Heh, “certified”.
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There are a few authorized resellers:
https://www.v1engineering.com/license/
I don’t know which store you bought them from.
I will send Simon a test part to verify his dimensions.
Did you try my assembly suggestions?
Yes, I sanded the core and clamp standoffs and tightened a lot harder. It’s better, but not good yet, maybe a little more sanding. I realy don’t want to give more torque. But sanding isn’t very precise.
Maybe let it settle till tomorrow and tighten a few degree more. I’m quite double minded.
My tubes are roughly between 24,85mm and 25,05mm, I would say this is as good as you can expect for a handrail…
Straightness was maybe 1mm of per meter, before I started assembly and finding solutions.
Hey, i just finished printing my parts and started assambling. My is wiggling too but only a bit. All other parts were perfect fitting.
Tightened the bolts very much make it better but endet in a little crack in a clamp. (not much a problem i make a new quickly) but thats not the solution.
i read sanding the clamp. i try that tomorrow.
Which size have you got?
F 25mm
That is not what I asked, that is a possible solution.
It would be best to start your own thread, this could be two different issues. To be certain, please follow the assembly directions directly above this post. If it does not work please start your own thread.
Sanding and extra tightening help pretty well, wiggeling is much less, just a little more.
My bores are so tight, I won’t get your suggestion assembled.
So you have put the clamps on more than twice and still never bothered to try my suggestion?
You know what works better than moving one bearing closer, moving two.
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I couldn’t understand how this suggestion should help, so I tried the other solution first.
According to my understanding, tightening the clamp before mounting will move the horizontal bearing away from the tube, because the wings come closer together and with a fix length of the wing the other end will move away.
Additionaly I had very tight bores, so I wasn’t very confident to bring it together.
Well so, I wanted to try it now, even when I have now much tighter bores due to overtightening.
Anyway, during disassembly I found something else now.
According to the fact that I have now much less wiggleroom due to sanding and overtightening, it helps when I turn the tube. As I had measured, I have 24,85mm to 25,05mm tubes, depending on angle of measurement, they are not perfectly round, but you also can’t expect this. So with turning the tube it will be good, at least I thought, then I moved it over the hole length…
In some spots there is wiggleroom and in some spots it gets harder to move.
Opposite.
Worth 30 seconds of your time to try. You come hear asking for help, the guy that designed it says “hey try this for free takes 30 seconds”.
4 days later, I am still answering your questions, investigating all your dimensional questions (finding no issues)…having you say the parts printer you bought them from is bad, having to have him stop production and print my test parts to verify.
We already told you the two times there were issues previous one was solved by rotating the non-round tube and the other was solved by the method I ask you to try since you said your tubes were round.
I am sorry but until you can try my solution I am out of time to help you. A lot of time has been spent by a lot of people and you still are doing it your way.
Within tolerances, should still work, the wonders of plastic is it can flex.
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I was on vacation for the whole weekend, and just had a few minutes on Sunday evening to try out something. I choose the best option of your suggestions which was “plan B” in my point of view in combination with your advise there should be a shiny surface on the standoffs and tightened more.
Maybe it was more work to move 2 bearings, but I was more confident it will help, and it did.
A turning of the tube before this job wasn’t helpful, I’ve noticed the absolutely resistance free turning of tubes in first assembly try.
And today, as I wanted to give your “plan A” a try, I noticed during disassembly, that turning of tube now has resistance. So it actually helped pretty well, the only remaining problem is now, that the tube roundness seems to be not stable over the length (1200x880mm build up).
I always was sure I will find a solution also by myself, but I also wanted to help other builders with my experiences, as this was a new release and I thought I have found an inconsistency.
I fixed problem now with this: https://www.thingiverse.com/thing:4564508
I wish I would have done this right away, because I already sanded and overtightened the core, so I now have maybe a little to much tension. Never the less, this bracket should work fine. I know at least 3 people inkl. me, where this has helped.
The goal is to make it right for everyone. Since I can not source 25mm rails here I am relying on others to help me step through some troubleshooting. People should not need to get other parts, if something needs to be changed I need to change it. Unfortunately I can not just change it because one person says it need to be changed.
i had the same problem: Primo Core F is wiggling
I also could fix the wiggling with this modified file: https://www.thingiverse.com/thing:4564508
And i also saw more people in german facebook who had the same problem.
Tell everyone with an issue for this to start a new thread. If you all are complaining in a youtuber’s facebook group there is no way for me to know about it.
If there is an issue moving one bearing is not the correct fix.
So far, AntiFetzen, is doing a wonderful job in testing and reporting. Should know what to do in the next day or two.