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Harrison M250 Lathe



Delivery Date: 25/11/2018
Snagging list for the Harrison M250

Introduction

The Harrison M250 lathe (also sold as Colchester Bantam with a different gear change and control lever layout) was designed to appeal to schools, training establishments, repair shops and those needing a strong, properly-built but compact lathe for light production work.
The M250 is a full-function machine capable of the entire range of turning operations, and through the available range of accessories its scope and versatility can be increased even further. Quality, reliability and response make it one of the most outstanding lathes of its kind especially in industry, the toolroom, training and secondary and tertiary education.

  • Easy to understand headstock mounted speed, threading and feed charts
  • Smooth power transmission through a twin vee belt drive and induction hardened and ground headstock gearing
  • Large saddle and slide bearing areas for precision and long life
  • Deep section top slide with dovetail guides and gib strip adjustment
  • The combination box section cast iron bed and rigid steel base provides an incredibly strong structure
  • A huge selection of accessories are available

Detailed review and discussion of Harrison M series lathes.

Induction to use the Lathe

Only paid up members of Bristol Hackspace may use the lathe or receive an induction.
If you are interested in becoming inducted please read the Harrison N250 Manual and the induction guidelines (TBA)

Link to induction notes, TBA.

Specification

  • 290mm Swing Over Bed
  • 180mm Swing Over Cross Slide
  • 525mm Between Centers
  • 35mm Spindle Bore
  • No. 3 D1 Camlock nose
  • 40-2000rpm Spindle Speeds
  • Quick change gear head
  • 0.9kW Motor
  • Metric and imperial thread cutting
  • Power feed on main carriage and cross slide


Attachments

  • 5“ 3 jaw chuck
  • 6” 4 jaw independent chuck
  • 6“ 4 jaw self aligning chuck
  • Traveling steady
  • Fixed steady
  • Rotating center
  • Keyless chuck
  • Quick change tool post
  • Digital XY readout


Tooling Wishlist

The lathe is new so we have minimal tooling for it.
This is a wish list of ESSENTIAL TOOLING to get us going that will eventually become a purchase proposal when the time is right.

  • Vernier calipers
  • HSS blanks
  • Big drill bits
  • Big boring bar
  • Lubricant - all detailed in the manual
  • Centering drill set
  • Carbide tipped tools
  • Carbide tipped boring bar set
  • Swarf brush
  • Swarf bin


Manual

Manual and other documents.
PDF of Harrison M250 Manual

Safety

Safety must be adhered to at all times.

Maintenance

Daily maintenance is to be carried out on each occasion the lathe is used.

Maintenance other than daily maintenance may only be carried out by personnel in the maintainers list.
In the event of anything urgent please contact someone from the committee.
In the event of the lathe being unsafe to use clearly mark it explaining why to warn other members and alert the committee on committee@bristol.hackspace.org.uk

Inducted Hackspace members

You may not use the lathe if you have not been inducted and are not on this list.

Name Inducted Date Inducted By
null 20XX-XX-XX null

Authorised Inductors

Persons not on this list may not carry out inductions. Friendly help and helpful advice is encouraged.
Contact for induction via members forum.

Name Inducted Date Inducted By
null 20XX-XX-XX null

Authorised Maintainers

Persons not on this list may not carry out modifications or maintenance not on the daily check list.

Name Inducted Date Inducted By
null 20XX-XX-XX null
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