Difference between revisions of "Tools/metallathe"

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File:Turningbetweencenters.JPG|Turning a long shaft between centers
File:Turningbetweencenters.JPG|Turning a long shaft between centers
File:hardturning.JPG|Turning a hardened steel circular saw blade held on the face-plate using a CBN insert
File:hardturning.JPG|Turning a hardened steel circular saw blade held on the face-plate using a CBN insert
File:Lampvidthumbnail.jpg|Circular Saw Table Lamp which features the lathe a lot|link=https://www.youtube.com/watch?v=ANH9uDAkPFE
File:Hardturningthumbnail.jpg|Demonstration of turning hardened steel|link=https://www.youtube.com/watch?v=Dj0BQDkcmeo

Revision as of 22:55, 29 April 2021

Harrison M300 Light-industrial Metal Lathe

This tool requires induction
Owing to it's dangerous nature, delicate nature, or expense, this tool requires that you be inducted on it's proper handling before use.


Harrison M300 Metalworking Lathe

The Harrison M300 lathe is an educational/Light-duty industrial lathe well suited for our requirements. It has a maximum part diameter of 330mm and a maximum length of 650mm and is designed to work with all standard engineering metals and well as most plastics but please note it is NOT suitable for use with any types of wood because wood fibres are sticky and abrasive so they tend to cause damage to the slideways. Induction is required for all members wanting to use the lathe. The instruction manual for the lathe is available here.

Current Status

Date Status Comment
25th October 2019 Fully Functional Oil seals repaired, oil levels should be checked from now on.

Induction levels available

Induction options are level-1 which covers safe use of the machine and a handful of simple topics suitable for very simple jobs and is available from all trainers, takes about 60 minutes, with a maximum group size of 3 but 1-to-1 will go faster. Level 2 induction which covers a few more topics and is likely to deal with most machining operations that occasional users are likely to need. Level 2 induction takes 2 x 2hr sessions with a maximum group size of 2 although 1-on-1 sessions are available, there may be a small charge for the materials used during training. Level 3 induction which covers most machining operations that are likely to occur even on complex projects as well as some of the more complex maintenance tasks on the lathe. Level 3 induction will take multiple sessions of 3+ hours and is 1-to-1, again there will be a small charge per module for materials used and trainer time.

Some of the inductors also offer workshop sessions that involve completing a specific project rather than general lathe operations, these sessions will include at least a basic induction and usually include some but not all material from other induction levels. Charges and times for these vary, see the workshops page.

Tools currently available

The lathe is fitted with a Multifix clone quick change toolpost, size A. We have a number of toolholders available for use. If you change a tool, please re-fit the original before putting the toolholder back on the board.

Lathe users with level-1 induction should be using the High-Speed-Steel turning tools as they're cheap, robust and easily re-sharpened, for users with level-2 induction we have the following carbide-insert tooling available

Carbide Tooling available for use by people with level-2 induction
Tool Name Image What's it for? Holder size Insert type (if present)
20mm Boring bar 20mmboring.jpg Expanding large and deep holes in work 20mm Boring Bar holder DCMT11T308 or DCMT11T304
12mm Boring bar 12mm boring.jpg Expanding smaller holes 20mm standard with 8mm shim CCMT060204
3mm Parting blade 3mmparting.jpg Cutting pieces off from stock bars 26mm Parting blade holder GTN3
WNMG Roughing tool WNMGtool.jpg Removing a large amount of material rapidly 20mm Standard holder WNMG0804(02/04/06/08)
DCMT Finish tool SmallDCMTtool.jpg Fine detail work and surface finishing 20mm standard with 8mm shim DCMT070204


Photo Name Type Condition/Notes Location
M3003jaw.jpg 3-Jaw self-centring chuck Work Holding Standard chuck for jobs not requiring accurate concentricity On the Lathe usually, spare jaws in the black cabinet by the tailstock
M3004jaw.jpg 4-Jaw independent chuck Work Holding For holding odd-shaped workpeices or work where accurate concentricity or offsets are needed - MAXIMUM SPEED 1700rpm Shelf under lathe
M300colletchuck.jpg Collet chuck Work Holding For accurate concentricity on round or hexagon workpeices, suitable for high-speed use and small workpieces. Comes with 12 collets and key Shelf under lathe
M300faceplate.jpg Faceplate Work Holding For very large workpieces, MAXIMUM SPEED 1200rpm and possibly much lower depending on workpiece Shelf under lathe
M300catchplate.jpg Catch plate Work Holding For turning between centres, maximum speed will depend on workpiece but is usually severely limited. Shelf under lathe
Lathe dogs.jpg Lathe Dogs Work Holding Used with the Catch plate to drive the work. Three sizes - 1/2", 3/4" and 1". In Black metal cabinet near tailstock, top drawer
M300travelingsteady.jpg Travelling Steady Work holding Stabilizes objects which are thin and long and which have to be parallel-turned. The bolts to attach it to the saddle are duct-taped to it. In Black metal cabinet near tailstock
Fixed steady.jpg Fixed Steady Work holding Holds long workpieces in a fixed location for turning operations in the middle of the work. In Black metal cabinet near tailstock
M300millingslide.jpg Milling slide Work holding Used when milling small items with a milling cutter mounted in the lathe chuck. Requires mounting holes drilling into cross slide in order to be mounted so not currently usable Red cupboard by fire door
M300keychuck.jpg 16mm Keyed Drill Chuck on 3MT spindle Tool holding Used in the tailstock to hold drills for boring out workpeice On rack on splashback
M300keylesschuck.jpg 13mm Keyless drill chuck on 3MT spindle Tool holding Used in the tailstock to hold drills for boring out workpeice On rack on splashback
2mt chuck.jpg 10mm Keyed Drill Chuck on 2MT spindle Tool holding Used in the tailstock to hold smaller drills for boring out workpiece In Black metal cabinet near tailstock, top drawer
M300livecentre.jpg Live centre on 3MT spindle Work holding Holds the far end of a workpiece steady On rack on splashback
2mt live centre.jpg Live centre on 2MT spindle Work holding Similar to the 3MT live centre, but for smaller workpieces In Black metal cabinet near tailstock, top drawer
2mt dead centre.jpg Dead centre on 2MT spindle Work holding Holds the end of a long workpiece without rotating. Useful for guiding taps and smaller workpieces On rack on splashback
2mt half dead centre.jpg Half dead centre on 2MT spindle Work holding Small dead centre with part of the side ground away to allow a tool to get close to the end of the workpiece On rack on splashback
2mt reducer.jpg 3MT to 2MT Sleeve Work holding Used to fit 2MT tools into our 3MT tailstock. We have a number of these available. In Black metal cabinet near tailstock, top drawer
M300deadcentre.jpg Dead Centre on 5MT Sleeve Work holding Used in head for turning between centers in conjunction with catch plate and dogs In Black metal cabinet near tailstock, top drawer
M300tapguide.jpg Spring loaded tapping guide Tool holding Assists in accurate starting of taps into concentric holes In Black metal cabinet near tailstock, top drawer
M300dialind.jpg Dial indicator on magnetic Base General For accurately centring work and for general maintenance tasks In Black metal cabinet near tailstock, top drawer
M300LEDLamp.jpg LED lamp on magnetic base General Lighting up work! On lathe
M300oilcan.jpg Small red oil can Consumable Contains ISO-68 lubricating oil to maintain the lathe, not to be used as cutting fluid Tool-tray on Lathe
File:M300CT90.jpg White squeeze bottle Consumable Contains cutting fluid for use when turning, currently filled with CT-90 fluid suitable for use on all metals, use often but sparingly Tool-tray on Lathe
M300dieholder.jpg Floating Die-holder set Tool Holding Holds dies to allow accurate production of externally threaded parts In Black metal cabinet near tailstock, third drawer
M300bedprotect.jpg Bed Protector General Used to protect the bed from damage if a chuck is dropped while changing and to shield it from abrasive particles when polishing a workpiece On wall above lathe

Planned Upgrades

Parts and upgrades that are planned/Budgeted/Purchased for in the near future

  • Induction card reader
  • 2-Axis DRO
  • Machining assistance touchscreen terminal
  • Proper oil drain tap for main gearbox, Steve-R to make

Lathe Caretakers


The following people are able to provide inductions on the metal lathe

Name/Contact Induction levels provided Notes
Steve-R 1,2,3
Ian-P 1 Only does 1-to-1 sessions
Arthur-P 1 Currently on haitus, busy being a pirate
James-M 1


The following workshops are available that heavily feature the metal lathe


These are the people who look after and repair the lathe, they're the ones to contact if there's any problems with it

Name Notes

Recent Changes

If you make any non-trivial changes to lathe or perform maintenance please note it here, delete records older than 1 yr

  • Coolant level sensor fitted. Stever (talk) 19:11, 28 June 2020 (UTC)
  • Deep clean and re-lubricate all ways Stever (talk) 17:29, 16 May 2020 (UTC)
  • New apron oil seal fitted Stever (talk) 15:11, 25 October 2019 (UTC)
  • New Multifix toolpost fitted, new tools are on the way - Stever (talk) 17:55, 28 August 2019 (UTC) & JMF

Image Gallery

Please feel free to add to this gallery if you have interested photos of the Lathe in use.