What are the Available Standards

Full listing of Design & Tolerance standards in Spring Calculator Professional

Compression springs

  • EN 13906-1: 2002 / EN 15800
  • DIN 2089-1: 1984 / DIN 2095/2096
  • BS 1726-1: 1987 / BS 1726-1: 2002
  • SMI 1993 / 2000
  • IS 7906-1: 1997 / IS 7906-2: 1975
  • JIS B 2704: 2000
  • Techspring

Extension springs

  • EN 13906-2: 2001
  • DIN 2089-2: 1984 / DIN 2097: 1973
  • BS 1726-2: 1988 / BS 1726-2: 2002
  • SMI 1993 / 2000
  • IS 7907-1: 1997 / IS 7907-2: 1976
  • JIS B 2704: 2000
  • Techspring

Torsion springs

  • EN 13906-3: 2002
  • DIN 2088: 1992 / DIN 2194: 2002
  • BS 1726-3: BS 8726-2 / BS 1726-3: 2002
  • SMI 1993
  • Techspring
What are the Available Wire Specifications

ASTM A1000 Grade A SiCr :
ASTM A1000 Grade B Carbon :
ASTM A1000 Grade C CrV :
ASTM A1000 Grade D SiCrV :
ASTM A227 MB Drawn : Class 1
ASTM A227 MB Drawn : Class 2
ASTM A228 Music Wire :
ASTM A229 MB Carbon : Class 1
ASTM A229 MB Carbon : Class 2
ASTM A230 Valve Carbon :
ASTM A231 CrV :
ASTM A231 CrV Annealed :
ASTM A232 CrV : Valve
ASTM A232 CrV Annealed : Valve
ASTM A313 302 Austenitic : Class 1
ASTM A313 302 Austenitic : Class 2
ASTM A313 304 Austenitic : 304
ASTM A313 305-347 Austenitic : 305 – 347
ASTM A313 631 17/7 Aged : CH900
ASTM A313 XM16 PH : XM-16 Agd
ASTM A313 XM28 Substitution : Type XM-28
ASTM A322 Hot Coiling Alloy :
ASTM A401 SiCr :
ASTM A401 SiCr Annealed :
ASTM A679 HB Drawn :
ASTM A713 Carbon :
ASTM A764 Galv. Drawn : Fin 1 C1
ASTM A764 Galv. Drawn : Fin 1 C2
ASTM A764 Galv. Drawn : Fin 2 C1
ASTM A764 Galv. Drawn : Fin 2 C2
ASTM A877 SiCr : Valve
ASTM A877 SiCr Annealed : Valve
ASTM A878 CrV Low Cr : Valve
ASTM A878 CrV Low Cr Annealed : Valve
ASTM B134 Brass : C26000 H03
ASTM B134 Brass : C26000 H04
ASTM B134 Brass : C26000 H06
ASTM B134 Brass : C26000 H08
ASTM B159 C51000 Phos. Bronze : C51000 H03
ASTM B159 C51000 Phos. Bronze : C51000 H04
ASTM B159 C51000 Phos. Bronze : C51000 H08
ASTM B159 C52100 Phos. Bronze : C52100 H03
ASTM B159 C52100 Phos. Bronze : C52100 H04
ASTM B159 C52400 Phos. Bronze : C52400 H03
ASTM B159 C52400 Phos. Bronze : C52400 H04
ASTM B164 Monel 400 : Spring Temper
ASTM B166 Inconel 600 : Sprg Temp
ASTM B197 Copper Beryllium : C17200TF00
ASTM B197 Copper Beryllium : C17200TH01
ASTM B197 Copper Beryllium : C17200TH02
ASTM B197 Copper Beryllium : C17200TH03
ASTM B197 Copper Beryllium : C17200TH04
BS 1408 Drawn : Range 1
BS 1408 Drawn : Range 2
BS 1408 Drawn : Range 3
BS 1408 Drawn : Music R1
BS 1408 Drawn : Music R2
BS 1429 Carbon : 090A65
BS 1429 Carbon : 070A72
BS 1429 Carbon : 060A96
BS 1429 CrV Alloy : 735A50
BS 1429 SiCr Alloy : 685A55
BS 2056 17/7 PH Aged : 301S81 Ag
BS 2056 Austenitic (Mo) 316 : 316S33
BS 2056 Austenitic (Mo) 316 : 316S42
BS 2056 Austenitic 302 : 301S26 G1
BS 2056 Austenitic 302 : 301S26 G2
BS 2056 Austenitic 302 : 302S26 G1
BS 2056 Austenitic 302 : 302S26 G2
BS 2056 Austenitic 305 : 305S11
BS 2056 Austenitic 305 : 904S14
BS 2056 Martensitic : 420S45
BS 2803 Carbon : 095A65
BS 2803 Carbon : 094A65
BS 2803 Carbon : 093A65
BS 2803 CrV : 735A50
BS 2803 CrV : 730A65
BS 2803 SiCr : 685A55 R1
BS 2803 SiCr : 685A55 R2
BS 2873 CB101 Copper Be. (aged) : CB 101 WP
BS 2873 CB101 Copper Be. (aged) : CB101W(H)P
BS 2873 CB101 Copper Be. (drawn) : CB 101 W
BS 2873 CB101 Copper Be. (drawn) : CB101 W(H)
BS 2873 CZ107 Brass : CZ107 1/2H
BS 2873 CZ107 Brass : CZ107 H
BS 2873 CZ107 Brass : CZ107 EH
BS 2873 CZ107 Brass : CZ107 EH
BS 2873 PB102 Phos Bronze : PB102 1/2H
BS 2873 PB102 Phos Bronze : PB102 H
BS 2873 PB102 Phos Bronze : PB102 EH
BS 2873 PB102 Phos Bronze : PB102 EH
BS 2873 PB103 Phos Bronze : PB103 1/2H
BS 2873 PB103 Phos Bronze : PB103 H
BS 2873 PB103 Phos Bronze : PB103 EH
BS 2873 PB103 Phos Bronze : PB103 EH
BS 3075 NA 13 Monel 400 : Cold Drawn
BS 3075 NA 14 Inconel 600 : Cold Drawn
BS 3075 NA 18 Monel K500 : Drn & Aged
BS 3075 NA19 Nimonic 90 : Drn & Aged
BS 3075 NA19 Nimonic 90 : Sol & Aged
BS 4637 (Bedding & Seating) : 1500
BS 4637 (Bedding & Seating) : 1550
BS 4637 (Bedding & Seating) : 1600
BS 4637 (Bedding & Seating) : 1700
BS 4637 (Bedding & Seating) : 1850
BS 5216 Drawn : Grade 1
BS 5216 Drawn : Grade 2
BS 5216 Drawn : Grade 3
BS 5216 Drawn : Grade 4
BS 5216 Drawn : Grade 5
BS 970 CCr Hot Coiling Alloy : 525A58
BS 970 CCr Hot Coiling Alloy : 525A60
BS 970 CCr Hot Coiling Alloy : 525A61
BS 970 CrMo Hot Coiling Alloy : 704A60
BS 970 CrMo Hot Coiling Alloy : 705A60
BS 970 CrV Hot Coiling Alloy : 735A51
BS 970 CrV Hot Coiling Alloy : 735A54
BS 970 NiCrMo Hot Coiling Alloy : 805H60
BS 970 SiCr Hot Coiling Alloy : 685A57
BS 970 SiMn Hot Coiling Alloy : 251A58
BS 970 SiMn Hot Coiling Alloy : 251A60
BS 970 SiMnCr Hot Coiling Alloy : 925A60
DIN 17221 Cr Hot Coiling Alloy : 50Cr3
DIN 17221 Cr Hot Coiling Alloy : 50CrV4
DIN 17221 Cr Hot Coiling Alloy : 51CrMoV4
DIN 17221 Si Hot Coiling Alloy : 38Si7
DIN 17221 Si Hot Coiling Alloy : 54SiCr6
DIN 17221 Si Hot Coiling Alloy : 60SiCr7
DIN 17223-1 Drawn : KLASSE A
DIN 17223-1 Drawn : KLASSE B
DIN 17223-1 Drawn : KLASSE C
DIN 17223-1 Drawn : KLASSE D
DIN 17223-2 Carbon : KLASSE VD
DIN 17223-2 Carbon : KLASSE FD
DIN 17223-2 CrV : KLASSE VD
DIN 17223-2 CrV : KLASSE FD
DIN 17223-2 SiCr : KLASSE VD
DIN 17223-2 SiCr : KLASSE FD
DIN 17224 17/7 PH Aged : CrNiA Agd
DIN 17224 Austenitic : CrNi
DIN 17224 Austenitic (Mo) : CrNiMo
DIN 17682 Brass : 2.0335.39 F70
DIN 17682 Copper Beryllium : 2.1247.6 F120
DIN 17682 Copper Beryllium : 2.1247.75F125
DIN 17682 Copper Beryllium : 2.1247.76F135
DIN 17682 Copper Beryllium : 2.1247.97F140
DIN 17682 Copper Cobalt : 2.1285.60 F65
DIN 17682 Copper Cobalt : 2.1285.76 F75
DIN 17682 Copper Cobalt : 2.1285.97 F80
DIN 17682 Zinc Bronze : 2.1020.39 F95
DIN 17742 Inconel 600 : NiCr15Fe
DIN 17742 Nimonic 80A : NiCr20TiAl
DIN 17753 Monel 400 : NiCu30 F70
EN 10089 51CrV4 Hot Coiling Alloy : 51CrV4
EN 10089 51CrV4 Hot Coiling Alloy : 51CrV4 NTH
EN 10089 52CrMoV4 Hot Coiling Alloy : 52CrMoV4
EN 10089 52CrMoV4 Hot Coiling Alloy : 52CrMoV4 NTH
EN 10089 54SiCr6 Hot Coiling Alloy : 54SiCr6
EN 10089 54SiCr6 Hot Coiling Alloy : 54SiCr6 NTH
EN 10089 54SiCrV6 Hot Coiling Alloy : 54SiCrV6
EN 10089 54SiCrV6 Hot Coiling Alloy : 54SiCrV6 NTH
EN 10089 55Cr3 Hot Coiling Alloy : 55Cr3
EN 10089 55Cr3 Hot Coiling Alloy : 55Cr3 NTH
EN 10089 56Si7 Hot Coiling Alloy : 56Si7
EN 10089 56Si7 Hot Coiling Alloy : 56Si7 NTH
EN 10089 60Cr3 Hot Coiling Alloy : 60Cr3
EN 10089 60Cr3 Hot Coiling Alloy : 60Cr3 NTH
EN 10089 60CrMo3-3 Hot Coiling Alloy : 60CrMo3-3
EN 10089 60CrMo3-3 Hot Coiling Alloy : 60CrMo3-3 NTH
EN 10089 60SiCrV7 Hot Coiling Alloy : 60SiCrV7
EN 10089 60SiCrV7 Hot Coiling Alloy : 60SiCrV7 NTH
EN 10089 61SiCr7 Hot Coiling Alloy : 61SiCr7
EN 10089 61SiCr7 Hot Coiling Alloy : 61SiCr7 NTH
EN 10270-1 Drawn : SL
EN 10270-1 Drawn : SM
EN 10270-1 Drawn : DM
EN 10270-1 Drawn : SH
EN 10270-1 Drawn : DH
EN 10270-2 Carbon : FDC
EN 10270-2 Carbon : TDC
EN 10270-2 Carbon : VDC
EN 10270-2 CrV : FDCrV
EN 10270-2 CrV : TDCrV
EN 10270-2 CrV : VDCrV
EN 10270-2 SiCr : FDSiCr
EN 10270-2 SiCr : TDSiCr
EN 10270-2 SiCr : VDSiCr
EN 10270-3 1.4310 Austenitic : NS
EN 10270-3 1.4310 Austenitic : HS
EN 10270-3 1.4401 Austenitic (Mo) : CrNiMo
EN 10270-3 1.4568 17/7 PH Aged : CrNiAl
EN 12166 Brass CuZn36 : R800
EN 12166 Brass CuZn36 : R750
EN 12166 Brass CuZn36 : R700
EN 12166 Brass CuZn36 : H190
EN 12166 Copper Berylluim CuBe2 : H360
EN 12166 Copper Berylluim CuBe2 : H370
EN 12166 Copper Berylluim CuBe2 : H380
EN 12166 Copper Berylluim CuBe2 : H390
EN 12166 Phos. Bronze CuSn6 : R980
EN 12166 Phos. Bronze CuSn6 : R950
EN 12166 Phos. Bronze CuSn6 : R900
EN 12166 Phos. Bronze CuSn6 : H245
Hastelloy C276 : Spring Temper
High Strength SiCrV :
Inconel 718 : Drawn
Inconel 718 : Aged
Inconel X750 Aged : Sprng Temp
Inconel X750 Aged : No.1 Temp
Inconel X750 Drawn : Sprng Temp
Inconel X750 Drawn : No.1 Temp
Induction Hardened SiCr : Grade 1
Induction Hardened SiCr : Grade 2
IS 4454 (1975) Part 1 Drawn : Grade 1
IS 4454 (1975) Part 1 Drawn : Grade 2
IS 4454 (1975) Part 1 Drawn : Grade 3
IS 4454 (1975) Part 1 Drawn : Grade 4
IS 4454 (1975) Pt4 (Aged) 17/7 PH : Grade 2
IS 4454 (1975) Pt4 302 Austenitic : Grade 1
IS 4454 Part 1 (2001) Drawn : SL
IS 4454 Part 1 (2001) Drawn : SM
IS 4454 Part 1 (2001) Drawn : DM
IS 4454 Part 1 (2001) Drawn : SH
IS 4454 Part 1 (2001) Drawn : DH
IS 4454 Part 2 Carbon (2001) : FDC
IS 4454 Part 2 Carbon (2001) : TDC
IS 4454 Part 2 Carbon (2001) : VDC
IS 4454 Part 2 CrV – A (2001) : FDCrV-A
IS 4454 Part 2 CrV – A (2001) : TDCrV-A
IS 4454 Part 2 CrV – A (2001) : VDCrV-A
IS 4454 Part 2 CrV – B (2001) : FDCrV-B
IS 4454 Part 2 CrV – B (2001) : TDCrV-B
IS 4454 Part 2 CrV – B (2001) : VDCrV-B
IS 4454 Part 2 SiCr (2001) : FDSiCr
IS 4454 Part 2 SiCr (2001) : TDSiCr
IS 4454 Part 2 SiCr (2001) : VDSiCr
JIS G 3521 Drawn : SW-A
JIS G 3521 Drawn : SW-B
JIS G 3521 Drawn : SW-C
JIS G 3522 Piano Wire : SWP-A
JIS G 3522 Piano Wire : SWP-B
JIS G 3522 Piano Wire – Valve : SWP-V
JIS G 3560 C : SWO-A
JIS G 3560 C : SWO-B
JIS G 3560 SiCr : SWOSC-B
JIS G 3560 SiMn : SWOSM-A
JIS G 3560 SiMn : SWOSM-B
JIS G 3560 SiMn : SWOSM-C
JIS G 3561 C – Valve : SWO-V
JIS G 3561 CrV – Valve : SWOCV-V
JIS G 3561 SiCr – Valve : SWOSC-V
JIS G 4314 SUS 302 Austenitic : WPA
JIS G 4314 SUS 302 Austenitic : WPB
JIS G 4314 SUS 304 Austenitic : WPA
JIS G 4314 SUS 304 Austenitic : WPB
JIS G 4314 SUS 304 Austenitic : WPD
JIS G 4314 SUS 304N1 Austenitic : WPA
JIS G 4314 SUS 304N1 Austenitic : WPB
JIS G 4314 SUS 316 Austenitic (Mo) : WPA
JIS G 4314 SUS 631J1 17/7 PH Aged : WPC
JIS G 4801 SUP10 CrV Hot Coiling Alloy : SUP10 CrV
JIS G 4801 SUP11 CrB Hot Coiling Alloy : SUP11 CrB
JIS G 4801 SUP12 SiCr Hot Coiling Alloy : SUP12 SiCr
JIS G 4801 SUP13 CrMo Hot Coiling Alloy : SUP13 CrMo
JIS G 4801 SUP6 SiMn Hot Coiling Alloy : SUP6 SiMn
JIS G 4801 SUP7 SiMn Hot Coiling Alloy : SUP7 SiMn
JIS G 4801 SUP9 CCr Hot Coiling Alloy : SUP9 CCr
JIS G 4801 SUP9A CCr Hot Coiling Alloy : SUP9A CCr
MP35N :
Ni Span C-902 :
Nimonic 90 : Cold Drawn
Nimonic 90 : Sol Treat
Oteva 70 SC : Super Clean
SAE AMS 4676 Monel K500 : AMS 4676
SAE AMS 5678 17/7 PH : CH900
SAE AMS 5698 Inconel X750 No.1 Tmp : No 1 Temp
SAE AMS 5699 Inconel X750 : Spring Temper
SAE AMS 5699 Inconel X750 : Triple HT
SAE AMS 5833 Elgiloy / Phynox : Drawn & Aged
Titanium 6 4 : Condit. 1
Titanium 6 4 : Condit. 2
Titanium 6 4 : Condit. 3
Titanium Beta C : Drawn & Aged

Optional Software Modules

You must purchase the standard calculation module for each spring type you are interested in, and have the choice of adding on any additional modules. This enables you to perform all the calculations involved with a spring design, and also provides tolerance data to your chosen design standard. Also included are fatigue life estimations and relaxation predictions (where data exists for a specific material), as well as a spring drawing and load/length graph.

The Design module (available for compression, extension and torsion springs) allows you to specify geometry constraints and one or two working positions, and will provide you with the lightest possible spring that meets these needs. An addition to this is the Optimisation module, which is currently available for compression, torsion and conical springs. This is our most advanced functionality, and allows you to give a minimum and/or maximum value for *any* of the dimensions or properties of the spring. You then choose to optimise for a minimum or maximum value of any aspect that interests you – such as the lowest weight, shortest solid or free length, or highest natural frequency.

Finally, the Compass module is available for compression and extension springs. This is aimed at spring makers, and allows the coiling process to be optimised by measuring a spring after an initial setup of the coiling machine, and then calculating the optimal setup to bring all properties within tolerance and as close to specifications as possible.

Will it run on my computer?

Spring Calculator Professional will run on Windows XP, Vista, Windows 7 (32 and 64 bit) and Windows 8 and Windows 10.

If you’re wanting to design springs using Mac or Linux computers, you might be interested in our Online Spring Calculator. Alternatively, we can also provide a cloud-hosted version of Spring Calculator Professional.

What is 'remotely hosted' Spring Calculator Professional?

This is an exciting new option, and requires just a small access client to be installed. The software is maintained by IST and automatically updated to the latest version as soon as it is available. Your designs are safely stored on our servers.

The client software is available on Windows, Mac and Linux.

The cost of the hosted system is £15 per spring type per month (reduced to £10 for IST Members), with a 10% discount for up-front annual payments. The account can be shared with other people, but only one person can log in at any one time.

We’re currently working on an online sign-up process, please contact us if you’re interested in subscribing.

Can I buy a network license?

Yes, Spring Calculator Professional is available with either single user or multi-user licenses.

We call our multi-user licenses ‘floating’ licenses. If you buy a floating license, our software can be installed on as many computers as you like, but it can only be used on one computer at any one time. This is a perfect solution for situations where there are are several engineers who will be occasional users of the software. Two floating licenses would allow two simultaneous users, and so on.

Floating licenses are designed for use within single sites. If you have multiple sites, you would require a separate license for each site.

How do I buy Spring Calculator Professional?

Our software is available in two ways. You can either purchase and install it on your own computer, or run it remotely as a cloud-hosted service

On-premises install

Please contact us to get a quote; the price varies depending on the spring types and options you require – as well as the number of licences you need.

For existing customers, we are usually happy to offer our standard 30 day credit terms. If you are a new customer, we ask for payment to have been received in our bank before we provide the software. This payment can be via credit card or bank transfer. Once the order is approved, the software is provided electronically (via download), usually within 24 hours (Monday to Friday).

Remotely hosted

This is an exciting new option, and requires just a small access client to be installed. The software is maintained by IST and automatically updated to the latest version as soon as it is available. Your designs are safely stored on our servers.

The cost of the hosted system is £15 per spring type per month (reduced to £10 for IST Members), with a 10% discount for up-front annual payments. The account can be shared with other people, but only one person can log in at any one time. Contact us to create an account!

Are there any on-going payments?

The price includes the first year of support and maintenance. After this there is an annual fee; it is optional but highly recommended. As well as providing free updates to the software, it is essential if you have any problems, questions, issues with your license etc.

Can you supply the software on CD, DVD or USB Stick?

Unfortunately not; our software is delivered as an electronic download only.

Installation

Software Requirements
Spring Calculator Professional has very low requirements; it will run on any version of Windows from XP onwards – we support XP, Vista, 7 and 8. It will work happily on 32 or 64 bit versions.

Although we know some customers run it on a server through a remote desktop client, we cannot officially support this ourselves. If this is a requirement, consider the hosted version IST offers.

I have an old version of your software - Version 7.5 - and have lost the CD. Can you supply a new one?
Unfortunately we can’t.  We no longer ship or support that version of the software, and haven’t done since 2011.

We can’t say whether Version 7.x of the software will work on the most recent version of the Windows software.

We can offer you an upgrade from Version 7 software to the most recent version of Spring Calculator Professional. Please contact us to discuss your requirements.

I've lost my installation instructions for Spring Calculator Professional - can I get new ones?
When you purchased Spring Calculator Professional you would have been sent an email with details of how to install and license your software.

The SCP software is distributed as an electronic download, and is also licensed electronically. We do not ship the software on CD or USB Stick.

If you purchased fixed licenses, download this document – Installation and Licensing instructions

If you purchased floating licenses, then download this document – Floating Installation and Licensing Instructions

If you’re looking for the instructions for installing the Demo Optimisation Runtimes, click here.

 

I've been asked to click on an Update program on a CD - I'm installing from a downloaded file. Help!
This error sometimes occurs during installation and is usually caused by part of a previous version of SCP being still present on the machine.

A “clean” copy is installed with the software, but it’s left behind when you uninstall so we have to remove it manually:

  • Uninstall the software – don’t worry, it will leave your spring design database behind
  • Navigate to the software install location – by default either C:\Program Files\ISTSpringDesign or C:\Program Files (x86)\ISTSpringDesign (on a 64 bit Windows version). Delete the file IST MatData.mdb.
  • In the Explorer window, paste this into the location bar at the top: %LOCALAPPDATA%\VirtualStore and press Enter (see screenshot below for an example under Windows 8)
  • Go to Program Files (x86) (if it’s there) or Program Files (if it’s not), and then into ISTSpringDesign. If there’s a file ISTMatData.mdb, delete it. For future reference, this is also where the spring design database would be kept (if you don’t use a network version)
  • Reinstall the software

 

 

Problems when running the software

Errors running Optimisation Calculations
There are a number of steps that must be performed to correctly install the optimisation functionality. These are described in more detail in the installation document provided with the software, but the most common errors that are shown are reproduced here.
Error Message Cause
This is shown when the Matlab Component Runtime (MCR) files are not installed. These must be downloaded separately from the main Spring Calculator Professional software. It can be installed before or after SCP.
This message will appear if the MCR is installed, but the optimisation DLL is not registered. Run the MCR_Reg program.
Everything is installed ok, but you have to run an optimisation calculation once as administrator (to expand some calculation files).

Note that running as a user with administrator rights isn’t sufficient, you need to right-click on the icon and choose “Run as Administrator”.

I can't use the Help Files

The Help files within Spring Calculator Professional are based on the older WinHelp system. A new computer may not be able to view these, giving the error shown below.

Following the link in the window above takes you to a Microsoft page where you can download an update containing the help file viewer. After this is installed, the help files will work fine.

I've been running SCP for sometime and suddenly I was asked to insert an Installation CD, and can't use SCP!
If this error occurs when you’ve previously been able to use SCP without any issues, it often suggests that the program can no longer connect to one of the databases that SCP requires to run. This most frequently happens when the databases are stored on a network drive.

Before contacting us for support, try the following:

If the databases have been stored on a network share, check that you still have a connection to that share. If the share is no longer connected, you will not be able to access the databases. Try re-booting your computer and try to use SCP again.

If this makes no difference, check with your IT support people to ensure that you still have permissions on the network drive to read and write files.

If this problem occurs when your database files are stored on your local PC, it could indicate that the database file has been damaged in some way. This may happen if the machine was turned off whilst SCP was updating the database.

I'm running SCP on Windows 2016 Terminal Services - it seems slow.
Spring Calculator Professional is written in VB6 and compiled as a 32 bit executable.

Whilst we do not support SCP running on any Windows Server platform, we appreciate that some of our users do this, and up until recently no problems have been reported.

However, we have found that in some cases SCP runs more slowly than usual.

We have found two ways to get around this.  Either:

  1. Configure the SCP program to run as XP Service Pack 3 compatible.
  2. Configure the SCP program to run as Windows 8 Compatible.

You may need to experiment; results differ from server to server.

Using the Software

Can I add my company logo?

One of the questions that we’re asked about Spring Calculator Professional is whether the Production Drawings that are available within the program can contain a company logo.

Well, the answer is yes, and in this article I’ll show you how.

First of all, where does the Logo appear on the finished documents?

For most of the outputs, the logo appears against the name and address details on the final print out or PDF export:

 

It won’t show on the screen view – just on the final output. The one exception to this is the Production Drawing, where the logo appears at the lower left of the drawing and is visible on the screen view as well as the output.

What do you need?

• A Logo image in either JPG or GIF format. Note that the software will NOT recognise PNG files.

• An account on the PC on which the software is installed that will permit you to modify files in the Windows\Program Files or Windows\Program Files (x86) folders.

The logo file should be of a reasonable size – the one in the example above is 250 x 160 [pixels at 96DPI and is adequate for most purposes. If you want the highest quality of printed image, you should create the image at 300DPI and adjust the size accordingly.

Adding the Logo

If you are currently using the software, shut down Spring Calculator Professional.

Create your logo, and name it CompanyLogo.jpg or CompanyLogo.gif (depending on whether it’s a JPEG or GIF file).

Locate the folder that contains the installed files for IST Spring Calculator Professional. If you’re not sure where the files are on your PC, Click on the ‘All Programs’ option your Start Menu and find the ‘IST Spring Calculator Professional’ folder. Open this up, then right-click on ‘Spring Calculator Professional’ and select ‘Properties’ from the menu. You should see something similar to:

 

We’re interested in the ‘Target’ – this tells us where the program files for Spring Calculator Professional are to be found. In this case, they’re found in the folder C:\Program Files (x86)\ISTSpringDesign\

The part of the path before ‘ISTSpringDesign’ may be different on your PC, depending upon the version of Windows.

Use Windows Explorer to navigate to this folder. If you cannot find the folder, or are denied access to it, you should seek help from your IT support people. The folder should contain several files, including the following:

 

Now copy the CompanyLogo file you created in to this folder. Again, if you get any ‘Access Denied’ messages you should seek the assistance of your IT support people.

Testing the Logo

Close down Windows Explorer and run Spring Calculator Professional.

If you see an error referring to illegal image format, there is an issue with the CompanyLogo file you created, so please check that it is a valid GIF or JPG file.

Otherwise SCP should run as normal, and the logo will now be available on all printouts.

Can I change the company name and address on printouts?
This was a problem in earlier versions of our software, but is extremely quick and easy to do in Spring Calculator Professional. Simply click on Edit Company Details on the File menu:
Can I use multiple design databases with Spring Calculator Proffessional?

Introduction

New to version 1.0.16 is the concept of handling multiple spring design databases in a simple but powerful way. It’s now straightforward to group together your designs into a number of places, while easily loading from or saving to a particular database. Perhaps you want one database for enquiries/quotes, another for live jobs and a third for a particularly important customer? This is now much easier to do.

Editing data sources

At the heart of the new system is the “Edit Data Sources” option on the File menu. This shows you at a glance which databases you have linked for both spring designs and materials. You can only link to one materials database at a time, but you can add multiple design databases. In the example below three additional databases have been added to the standard file.

 

Loading from or saving to multiple data sources

This process is designed to be as quick and easy as possible. The default behaviour is to list spring designs from all of your databases, but you can also click on a particular database to only show designs saved here.

Note that you can also click on a design and use the Delete button to erase it from the database, which is a much simpler process than in previous versions.

Saving designs works in a similar way. You must select which database to use, although when you are editing an existing design this will default to the location you loaded it from.

Backing Up Spring Designs
We’ve had a number of customers ask us for advice on backing up their data recently. Our advice is to keep you spring design database file located on a file server where it can be backed up with your other data. Simply make a copy of the ISTSpringData.mdb file on a network share, and use the IST Config program to use this as the default database file in future.

If you want to copy across your existing database file (to work from going forward), it is located in the application installation folder, which is by default C:\Program Files\ISTSpringDesign (or C:\Program Files (x86)\ISTSpringDesign on 64-bit Windows). One thing to be careful of here is that usually your springs are saved in a copy of the file – you need to click on “Compatibility files” to see the version to put on the network. Otherwise you’ll get an empty database!

 

Why our software works the way it does….

The calculated stresses are wrong!
We often get asked why the calculated stresses in our software don’t agree with “standard” equations for compression spring design. Almost without exception, this is due to confusion about corrected and uncorrected stress.

The default design standard in Spring Calculator Professional is EN 13906. This states that uncorrected stress should be used for static or quasi-static designs. This therefore is the value that you will see on the main Validation window. If you view the Goodman diagram, this always uses corrected stresses, as it’s dynamic by its very nature.

Some other standards such as the old British Standard BS 1726, use corrected stresses throughout.

What do the two buckling lengths mean?
If you look up buckling in EN 13906-1, you’ll see that a single critical deflection is given that defines when a spring will buckle. So what are the meaning of the values “buckling possible” and “buckling definite” in Spring Calculator Professional?

These values come from the old British Standard BS 1726. This defined whether a spring was stable or not, using an equation containing a factor H. This factor was different for each type of end condition, and given a range (eg “both ends fixed and guided” was H = 1.6 to 2.0. Either end of this range is used to give “buckling possible” and “buckling definite”.

The values in EN 13906 correspond to the “buckling definite” condition (the larger H values here) – so effectively we are presenting an extra “warning” length.

Why is the shot peening option not available for extension and torsion springs?

The shot peening option is removed from both of these spring types, for different reasons:

With extension springs – assuming the spring is close-coiled as most are – it’s usually impossible to get any good coverage of the inside surface of the spring, where the benefit is most needed. In fact peening can be useful if you have problems with the loops failing, but not enough research has been done to be able to predict the improvement in life.

With torsion springs, it would seem logical that the benefit of peening would be worthwhile, because the position of crack formation is usually on the outside of the spring. But torsion springs benefit from beneficial residual stresses from the coiling process (which is why they are stress-relieved at lower temperature than compression springs, and why the working stress can be up to 130% of UTS without a problem), and peening disrupts this. The stress distribution is complex enough that it’s impossible to predict how much benefit peening will give, or if it might actually make the life worse!