I'm super interested in this! I have more than 1 t560 and am totally up for experimenting. Comparing the ones I have for many years, they behave differently for sure.
Let us know which airport you get!
Cheers
Moderators: piaptk, tragwag, Steve E., Aussie0zborn
I'm super interested in this! I have more than 1 t560 and am totally up for experimenting. Comparing the ones I have for many years, they behave differently for sure.
Hi!
Thank You for your kind words Fer, yes Hacking a Airpot indeed. Some time ago I was hunting around for alternatives to the extraordinarily "Expensive" Push-Pull Dashpot I bought from here :- http://www.springfixlinkages.com/en/catalog/air-cylinders/dashpots/push-pull-dampers/l4570fprado1978 wrote: ↑Sat Sep 05, 2020 2:58 pmYep, I am the guy with the Airpot mounted in a small Hara M180 lathe. I've started worrying about adding a dashpot system when Steven from MyShank asked me if I was using one when I ruined my first diamond stylus after 30 blanks only. After reading some posts about it I found this:
https://www.lathetrolls.com/viewtopic.php?t=6852
So I asked Soulbear and he told me about the only-push Airpot he hacked to get a fully functional push/pull Airpot. And he is such a generous guy! The Bear himself sent me a Airpot and helped me LOTS to figure out how to mount it in a tiny lathe like mine (so thanks again, Soulbear. You are the best!)
Do I need a dashpot/airpot system in such a tiny lathe? I am not sure. Will It harm? I don't think so. The only thing I know for sure is that I've cut like 80 blanks since I have it on my Hara lathe and the cutting stylus is alive and fully functional You can see a small video in my IG account: https://www.instagram.com/p/CCtclqenw2C/?igshid=1gjl9x8b982rv
Hey SoulbearSoulbear wrote: ↑Fri Aug 07, 2020 11:48 amHi Trolls,
Forgive me for “Chipping In” here, and please understand I am not Criticising anyone by any means!! I am not, nor after now waiting for over 4 years for a response from Herr “S” am I ever likely to be, a VR Owner. But this has not stopped me following this thread with Great Interest, sometimes with Amusement, and sometimes with Bafflement!!. It seems to me that VR Owners are “Quite Reluctant” to Change Very Much about the Design of their VR Lathes in case they somehow “Break” what they perceive to be “the Magic Spell” that makes the VR what it is. This behaviour strikes me as somewhat “Odd in the Extreme” and this makes me curious.
Not all designs are “Perfect” from the “Get GO” and they are of their Own Time, and could maybe stand to be sympathetically modernised and improved upon over time??
Take this for a simple example“Writing!!” :-
At first Rocks and Stones were used to scrape marks on trees and cave walls, This progressed to dipping the Pointed Tips of Feathers of some Dead Bird into some blood, and scratching marks on animal skins, then along comes the Egyptians with Papyrus, and the Chinese with paper, then we discovered inks, and metalworking for pen nibs, moved onto desks, with pencils, inkwells, fountain pens, biro’s, felt tips, word processors, computers, the works etc etc. All progression over time?? In this modern world this “Speed of Development” has increased exponentially, not in all areas, but many nonetheless. What formerly took many years to design on a Drawing Board, then to develop Prototypes, then Gear Up for Mass Production, can now be done at home on a PC with a Plastic or Metal Printer by a reasonably Savvy Child, in a FEW HOURS!! I read somewhere that if the Automobile Industry had kept pace with the Electronics/Computer Industry, we would now be able to make a Car Journey the equivalent of to the Moon and Back to Earth, on one Tank of Gas!!
If a design has Obvious Drawbacks or Flaws, then WHY NOT CHANGE IT??
Whilst I can appreciate that there may be very many various “Factors” at Play” as to why this may be so, thereby Validating a VR owners decision not change things because of “Time Constraints, Fear of Destroying the Value of the VR, Fear of Potentially Damaging the VR, Loss of Income/Livelihood” etc etc….! I do not think it conceivable, that this applies in each and every VR Owners case. The VR has been around since 2009-ish, so at a conservative 1 or 2 sales a month, that would mean that would maybe mean there are maybe a couple of hundred VR’s now in use Worldwide??? I have also heard muted the possibility of going the “Air Pot/Damper” Route, this also strikes me as being “Worth a Shot” I know at least one of my Lathtroll Buddies is modifying his VR to “Airpot Damping” as I write, and I will encourage him to Post the results of his endeavours here on the Forum , but out of the many Lathetrolls who own the VR, why not others??? Gravity can sometimes be a bit of a nuisance. Oil is Messy!! Oil (Usually) Flows Downhill, therefore the “VR Dashpot” also therefore needs to be as Close to Vertical as Practicable. Do other Lathetrolls not share my view that this is a “Design Limitation” restricting Optimum Positioning on the VR??? One that would not exist if the “Airpot Alternative” was used instead???
Examples of Modifications Demonstrating such changes are possible :-
My point is this, Why to bother your heads with unnecessary formulae, Temperature Coefficients,, or worry about finding the correct “Weight/Viscosity” of Oil??
Simply Modify the VR And at a Cost of $1 per 1000 Spring/Units, Choose maybe a few "Different Springs" to Try Out, Fit an “Airpot” and Adjust 1 Screw to tune the System!!! And Let us know the results
Regards Soulbear
couldn't you just make it rise on a cam, so it only touches when lifting and not touching the rest of the time?
You can take a look of this Presto 75A: https://drive.google.com/drive/folders/1114kxllyPk7WETrqsAA7vksJkEdBrnO1Naboo wrote: ↑Tue Aug 17, 2021 7:11 pmA bit late to the party here.... but I'm currently building an oil/spring dashpot, and working on a suspension design.
But am interested to know.. when pulling the head lever down, does the lever just add a small amount of weight causing the head to drop ?
or is there some sort of mechanism going on ? like a lobe hidden inside that controls the drop ?
Hoping to make something similar, or improve on it
Cheers