maybe, not sure what that one is. It is just like this: You take a bunch of oil out of the ground. The ground now has a hole where the oil was. Put plastic in that hole.
Horn, is that with a normal lath? I don't machine these personally but have a shop that machines screws for us that go down to 000-120 with a collet, biggest problem is catching them:D
His competitors can cut down to a 0000 screws need to be cut using a swiss machine. It has a bushing that rolls with the part around the stock. Your cutter sits very close to the bushing so it is like you are cutting on a 1/2" piece of steel. The stock then moves instead of the cutter to maintain this (not always) these things often have 12+ axis of movement, they are crazy. They will often do hand-offs between different chucks so you can machine multiple features at the same time.
Unfortunately most plastic isn't easily recyclable, or in the case of thermoset plastics impossible to recycle (doesn't melt). Even those that do get recycled still get made using 80% virgin (raw) resin as the recycled plastic will degrade after multiple heat cycles (cross-link, or burn).
There are biodegradable plastics. They, unfortunately though, degrade. They can't be stored as easily, need to be kept out of the light and needs to have tighter shelf life controls. They are usually very hygroscopic as well making them more difficult to process. They also don't always break down into the most friendly of things.
All of this aside, If plastic is made from oil in the ground, whats wrong with simply putting the plastic back into the ground?
Yes I would. It would show more respect to the science involved in my opinion to have a name that was less disturbing, at least to me. Is calling it a urine brick proper then, or do you think it was chosen for purpose? I do not know the science behind it, just my interpretation of it.
Nah, there are plenty of swiss-style lathes in the US that can make these parts super fast and are available. They chose a bad source for this. The screw was what was in the title so that is what I focused on. Chances are if they can't source something this simple they have other issues as well.
I am not saying screw-rolling equipment, which us manufactures still use (te-co is one example), granted not for standard fasteners. Those would make screws in the rate of 5 / second or something around there. I am talking about swiss-machining. These pieces of equipment are very common in the US. They would produce a part like this in the range of 5 seconds / screw, not 30 seconds / screw and are generally made for lights-off machining (24 hr production). Screw machines could make these things maybe 500k in a 24 hour period (the ones sold overseas), I would expect a swiss machine to make around 15k in a 24 hour period.
It sounds like the company making these are using standard lathes to reach this level of production or are using the machines only a few hours a day.
I don't blame them for selling the equipment. I blame apple's supplier for going to someone without the proper equipment and then screaming BAD USA PRODUCTION!
If they are rolling the threads / stamping the threads this should take even less time (a second or less each). Many screws that use standard threads with funny shaped heads are still machined as you don't have to reform the head. Rolled threads are stronger than cut threads. Maybe the reason why the screws kept breaking in the complaint videos for their other products are they are cut instead of rolled?
They definitely should have used off the shelf components for this, no doubt about that. All I am saying with this is that a US company should have no issue making the parts in the time they needed, someone just screwed the pooch in sourcing, or had motivation to go somewhere else.
Screw machines generally give a better tolerance as well. The stock is supported against a bushing during the cutting operation. The only reason to sell the machines would be if you no longer had the need for them because you didn't have the work to fill them up. They may be a little harder to program I suppose, but not terrible. Still doesn't explain why the company assembling these things didn't go with a company that had the proper equipment to make the parts.
They are talking months here though, plenty of time to get a project like this going. It just screams bad management, or something else entirely. The 1,000 screws / day was a supplier of apple's supplier. They probably had a shop they normally worked with or something.
If they can only make 1k screws a day I bet they are not cheap screws, I would guess at least $0.5 each. That is $60/hr making 1000 parts in that time. If they had double shifts, multiple machines, etc it would be even more. If they are running this lights out and only getting 1000 screws per day they are doing something horribly wrong.
There is something wrong here, much more than just that. A screw machine should be able to spit a screw out in seconds. They do this in a single pass using a guide bushing to take the heavy cuts and than finish on a secondary spindle. Maybe 5 seconds a part. This type of machine is very common, it is not super expensive (maybe around $150k) They are probably also paying 10x the price for it as well, as screw machines often times are used for lights out operation, meaning no operator other than to load the bar feeder once in a while and can run 24/7.
i would guess whoever is assembling it in Texas has a buddy nearby and went with them, or only did a search based on proximity. Maybe someone with a secondary agenda or someone getting kickbacks as well?
I got an idea, why not use one of the already custom made screws you have instead of creating a new custom-made screw? ooo, i have an idea. With new modern CNC machines you can simply have a serialized system where each screw needs its own bit, and the repair techs have to 3d print a new driver bit for each individual screw when it comes time to work on them!
I would guess these are not rolled screws. Precision custom screws like this can easily cost > $1 each. One set that we make costs $10 for a screw that is about.250" long
They chose a really really bad shop, not using the proper equipment for screws. Any good screw machine (swiss machine) should be able to produce screws like crazy, cycle times should be in seconds. Single pass on the main spindle, parting cut then finish machining on secondary spindle. You should be able to run i'd guess 10 screws a minute unless it was something super crazy on one machine, 24-hours a day would be 14k screws / day on a single machine. Granted this would be done on a $150K+ machine, might be a little tough on a 20-man shop.
Slashdot Mirror
so getting plastic into the water tables is worse than getting crude oil into them?
maybe, not sure what that one is. It is just like this: You take a bunch of oil out of the ground. The ground now has a hole where the oil was. Put plastic in that hole.
oil from plastic? I mean shove the stuff back in the hole and cover it with dirt, no thermodynamics involved.
With everything I use Wikipedia to look up It is crazy to think this man was able to make so many edits, he must be a genius
Horn, is that with a normal lath? I don't machine these personally but have a shop that machines screws for us that go down to 000-120 with a collet, biggest problem is catching them :D
His competitors can cut down to a 0000 screws need to be cut using a swiss machine. It has a bushing that rolls with the part around the stock. Your cutter sits very close to the bushing so it is like you are cutting on a 1/2" piece of steel. The stock then moves instead of the cutter to maintain this (not always) these things often have 12+ axis of movement, they are crazy. They will often do hand-offs between different chucks so you can machine multiple features at the same time.
Unfortunately most plastic isn't easily recyclable, or in the case of thermoset plastics impossible to recycle (doesn't melt). Even those that do get recycled still get made using 80% virgin (raw) resin as the recycled plastic will degrade after multiple heat cycles (cross-link, or burn).
There are biodegradable plastics. They, unfortunately though, degrade. They can't be stored as easily, need to be kept out of the light and needs to have tighter shelf life controls. They are usually very hygroscopic as well making them more difficult to process. They also don't always break down into the most friendly of things.
All of this aside, If plastic is made from oil in the ground, whats wrong with simply putting the plastic back into the ground?
Yes I would. It would show more respect to the science involved in my opinion to have a name that was less disturbing, at least to me. Is calling it a urine brick proper then, or do you think it was chosen for purpose? I do not know the science behind it, just my interpretation of it.
Are they trying to find the stupidest things to put on here? Half of the list also isn't for plastic.
Just what I need, my Proctologist to have a camera that can upload to youtube with an accidental click....
Really? You are a apple fan-boy aren't you? Or why are you getting upset at this?
It isn't that windows have better market shares, it is just that they are the ones that get hacked the easiest.
Nah, there are plenty of swiss-style lathes in the US that can make these parts super fast and are available. They chose a bad source for this. The screw was what was in the title so that is what I focused on. Chances are if they can't source something this simple they have other issues as well.
I am not saying screw-rolling equipment, which us manufactures still use (te-co is one example), granted not for standard fasteners. Those would make screws in the rate of 5 / second or something around there. I am talking about swiss-machining. These pieces of equipment are very common in the US. They would produce a part like this in the range of 5 seconds / screw, not 30 seconds / screw and are generally made for lights-off machining (24 hr production). Screw machines could make these things maybe 500k in a 24 hour period (the ones sold overseas), I would expect a swiss machine to make around 15k in a 24 hour period.
It sounds like the company making these are using standard lathes to reach this level of production or are using the machines only a few hours a day.
Here is an example of a swiss-style machine https://www.youtube.com/watch?...
I don't blame them for selling the equipment. I blame apple's supplier for going to someone without the proper equipment and then screaming BAD USA PRODUCTION!
Oh, I also don't think they heat the threaded rollers. They might, but I have never seen that.
If they are rolling the threads / stamping the threads this should take even less time (a second or less each). Many screws that use standard threads with funny shaped heads are still machined as you don't have to reform the head. Rolled threads are stronger than cut threads. Maybe the reason why the screws kept breaking in the complaint videos for their other products are they are cut instead of rolled?
They definitely should have used off the shelf components for this, no doubt about that. All I am saying with this is that a US company should have no issue making the parts in the time they needed, someone just screwed the pooch in sourcing, or had motivation to go somewhere else.
Screw machines generally give a better tolerance as well. The stock is supported against a bushing during the cutting operation. The only reason to sell the machines would be if you no longer had the need for them because you didn't have the work to fill them up. They may be a little harder to program I suppose, but not terrible. Still doesn't explain why the company assembling these things didn't go with a company that had the proper equipment to make the parts.
They are talking months here though, plenty of time to get a project like this going. It just screams bad management, or something else entirely. The 1,000 screws / day was a supplier of apple's supplier. They probably had a shop they normally worked with or something.
If they can only make 1k screws a day I bet they are not cheap screws, I would guess at least $0.5 each. That is $60/hr making 1000 parts in that time. If they had double shifts, multiple machines, etc it would be even more. If they are running this lights out and only getting 1000 screws per day they are doing something horribly wrong.
There is something wrong here, much more than just that. A screw machine should be able to spit a screw out in seconds. They do this in a single pass using a guide bushing to take the heavy cuts and than finish on a secondary spindle. Maybe 5 seconds a part. This type of machine is very common, it is not super expensive (maybe around $150k) They are probably also paying 10x the price for it as well, as screw machines often times are used for lights out operation, meaning no operator other than to load the bar feeder once in a while and can run 24/7.
i would guess whoever is assembling it in Texas has a buddy nearby and went with them, or only did a search based on proximity. Maybe someone with a secondary agenda or someone getting kickbacks as well?
I got an idea, why not use one of the already custom made screws you have instead of creating a new custom-made screw? ooo, i have an idea. With new modern CNC machines you can simply have a serialized system where each screw needs its own bit, and the repair techs have to 3d print a new driver bit for each individual screw when it comes time to work on them!
I would guess these are not rolled screws. Precision custom screws like this can easily cost > $1 each. One set that we make costs $10 for a screw that is about .250" long
They chose a really really bad shop, not using the proper equipment for screws. Any good screw machine (swiss machine) should be able to produce screws like crazy, cycle times should be in seconds. Single pass on the main spindle, parting cut then finish machining on secondary spindle. You should be able to run i'd guess 10 screws a minute unless it was something super crazy on one machine, 24-hours a day would be 14k screws / day on a single machine. Granted this would be done on a $150K+ machine, might be a little tough on a 20-man shop.
I can just see the scandals, pantsless politicians who dont realize everyone can see them... And you thought Anthony Weiner had problems
Why is everyone talking about politics in my comment about to much politics?