508
S. K. Sinha et al.
drilled for holes of 10 mm. All are intended to hold bolts. Drilling was done in step
wise manner using drill bits of intermediate sizes first, and all the holes were made
in bench drill using HSS drill bits.
4.7 Boring
Sprockets of 37 mm diameter has internal diameter of 10 mm, but minimum internal
diameter of pillow block bearing and take up bearing available was 12 mm according
to the standards. So, four sprockets needed to be bored on lathe to 12 mm. Likewise,
sprockets of 106, 125, and 200 mm were bored according to respective internal
diameters available for bearings.
4.8 Welding
The square pipe sections of required length were then positioned as required and
tack welded with precision, and after each joint was tack welded, it was reinforced
with the final welding. It was done using horizontal arc welding by keeping current
between 75 and 90 A and voltage ranging between 13 and 18 V. Electrode taken was
of 3.15 mm diameter.
5 Conclusion
Demand for roti in Indian thali is irreplaceable. The amount of time it requires
to bake is also considerable especially in institutes or some special events. The
problems associated with baking roti in larger number like need for more human
force, unhygienic food, hazard, and skill requirement will be solved. The automatic
roti maker will not be bulky and affordable. It will produce 480 rotis/h which can
easily meet the requirement of small gatherings and functions.
The roti will be baked in LPG flame which gives it the taste of traditional one made
at home. The mechanism used is simple and cost effective. Further, the provisions
for making thepla and paratha can be added to give more dimensions to the machine.
Another setup for preparing the dough can also be added in the machine in further
phase of fabrication.
Due to current COVID-19 lockdown, the final fabrication can only be partially
completed.
Acknowledgements We are thankful to SSIP cell, IITRAM for providing us the funds for this
project.
S. K. Sinha et al.
drilled for holes of 10 mm. All are intended to hold bolts. Drilling was done in step
wise manner using drill bits of intermediate sizes first, and all the holes were made
in bench drill using HSS drill bits.
4.7 Boring
Sprockets of 37 mm diameter has internal diameter of 10 mm, but minimum internal
diameter of pillow block bearing and take up bearing available was 12 mm according
to the standards. So, four sprockets needed to be bored on lathe to 12 mm. Likewise,
sprockets of 106, 125, and 200 mm were bored according to respective internal
diameters available for bearings.
4.8 Welding
The square pipe sections of required length were then positioned as required and
tack welded with precision, and after each joint was tack welded, it was reinforced
with the final welding. It was done using horizontal arc welding by keeping current
between 75 and 90 A and voltage ranging between 13 and 18 V. Electrode taken was
of 3.15 mm diameter.
5 Conclusion
Demand for roti in Indian thali is irreplaceable. The amount of time it requires
to bake is also considerable especially in institutes or some special events. The
problems associated with baking roti in larger number like need for more human
force, unhygienic food, hazard, and skill requirement will be solved. The automatic
roti maker will not be bulky and affordable. It will produce 480 rotis/h which can
easily meet the requirement of small gatherings and functions.
The roti will be baked in LPG flame which gives it the taste of traditional one made
at home. The mechanism used is simple and cost effective. Further, the provisions
for making thepla and paratha can be added to give more dimensions to the machine.
Another setup for preparing the dough can also be added in the machine in further
phase of fabrication.
Due to current COVID-19 lockdown, the final fabrication can only be partially
completed.
Acknowledgements We are thankful to SSIP cell, IITRAM for providing us the funds for this
project.