How to bend / repair this plastic case
How to bend / repair this plastic case
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Spare tyre

Original Poster:

11,425 posts

146 months

Sunday 27th July
quotequote all
Purchased a second hand archery kit for my kids today - great toy

The big plastic box is the target / storage and comes apart by design at the hinge to transform into the target

It hinges and clips closed correctly but it looks like it was stored with some arrows hanging out, so now the box doesn t close neatly, causing the arrows to fall out and clatter the nearby car / house paintwork etc

Ideally I want to bend it some how back into shape, what s the best way, leave it in the sun compressed under some weight, heat it? Or some other cunning plan

If it used additional things like catches etc, the kids won t use them so will end up never getting put away properly

I have a nice gap beside the freezer in the utility room ear marked

Any help appreciated





Edited by Spare tyre on Sunday 27th July 21:25




Edited by Spare tyre on Sunday 27th July 21:25




Edited by Spare tyre on Sunday 27th July 21:26

Skyedriver

20,630 posts

298 months

Sunday 27th July
quotequote all
Screw a batten across the bent top (inside).
Or try hot water.

Easternlight

3,652 posts

160 months

Sunday 27th July
quotequote all
Hot air gun and bend it back to flat.
But you may find it will creep back to the shape it is now eventually.

sherman

14,459 posts

231 months

Sunday 27th July
quotequote all
I would start with laying it down flat but closed and waft a hairdryer over it until the plastic is nice and warm and then lay a length of wood board over the now warmed up bent section and weigh it down with several tins from the kitchen over night.
It should hold the flat shape once cool again.

Spare tyre

Original Poster:

11,425 posts

146 months

Monday 28th July
quotequote all
Cheers all, will update when mission attempted

Demelitia

687 posts

72 months

Tuesday 29th July
quotequote all


Get a couple of spring clamps that will fit around the corners of the box and hold it together.
Place something , about 5-10mm thick in the position marked. A folded up towel will do.
Clamp the corners of the box together, heat across the entire closing edge, both sides, then quench them with a damp cloth.

Leave it an hour or two and come back to check results.

hellorent

546 posts

79 months

Tuesday 29th July
quotequote all
This ^^^^^

GasEngineer

1,486 posts

78 months

Tuesday 29th July
quotequote all
Demelitia said:


Get a couple of spring clamps that will fit around the corners of the box and hold it together.
Place something , about 5-10mm thick in the position marked. A folded up towel will do.
Clamp the corners of the box together, heat across the entire closing edge, both sides, then quench them with a damp cloth.

Leave it an hour or two and come back to check results.
What is the folded up towel for? Is it to stop the centre part heating up?

Demelitia

687 posts

72 months

Tuesday 29th July
quotequote all
GasEngineer said:
Demelitia said:


Get a couple of spring clamps that will fit around the corners of the box and hold it together.
Place something , about 5-10mm thick in the position marked. A folded up towel will do.
Clamp the corners of the box together, heat across the entire closing edge, both sides, then quench them with a damp cloth.

Leave it an hour or two and come back to check results.
What is the folded up towel for? Is it to stop the centre part heating up?
The plastic needs folding past ‘flat’ to enable it to stay that way once the inevitable spring back happens.
The towel acts as a spacer allowing the corners to be bent further, equally, and will support the weaker area around the handle as the corners are bent.

DonkeyApple

63,061 posts

185 months

Tuesday 29th July
quotequote all
May just have got hot in someone's shed.

As mentioned, getting it back to flat will require over bending and heating but you'll probably improve it by clamping between two bits of wood to hold it flat and either pouring boiling water over it or using a hairdryer or fan heater on it.

Or just wait for another hot day and leave it out in the sun with some weights on the corners?