The Secret Society of Lathe Trolls

Taiwan

2017 Viryl warmtone full automatic press for sale. We are reorganizing our factory and need the space for something else. Nicely maintained and ready for production, PM for more details/video/photos. + Includes set of 12" moulds, plus optional 7" moulds and Viryl 7" kit. + Upgraded full stainless ma...

Is the stitching happening randomly with a set of stampers that mostly doesn't cause this, or are certain stampers always causing it no matter what you tweak? Stitching is attributed by Mobineko to stamper[/cut] issues ('horns that grab the vinyl (on release)...') Whereas, Mossboss and others link ...

Don't tell Souri, he'll blow his top!

5 seconds is not enough time to properly mould a 12" PVC record either by injection or compression moulding. If you have some working prototype that can mould a large thin flat part with 3D details like this in 5 seconds then forget about vinyl pressing, I know people in automative and optical indus...

Hello llary, Yes i have realised from the start the equipement is not optimal for record pressing and it has been a fight till this point and will continue like that till the finish line too with numerous (major) set backs. Which is one of the reasons i am doing this on a hobby level to reduce risk...

PVC cleaner in my experience is more expensive than just running clear compound through the barrel. Minimizing waste is more of an operational thing than technical - plan your jobs carefully to group similar colors, only purge material if and when absolutely necessary. Work from lighter to darker co...

Hi Jacob, I design and build record presses commercially, I can maybe give you a few pointers to save time. As you probably realized the equipment you have is not really optimal for record pressing and you will have to fight against your equipment for a good end result. It's not impossible but perso...

Your puck is too cold, what PVC supplier are you using? Do you have any idea what the gearbox ratio is on your machine because motor rpm is not a very helpful indicator? We really need to know the actual screw rpm. What happens if you use unprinted white labels? Are the printed labels offset printed...

I'm not familiar with the newbilt software but we run 7" on a rebuilt Finebilt which is basically the same thing mechanically. What are your cooling water and steam temperatures? The Newbilt interface is not so clear, is the "heating" part a dwell time (no water or steam) or is steam still being run...

2) When (and why) is this process required for some stampers? I appreciate any help you can provide. Sanding the label area is done to reduce the contact surface area between mould and stamper so there is less heat transferred to the label. The opposite is true for the back of the groove area which...

stamper sanded well enough under label? We never tried it before, but it worked! Thanks. But I have some questions: 1) What's the best way to do that without screwing up the stamper? 2) When (and why) is this process required for some stampers? I appreciate any help you can provide. It’s not done o...

untitledthe wrote: ↑

Fri Aug 12, 2022 4:32 am

Try for longer time in the oven

That will make the problem worse. Need to throw those baked labels out and start again baking very carefully checking every 15 mins

filiperibeiro wrote: ↑

Thu Aug 18, 2022 10:28 am

still on this subject of labels: has anyone ever encountered the following problem: the glue of the labels smears to the side and the stamper gets a stain like this.

Manual or automatic press? If manual are you leaving hot pucks sitting around before pressing?

It's basically a question of supply vs demand and I don't think Apollo or Covid (or timecode discs) have much to do with it. There has been a massive surge in popularity of vinyl records over the last few years and I think overall this is positive for our business. Who wants to be working in a dying...

Something is messed up with your moulds, cycle or cooling water.

What is the temperature and pressure of your cooling water? Do you have a chiller or just cooling tower?

What is your steam pressure?

What cycle times are you running for heating, dwell and cooling?

Mod alert - I suggest someone edits the title of this thread, as far as I'm aware Viryl is still open for business but this damn near gave me a heart attack

My tail is firmly between my legs because barely 6 or 7 years ago I told someone that designing a new record press was a stupid business idea. A few years later Viryl and Pheenix can't keep up with demand and I designed a press of my own, so what do I know

How have you confirmed it's definitely a mould blockage? Unfortunately if it's some issue with the internal brazing all you can do is try to run a pressure washer backwards through the mould, but you are probably SOL unfortunately. If it's really blocked and you're not sure if it's an internal colla...

Are you 100% sure there is no contamination in the extruder/hopper? If stampers are scrupulously cleaned and you are getting pockmarks on both sides that get worse the more you press it's probably contamination of the extrusion.