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Springs

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Springs

Postby Phil » 26 Feb 2021, 19:59

I posted this on yonder site as they have an active Scrolling forum


https://www.ukworkshop.co.uk/threads/he ... gs.129050/
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Re: Springs

Postby Gill » 27 Feb 2021, 17:37

My Hegners' springs are rounded over at their ends so they hook around the arm pivots. Not only that, they sit in channels cut into both arm pivots. I've never suffered your misfortune but the only way I can see that the springs would jump out would be if they were too long.

I'd certainly take the trouble to ask Hegner to confirm that they've sent you the right springs.
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Re: Springs

Postby Phil » 01 Mar 2021, 10:21

Gill,
This is what the spring looks like and the hole it hooks into. (Both Hegners the same)
Are your springs different?

Spring.jpg
(55.16 KiB)


Hole.jpg
(16.42 KiB)



I fitted the old spring back and also tightened up the arms, there was a bit of 'play'.

Then cut some pine and the spring stayed hooked in.

Yesterday afternoon I cut out a small Xmas face and the spring fell off again. I only noticed this when I was finished cutting :oops:

The new springs are the correct ones for these machines, only slightly less stretched.

I will try communicate with Hegner and see if there is any technical knowledge.
(Hegner USA were a total dead loss)

The final solution (this is where the TV screen darkens, weird music plays ........... :lol: :lol: )

Will be to take a length of wire and tie it up! :twisted:
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Re: Springs

Postby Gill » 01 Mar 2021, 12:27

Ah! We're talking about different springs :oops: . I'll photograph mine later and upload them.
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Re: Springs

Postby Gill » 01 Mar 2021, 15:25

This how my spring is fitted:

Image Image

I've looked through Zachary Taylor's 'Scroll Saw Bench Guide' (written in 1999 and published in 2002) and all the Hegner photographs he uses show saws which have a similar arrangement to mine.

Your photo seems to show fittings for arm pivots although there aren't any. Could that be the root of your trouble? Perhaps your old saw came to you with bodged fittings created by the previous owner which made the saw work without the arm pivots?
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Re: Springs

Postby Phil » 04 Mar 2021, 12:52

Gill, thanks for the pics

The arm pivots on these machines are a lot more forward than the newer models.

I have wired the spring in place so that I can cut.

WP_20210304_001.jpg
(23.61 KiB)


The large machine is the same setup. You can see the oiling ports on the arms.

WP_20210304_002.jpg
(20.72 KiB)
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Re: Springs

Postby novocaine » 04 Mar 2021, 13:32

I think I'd consider making a small bracket to come of the tensioner bolt and fit a standard wound spring Phil. that liner spring design is pretty shonky.
Carbon fibre is just corduroy for cars.
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Re: Springs

Postby Gill » 04 Mar 2021, 14:30

You shouldn't have to do that, Phil. I'd bite the bullet and contact Hegner again. Tell them you're also consulting on the national woodworking forums and they might be a bit more supportive.
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Re: Springs

Postby Phil » 05 Mar 2021, 13:07

novocaine wrote:I think I'd consider making a small bracket to come of the tensioner bolt and fit a standard wound spring Phil. that liner spring design is pretty shonky.


That might be a long term solution.

Sizing the right 'strength' springs might be a challenge :(
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Re: Springs

Postby Phil » 05 Mar 2021, 13:14

Gill wrote:You shouldn't have to do that, Phil. I'd bite the bullet and contact Hegner again. Tell them you're also consulting on the national woodworking forums and they might be a bit more supportive.


I posted a query on the German site after first translating what their acronyms meant :D

Then went to the UK site, loaded all required information and my story.

Hit Submit, does nothing. On about the 4th try it said "Capture" not available.
(been there seen it and still an issue)
Last time tried via their sales, looks like they are all on virus-vacation :lol:
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Re: Springs

Postby Phil » 20 Mar 2021, 07:46

An update .....................

Hegner UK - no reply, they are still stuck in a C-19 time warp :lol: :lol:

Hegner Gmbh - E-mail reply back from a chap (no designation so could not see where he fitted in)

Sent him pics of the machines. Replied back that the springs need to "go all the way in"

I asked for a pic of their machine, return e-mail with pic showing spring fitted correctly.
He also said "you might need a hammer to get them in"

Ok, so back to the Hegners.

Polycut first - pushed spring into holes as far as I could, then used the rubber mallet to get it all the way in. 8-)

M1 - first get all the wiring off, then a repeat of the fit & hammer.

I have been doing a lot of cutting on the M1 for Project Wendy (will post) and machine cuts fine.

Here is what the springs look like fitted correctly.

Polycut .jpg
Hegner Polycut
(19.73 KiB)



M1 .jpg
Hegner M1
(23.21 KiB)




I also decided to look back in my archive when I bought the machines and refurbished them, to see how the springs were fitted.
See pic below of the M1 - spring was fitted all the way in, so my stupidity when I fitted the springs :evil:

SmallHegnerBeforestripping.jpg
Hegner M1 before stripping
(41.54 KiB)
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Re: Springs

Postby 9fingers » 20 Mar 2021, 08:37

Good to hear that you’ve got it sorted Phil
Just in time for the spring equinox!
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Re: Springs

Postby Phil » 20 Mar 2021, 08:45

9fingers wrote:Just in time for the spring equinox!
Bob


We are quite far into autumn, trees are shedding leaves.

Thankfully the days are cooler at about 27c, I might need to start wearing a T-Shirt :lol:
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