with the china factor, turning it into a business is becoming impossible. Open source software, once created, has a "manufacturing" advantage in that copying the software has a negligible price. Open-source hardware requires a lot of capital equipment and labor to copy an open-source design. Because of this, the advantage goes to the areby reifsnyderb - RepRap magazine
Quoterealthor Quotereifsnyderb Very interesting. I am surprised that people still have some interest in light-weight designs. When I produced a 13 gram J-Head hot-end, there wasn't much interest. Speed is still one of the biggest limiting factors for mass adoption of 3D printers and unless we can print a medium size, medium complexity part in a few hours we will remain enthusiasts thinkeringby reifsnyderb - General
Very interesting. I am surprised that people still have some interest in light-weight designs. When I produced a 13 gram J-Head hot-end, there wasn't much interest.by reifsnyderb - General
The J-Head Mk III series had a heat-sink. PEEK is an insulator and a heat-sink was avoided by designing the part so as to avoid heat build-up in the first place. J-Heads from Mk IV through Mk 9 don't use heat-sinks. Quotekarabas Quotereifsnyderb J-Heads don't have heat-sinks. Genuine J-Heads don't need heat-sinks. PEEK part is about it.by reifsnyderb - General
No joke. I am the guy who created the J-Head. Sure! There are a lot of hot-end developers. Developing a hot-end, developing a hot-end that can be mass-produced, and then mass-producing the hot-end are three separate challenges. My full argument is here---> QuoteTomsand Quotereifsnyderb Keep buying the e3d knock-offs. This will drive e3d out of business and be the end of any more serby reifsnyderb - General
Well, J-Heads don't need anti sieze compounds.by reifsnyderb - General
Hello, I am sure I could. However, setting up the machines to make one would make for a very expensive part. I'd have to make a quantity of them. At the moment, I am still making and selling J-Heads so the machines are setup for J-head production. Best Regards, Brian Quotedave3d Brian, Can you machine a Diamond Hotend? Or even better a variation using standard J-head parts? If so I woulby reifsnyderb - General