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 Replies: 43 / Views: 12,607 |
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New Member
United States
43 Posts |
Quote:
If this is your position, then I am curious why you started this thread?
Is it certain that the StackShot is not made from Chinese-sourced components? I'd bet the rails, screws, and stepper motor are Chinese-sourced, and it is assembled and tested in the US.
I suspect the reason for the wobble is the simple way the rail is built. Other rails I've used have bearings on both ends of the screw, the motor is mounted separately, and a universal joint is used to connect them, compensating for the small errors that are inherent even in precision assemblies. AK, can you confirm this is how the StackShot is built? The WeMacro rail has a bearing on the end opposite the motor, but it appears the motor is used as the bearing on its end. The coupling is solid, with no apparent flex, so any small misalignment can cause wobbling. For this to work the solid coupling must be perfect.
Edited to add: I viewed the movement at 10x, and it is about 10um, or around 0.5% of the FOV. Enough to see it happen, but not enough to make much difference. That 0.5% FOV would be well within my tolerance levels for what I have been dealing with. Thank you very much for your review on this product. It is most helpful as are most of your posts on here Ray. Edited by jtlee321
10/27/2016 11:03 pm
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Valued Member
United States
408 Posts |
Quote:
Is it certain that the StackShot is not made from Chinese-sourced components? I'd bet the rails, screws, and stepper motor are Chinese-sourced, and it is assembled and tested in the US. That is a great comment. I would like to go more into detail about that. "Made in the USA" labels cannot be falsified in any way. That is one thing, if you put on your products, you are not allowed to screw around with. You will face major penalties from our government if you try. If even one component comes from China or someplace else, you are not allowed to put "Made in the USA" on your products. Some companies try to fool customers by putting "Assembled in the USA" and things of that nature on their products. They would never dare put "Made in the USA" on their products, if that's not the case, because the government fines are staggering if you are found guilty of lying about it. Many years ago, I was in the flooring industry. There was some guy in Texas who tried to bring laminate flooring from China into the country with a "Made in the USA" label printed on the boxes. For each box, not pallet, he was fined $10,000 dollars. It ruined him and deservedly so. Edited by joeysanders627
10/28/2016 03:26 am
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Pillar of the Community
 United States
4594 Posts |
Made in the USA labels are commonly falsified. Small frauds aren't prosecuted, only notable cases. Made in the USA does not require 100% US goods. Rather http://www.esa.doc.gov/sites/defaul...erica_0.pdf): Quote:
The "Made in the U.S.A." label is what most
people think of when considering what is
manufactured in the United States. The Federal
Trade Commission (FTC) has oversight
responsibilities for the label and requires that
"all or virtually all" of a product, including all
significant parts and processing that go into the
product, must be of U.S. origin -----Burton 50+ year / Life / Emeritus ANA member (joined 12/1/1973) Life member: Numismatics International, CONECA Member: TNA, FtWCC, NETCC, EveryCountry (online) coin club Owned by three cats and a wife of 40+ years (joined 1983) Author: 3rd Edition of the Sample Slabs book, https://www.sampleslabs.info/ |
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Pillar of the Community
 United States
4038 Posts |
Do StackShot rails have a "Made in USA" sticker on them? I don't see any reference in any of the web pages to origin. AK, why do you think these are made in USA? Why do you think they are even assembled in the USA? I figure they are, but I don't see any claims to this. Maybe they are assembled in China just like the WeMacro rails?
I was able to find a picture of the StackShot and indeed it appears to be of the same design philosophy as the WeMacro, without bearing on the stepper end. The motor looks to be directly-coupled to the screw shaft.
Contact me for photographic equipment or visit my home page at: http://macrocoins.com |
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Pillar of the Community
 2087 Posts |
Rmpsrmps you have now identified two concerns with the wemacro rail. Side ways movement and a failure of EFSC when using the wemacro soft ware. Those are the substantive issues and where its made is a side line issue, given the faults you have highlighted. SO just ignore my opinions ( based on my bad experiences) of inconsistent manufacture in China and focus on the problems you have found with the rail. As I stated a little earlier... it is really difficult to compare the two systems. I am certainly not going to spend money on a second rail, (particularly noting your concerns)to make a substantive comparison. Edit: I am an industrial organizational psychologist. so I do have to make one observation....You are asking me to confirm where the stack shot is made when it would have been very simple for you to have emailed cognisys directly and asked them directly your self, That you haven't gives a less than complimentary impression of the motivation behind your question. I have just got back from a project in Burgundland and checked my rail ( it was really annoying to disassemble my rig as I now have to re-level it!).... there is no made in america label on it any where. But to settle this issue and get back to looking at the faults you(rmpsrmps) have identified. I emailed cognisys and got an answer almost immediately: Quote:
Thank you for your interest in our products!
The StackShot Rail is machined in Janesville Wisconsin and assembled in Traverse City MI - proudly made here in America! Whats hilarious ( and a sad commentary on American consumers) is that a Kiwi in Austria is proud to buy American products...While you appear to be encouraging people to buy Chinese. Edited by austrokiwi
10/28/2016 3:56 pm
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Pillar of the Community
United States
4038 Posts |
Quote:
That you haven't gives a less than complimentary impression of the motivation behind your question. AK, you have no basis for saying anything of the sort and I take it as a direct insult. I don't own a StackShot, and don't intend to buy one, so I have no justification for emailing them. THEY are not a contributor to this thread, but YOU are and are in fact the OP. You implied that the StackShot was American made, and I simply wanted to know where you got the information. Where the information came from is actually more important to me than the information itself, since then I can potentially verify it myself, unless it was stated on the packaging, etc. Contact me for photographic equipment or visit my home page at: http://macrocoins.com |
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Pillar of the Community
2087 Posts |
Here we go again...... YAWN!
Edited by austrokiwi
10/28/2016 4:09 pm
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Pillar of the Community
United States
4038 Posts |
AK...yep. You just can't keep from insulting me for some reason. You seem to think I have motivations other than what is on the surface of what I say, but in fact I am simply trying to help the community out, sharing expertise and information. I remember you took a break from the forum a while back, accusing me of posting for commercial benefit. In fact I do sell systems to folks on the forum, but I don't make any money from the endeavor, especially when you factor in the time I spend helping folks out. Coin photography is a fun hobby for me, and I enjoy talking about it, experimenting, and trying to push the envelope a little all the time. That's why I went to the trouble of buying a WeMacro rail, since it fits with my "El-Cheapo" nature and philosophy of getting the best performance for the lowest price.
Now, you mention the two issues I've identified with the WeMacro rail: wobble and EFSC. Turns out the EFSC issue only happens when tethered. This is a bit unhappy for me, since I prefer to control the camera from the EOS Utility panel (single shots) or somehow from a software interface (eg Helicon Remote), but the Canon works like other cameras that don't tether well by using the HDMI output for viewing the stack end points. As long as the USB is not connected, the WeMacro fires the shutter even in Live View with EFSC.
The relatively mild wobble was only worth mentioning since it is something I don't see in my go-to rail, and it really doesn't seem to be that much an issue. I certainly would not use it as a reason to avoid buying the rail.
Being a psychologist, you should be in an excellent position to evaluate the expected response from statements you make. Don't you think you should perhaps spend just a little longer doing those evaluations before you post? Wouldn't it be a better experience for all if you did that?
Contact me for photographic equipment or visit my home page at: http://macrocoins.com |
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Pillar of the Community
2087 Posts |
Just found another Alternative to stackshot. I have no idea where it is made but I do know it is made by a photomacrography enthusiast. They have a cheap full kit that can even be operated via Blue tooth( Smart phones). However what caught my eye( its out of reach of my current finances) is the high precision rail it allows for sub micron movements. http://www.mjkzz.com/extreme-macro |
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Pillar of the Community
United States
4038 Posts |
Looks really good! And they offer modularity so you can set up with your own rail or control system. Good catch. It's interesting how these are becoming available now. Must be a big enough market. Note "low cost" and "high resolution don't go together...
Contact me for photographic equipment or visit my home page at: http://macrocoins.com |
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Pillar of the Community
2087 Posts |
I emailed them And they are all Chinese. To be honest I just can't go in that direction I do buy some Chinese made gear but every time I do I feel very guilty. The Chinese do heaps of damage to our hobby and For me, as well as the high risk of manufacturing problems, I avoid Chinese products as much as is possible on the basis if the Chinese start to realize selling fake coins is going to effect other products just maybe they will take another look at the industry. Its probably a false hope but I do feel guilty buying Chinese goods for support of my coin collecting hobby.
I emailed Cognisys again and asked if they would look into a HIgh precision upgrade kit. They are already working on it...but so far have not come up with a satisfactory option. They will produce one but when is an issue. I know of one other manufacturer but I am assuming they are out of nearly every ones league. Alpa( in Switzerland) have produced a custom stacking rail( computer driven). All I know about it is it will carry 25kg and at a guess will probably cost, at the least, above US$1000.00
Edited by austrokiwi
11/02/2016 12:59 am
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Pillar of the Community
United States
4038 Posts |
I'm not so negative about Chinese products as long as the quality is decent. In many areas there is really no choice. Even if the StackShot rail itself is made in the US, it's pretty likely the stepper motor and controller are both outsourced, probably from China.
One thing I don't really like about the mkjzz rails is the rail bearings being non-coplanar with the screw. This is the case for their shorter (cheapest) and longer rails. Only the high precision rail (which is expensive) has the dual-bearing approach with bearings in same plane as the screw. Non-coplanarity may be OK for horizontal setups, but for vertical setups it creates excess torque on the screw and on the bearings, and likely leads to poor performance and/or reliability.
Contact me for photographic equipment or visit my home page at: http://macrocoins.comEdited by rmpsrpms
11/02/2016 10:42 am
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New Member
United States
2 Posts |
I realize this thread is from a few months ago. Any updates? I'm considering the wemacro since it's a lot cheaper than the congisys stackshot.
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New Member
United States
2 Posts |
I bought a 5dIV and an MP-E65mm and I'd like to get into macro photography
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Pillar of the Community
United States
4038 Posts |
I've worked on it a bit but have not yet verified full functionality with HDMI on one monitor and WeMacro on second. I can say it "should" work but can't yet say for sure...Ray
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Posted 10/28/2016 01:57 am
