Deprecated Nike FOOTWEAR Tube Bag (seller banned)

[67Beatle88]

cavx are you doing anything to the end caps? They look too rounded to me.

 

[MattgomeryBurns]

@cavx are you doing anything to the end caps? They look too rounded to me.

He posted this in his build thread:

Yeah, there are a few parts that I need to tweak and the end caps are one of them. The metal tool got hot and the plastic actually stuck during the pull. Apparently cooking oil is what I need (same principle as frying an egg) to help the plastic slip and not stick.

This is more of a proof of concept that -

A: That my vacuum former actually works for some big parts and deep pulls and
B: That this bag can be made from just 5 main parts. I'm sure my initial parts count was 13 or something, so this method has allowed me to re-design down to the 5 main parts.

So there is still windows to be cut from some clear, and based on how the handle recesses went, I will be having to form new ones. But these can be made from off cuts and do not require a full sheet of plastic.

I did the end caps individually using a full sheet per cap as a male tool. I think that if I went female tooling, I could make 3 caps at a time and actually get a better result from each part as I will be drawing into the tool, not pulling over it. With female tools, webbing between parts IS NOT an issue and as the plastic cools, it shrinks away from the tool, not onto the tool like it does with a male tool.

Of course, there is still temperatures and heating times to work out. This is 4.5mm plastic and each part took about 3 minutes to heat to a formable state. At times, I may have gone too hot as hearing creaks and groans during the pull can be a bit unnerving with this thickness and not enough heat.

The very first test on this rig a few years ago snapped a 5mm sheet of Perspex in half because it was not hot enough.

 

[cavx]

@cavx are you doing anything to the end caps? They look too rounded to me.

I will make a new tool in the next few days and hopefully we have not only a better shape, but the ability to pull 3 at a time and not just one.

 

[cavx]

I will make a new tool in the next few days and hopefully we have not only a better shape, but the ability to pull 3 at a time and not just one.

So here is where I am up to on the new tool for the end caps.

I think it was 67Beatle88 that was concerned about the end of the cap being too round. I still have to add the centre parts buy they will be the same Dia as the cut end of these bowls. The plastic will draw down and whilst it will still have a radius, it will be much sharper than the current vacuum formed parts.

The original bowl was 4.5" tall and because I made my parts in male tool configuration, then trimmed the parts back to the desired length, I ended up with a tube bag that is slightly undersized.

This tool will be female and there once I trim, I should have a Dia of 11.5" (screen used bag is supposed to be 11.5) again.

I need some bondo to fill in the centre cavity of the three bowls. MDF is fine for the rest of the tool.

Sent from my CPH1701 using Tapatalk

 

[cavx]

Progress on the new tool.

This should give me the sharper tapered end and not as rounded. Just need to work out what to fill the gaps between each bowl with.

 

[abastiensharp]

Looking awesome, enjoying watching this come together...

 

[cavx]

Looking awesome, enjoying watching this come together...

Thank you. I am getting there step by step.

 

[El Diablo]

Awesome work! The smart glass idea sounds like a good option :thumbsup

 

[cavx]

Awesome work! The smart glass idea sounds like a good option :thumbsup

Thank you. Yeah it will be cool to see it do what it does in the movie.

These body parts were just slump formed as the plastic was too small for the vac form rig. It is 3mm thick and because it was not stretched thin, it remains 3mm.

I so need to get the vac form blanket so I can do the lids the same way.

Look like I won't be able to make 3 end caps but 2 is still better than 1.

Sent from my CPH1701 using Tapatalk

 

[edwinfabian]

Awesome work! Super late to this thread. Is there any way I can get in on this?

 

[cavx]

Awesome work! Super late to this thread. Is there any way I can get in on this?

Thank you.

When I get to a PC, I will add you to the list.

Sent from my CPH1701 using Tapatalk

 

[cavx]

edwinfabian, you have been added.

1. MattgomeryBurns - Deposit paid

2. ajhix

3. krell101

4. Davidsjferguson

5. JKRIB

6. heartlikewar

7. EmmaInCandyland

8. MitasTouch

9. shoxxo

10. Pitbull

11. Jedifyfe

12. surf

13. jhk1976

14. alloccosol

15. Jediguy

16. Adomeitw

17. El Diablo

18. Nzfly deposit paid.

19. Egos13

20. HanSewLow

21. Agentsmith350

22. cmadridc

23. mac malloy

24. warrenhouck

25. MicroWavezzz

26. DeadstockNYC

27. Shakey

28. Executioner

29. bump19

30. amazen

31. staticweb23

32. Stieller

33. abastiensharp

34. AdamCFC

35. cpujoe

36. edwinfabian

 

[cavx]

This is exciting. The proper vacuum blanket has been found and bought.

What is so special about this I hear you ask?

Well I am glad you asked. This rubber sheet can handle up to 250 degrees Celsius and this allows me to precut my plastic, hence less waste, and form the parts with less stretch. This means that each part is closer to the original thickness.

So I was able to slump form some 3mm plastic to make tube bag bodies. I could not make lids due not bring able to shape the plastic into the tool.

This rubber sheet provides the seal.
The test peice I showed images of was neoprene rubber and that stuff can only handle 103.5 C before it melts.

Sent from my CPH1701 using Tapatalk

 

[cavx]

So the blanket works a treat.

 

[cavx]

Progress

The run bags will be made from 3mm. This is 4.5mm and getting heavy.

 

[audis4]

:thumbsup

 

[cavx]

:thumbsup

If you like that, you will love this.

 

[cavx]

And a video

 

[cavx]

So the run has begun. If you want in, I will require a deposit. The balance will be due prior to shipping. It looks like I can include shipping in the $400 USD price.

The tube bag will be made from 3mm plastic to keep the weight down. The design has been as altered to make these closer to screen accurate. The size is 550mm long (22") by 290mm (11.5") Dia.

The plastic has a texture and it is both light and strong, so these bags should be practical props.

I have contacted Roland in Germany about decals and he is happy to provide those for a small fee. Once the details are sorted, I will post a link.

If you want my raised decals like on my prototype tubebag, let me know. If you want a custom sized bag, let me know.

Sent from my CPH1701 using Tapatalk

 

[Davidsjferguson]

How much deposit do you need? These look awesome!!