The document presents a project on developing a portable mini lathe. A group of 6 students led by Sujith R. are developing the lathe under the guidance of their professor. The portable mini lathe will address issues with conventional lathes like bulkiness and fixed location. It will allow for turning, grinding, cutting, and polishing of wood and light metals within a workshop. The lathe's key components include a hand drill as the headstock, wooden bed and tailstock, and scissor jack mechanism for compactness. The lathe is designed for portability, low cost, and enabling basic machining by carpenters using workshop tools.

1. PROJECT PRESENTATION

2. PORTABLE MINILATHE
GROUP-3
GROUP MEMBERS
Sujith R (Team Leader)
Jerrin Bose
Nikhilesh K
Sanoosh C
Santhosh Kumar N
Vineeshkumar KV
Guided By, MANU M JOHN
Asst.Professor
Dept.of Mechanical Engg.
PORTABLE MINILATHE

3. • It is that of all the machines employed by the
mechanic to aid he in his work
• The lathe holds the honor of having been the
first machine tool. From it all other machine
tools have been developed as they are.
PORTABLE MINILATHE

4. • Length of the bed
• Width of the lathe bed
• Height of centers over the bed
• Distance between centers
• Swing diameter over the bed
• Over the carriage
• Max diameter of all through spindle
• Power of the motor
• Modes of drives
• No. of spindle speed
• Lead screw details
• Weight and floor space required
PORTABLE MINILATHE

5. • Types of Lathes
• Speed lathe
• Engine lathe
• Bench lathe
• Tool room lathe
• Semi automatic lathe
• Automatic lathe
PORTABLE MINILATHE

6. • Producing cylindrical jobs
• Turning
• Taper turning
• Drilling
• Boring
• Knurling
• Screw thread cutting
• Reaming
PORTABLE MINILATHE

7. • Lathe is known as the mother machine tool
• It is one of the most widely used machine
tools in all parts of the world.
• An engine lathe is the most basic and simplest
form of the engine lathe
• Engine lathe derives it’s name from the early
lathes, which obtained their power from
engines
PORTABLE MINILATHE

8. • Bulky
• Placed at a fixed place
• Maintenance
• Huge space required
• High initial cost
PORTABLE MINILATHE

9. • Concept
The portable mini lathe is a simplest wood
turning machine having simple constructional parts
which favors less effort to operate.
PORTABLE MINILATHE

10. • Need
The conventional lathe machines are suffering
from its bulkiness to carry it to preferred workspace.
We need to admit the workshop for even light
operations like internal design parts, modification
etc.
The PORTABLE MINI LATHE is specially designed
for carpenters to carry light operation within his
workspace. The operator can carry the machine itself
anywhere as he porting his tools.
PORTABLE MINILATHE

11. • Portability
• Lathe performance within the workspace
• Lathe operations with the tool available the
carpenter
• Feasibility multiple operations
• Machining of light metals
• Economic
PORTABLE MINILATHE

12. PORTABLE MINILATHE
The main parts incorporate the PORTABLE MINI
LATHE are,
•Headstock (Hand drill)
•Wooden bed
•Head stock carrier
•Hand drill support
•Wooden tailstock

13. The main parts incorporate the PORTABLE MINI
LATHE are,
•Tailstock guide way
•Stud
•Clamp
•Hinge
•Screws
•Bolts
•Washer
•Chisel
PORTABLE MINILATHE

14. • Portable mini lathe uses
hand drill as headstock
• It can be driven by
minimum power
• Three wooden clamp is
used to fix the drill
• It is light and compact
to assemble and
disassemble
PORTABLE MINILATHE

15. SPECIFICATIONS
• Type – portable
• Net weight of the drilling machine – 1.4 kg
• Speed at no load – 22oorpm
• Power – 450W
PORTABLE MINILATHE

16. • Jack enables to facilitate
minimum pitch to
adjust the height
• Can fix easily
• Rigid support
PORTABLE MINILATHE

17. • It made up of
combination of wooden
block and steel ball
bearing
• The dead centre made
up of aluminum
PORTABLE MINILATHE

18. Dimension
• Foundation
150x120x18mm
• Wooden
block65x65x125mm
PORTABLE MINILATHE

19. PORTABLE MINILATHE
• Mini lathe uses a
wooden bed which
interns reduce the
weight as compared to
metal
• Slot provided ensures to
and fro motion of
tailstock

20. Dimension
PORTABLE MINILATHE
• Lathe bed- 2(550x320x18)
• Slot - R8x350

21. PORTABLE MINILATHE
• Guide way which guides
the tailstock to and fro
movement accurately
• It is made up of
stainless steel C-
members, that is
obtained by cut out one
side of square member.

22. Dimension
• Length-450mm
• Width -20mm
• Height-12mm
PORTABLE MINILATHE

23. PORTABLE MINILATHE
NUT&BOLT
A total 29 nuts and bolt are used to fix the machinery.
Fix the lathe bed to the stand - M10
Fix the scissor jack to the bed - M10
Fix the headstock carrier to the jack -M10
Fix the tailstock to the bed - M12
Fix the hand drill to the carrier -M6

24. PORTABLE MINILATHE
Wooden clamp fix the hand drill
properly to the hand drill carrier
Dimension
Length -120mm
Breadth-60mm
Height -20mm
Radius -25mm

25. PORTABLE MINILATHE
Dimension
Structural member -24mm x 24mm x 2mm
Length -1100mm
Breadth -320mm
Height -800mm

26. • Metal/ wood cutting; metal and the wood as
required dimension were cut with the cutter and the
jig saw at the mechanical workshop.
PORTABLE MINILATHE

27. WORKSHOP FACILITY USED
• Drilling; holes are drilled on the metal as well as the
wood at the lathe workshop with the radial drilling
machine and the hand drill
PORTABLE MINILATHE

28. WORKSHOP FACILITY USED
• Grinding; cut structural members were grind at the
mechanical workshop.
PORTABLE MINILATHE

29. PORTABLE MINILATHE
Welding; the structural members were
welded together to build the stand and
plates were welded to the scissor jack to
get it fixed on the bed. The tailstock
centre was welded the ball bearing then
the clamp
WORKSHOP FACILITY USED

30. WORKSHOP FACILITY USED
• Fitting; the tailstock centre produced by grinding and
filing the aluminum rod of diameter 15mm.
PORTABLE MINILATHE

31. WORKSHOP FACILITY USED
• Carpentry ; shaping the wood and cut the slot on the
lathe bed is done at the carpentry
PORTABLE MINILATHE

32. PORTABLE MINILATHE

33. • Mobility
• Perform every operations , considering with
conventional lathe
• Simple and compact
• Easy to handle
• No need extra manpower
• Very cheap
• Less power consumption
• Fixed anywhere

34. • Difficult to perform large workpiece
• Skilled labours required
• Vibration problem

35. • Perform operations on wood and aluminium
• Power available is limited

36. • Perform operations such as,
1. Turning
2. Grinding
3. Cutting
4. Polishing
• Applicable in carpentry workshop.

37. • Portability
• Lathe performance within the workspace
• Operations with tools available the carpenter
• Economy
• Feasibility of multiple operations
1.Turning
2.Grinding
3.cutting
4.polishing

38. SL
NO
DESCRIPTION QTY. COST
1 HAND DRILLING MACHINE 1 2500
2 PORTABLE GRINDING MACHINE 1 2000
3 HAND SAW 1 500
4 SCISSOR JACK 1 600
TOTAL 5600
(a)Estimating of machinry and equipment cost
cost of machinery

39. COST OF EQUIPMENT
S
L
N
O
DESCRIPTION
QTY COST
1 STEEL RULE 1 30
2 FLEXIBLE TAPE 1 100
3 SCREW DRIVER 1 50
4 FLAT FILE 1 100
5 C CLAMP 1 120
6 HAMMER 1 100
7 PUNCH 1 40
8 SPIRIT LEVEL 1 150
9 GRINDING WHEEL 1 60
1
0
CUTTING WHEEL 3 60
TOT
AL
810

40. RAW MATERIAL COST
SL
NO
DESCRIPTION QTY COST
1 ANGLE IRON 6m 1800
2 WOOD 6554cc 800
3 STAINLESS STEEL 400g 200
4 MISCELLANEOUS - 300
TOTAL 3100
GRAND TOTAL
Cost of machinery 5600
Cost of equipment 810
Raw material cost 3100
=5600+810+3100
=9510 INR

41. • Prototype of minilathe with simple mechanism
driven by drilling machine
• Use of scissor jack mechanism convenient to
compact the product and fulfil our needs
• It reduces the capital cost
• Fabricated devices are portable and easily assemble
and dismantle
• It helpful to ordinary workers to conduct machining
effectively

42. • Production technology by OP KHANNA (YMCA
institute Haryana)
• Holzapffel,charles Turning and mchanical population
vol.5(MIT-US)
• Sparey lawrence,The amatures lathe special interest
model book
• MC shaw, Metal cutting principles Oxford university
press london

43. PORTABLE MINI LATHE
PORTABLE MINI LATHE

44. PORTABLE MINILATHE
Assoc. Prof. Sri. Binulal B. R, (Head of the Department of
Mechanical Engineering)
Asst. Prof. Sri.Anuradh T R (Department of Mechanical
Engineering )
Sri. John K.Y. (Trade instructor, Department of Mechanical
Engineering )
Sri. Manoj Kumar V. (Demonstrator, Department of Mechanical
Engineering )
Special thanks to,

45. PORTABLE MINILATHE
THANKS….