Additional screw cutting quick change gearbox

Finally made this very important lathe modification.

This lathe (G0602 type) already has a built-in gearbox for all metric pitches from 0.25 to 3.5 millimeters. Also all imperial pitches in the range 8 to 72 TPI, but I don't need them. But to do that and also to change to power feed pitches it is required to use change gears. Not too complicated, but it is time consuming.

27-tooth and 60-tooth change gears is the option which gives the finest pitches. Nine of them. Combined with 5 different pitches from new gearbox it makes 45 pitches. As it can be seen from threads @ feeds chart there are all metric pitches in the range 0.25 to 3.5 mm available without use of any tool. Pitches can be changed in a few seconds

Materials used:

steel plate 10mm, 12 mm
steel round pipe 3" dia
various gears 45# steel
stainless steel shafts dia 14mm
6201 ball bearings
4 washers (made from 1 HRK coins) spacers between gears
Aluminum 6061

https://www.youtube.com/watch?v=LEYRAj7WWyo

Cheers
LMMasterMariner

Welcome back again, with yet another amazing build, LMM!
Personally, I had to run the video at 50% speed, and stop occasionally to try grasping your design considerations and set-ups!
Well worth the time, though and some really good food for thought for me!
Next tool of the week, perhaps?:)

All the best!
Johan

Thanks for nice words, DIYSwede,

Yes. It is better to watch some parts with reduced speed. I wanted to make video clip shorter than 10 minutes and some parts, like making of the shaft, are even running at 12 x speed.

Cheers
LMMM

Thanks LMMasterMariner! We've added your Quick Change Lathe Gearbox to our Lathe Accessories category,
as well as to your builder page: LMMasterMariner's Homemade Tools. Your receipt:

<div id="blocks"> <div class="block b1 pngfix"> <div class="bimg"> <div> <a href="https://www.homemadetools.net/homemade-quick-change-lathe-gearbox"> <img src="/uploads/251956/homemade-quick-change-lathe-gearbox.jpeg"/> </a> </div> </div> <div class="head pngfix"></div> <div class="left pngfix"></div> <div class="right pngfix"></div> <div class="blockover b1 pngfix"> <div class="title"> <a href="https://www.homemadetools.net/homemade-quick-change-lathe-gearbox">Quick Change Lathe Gearbox</a> <span> by <a href="https://www.homemadetools.net/builder/LMMasterMariner">LMMasterMariner</a></span> </div> <div class="tags">tags: <a href='https://www.homemadetools.net/tag/lathe'>lathe</a>, <a href='https://www.homemadetools.net/tag/gears'>gears</a> </div> </div> </div> </div>

5 Attachment(s)

Last moment update

Congratulations LMMasterMariner - your Quick Change Lathe Gearbox is the Homemade Tool of the Week!

A very nice lathe upgrade, like several others of yours that have won this award in the past.

Some more nice builds from this week:

Odd Part Chuck Holding Method by Frank S
Lathe Oiler by Frank S
Adjustable Swage Handle by Philip Davies
Log Splitter by darus627
Single Point Gear Cutting Tool by Mr. Factotum's Workshop
Bench Grinder Modification by Tuomas
PPR Pipe Welder by Mr.DK DIY
Grow Beds by Frank S
Puukko Knife by SteelCraft
Scale Model Shaper by Rustinox
Portable Password Vault by rgsparber
Disc Sander Mount by Tuomas
Rebar Cutter by liberal
Survival Saw by Mazay
Adjustable Marking Gauge by orioncons36

LMMasterMariner - you'll be receiving a $25 online gift card, in your choice of Amazon, PayPal, or bitcoin. Please PM me your current email address and gift card choice and I'll get it sent over right away.

This is your 7th Homemade Tool of the Week win. Here are all of your Homemade Tool of the Week winning tools. Congrats again :thumbsup:

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