Member postings for jacques maurel

Hello
Thank you for your interest in my articles about bansaw blade tensioning. Here are the ref for my articles about this subject :

Engineering in miniature june 2016 issue: A tensiometer for a bandsaw blade.

Engineering in miniature march 2017 issue: A spring tensioner for a bandsaw blade.

Notes:
The tensiometer works for any blade section, but you must tension from the slackened state and you don’t know the actual tension when time lasts.
The spring tensioner must be dedicated to the blade section, but you know the actual tension in the blade.

A related article: for hacksaw blade tensioning:

Engineering in miniature october 2018 issue: Improving a hacksaw.

A related article about bansaws:

Engineering in miniature december 2014 issue: Magic stick for bandsaw alignment.

To know all my publications, go to my website :
**LINK**

Hello

do you know in which issues is the "year index" for model engineer magazine, this for the years 2019/20/21.

Thank you

JM

Happy new year and best machining wishes with bearing needles in 2023

J Maurel

customized caps for his bike tyre valves.

The tensiometer described in MEW319 issue is inspired from the one I described in EIM (engineering in miniature) june 2016 issue. Some more info given in "scribe a line" of MEW 320 issue.

In the march 2017 issue of EIM I've described a spring tensionner (using belleville washers) the advantage is that you can see the actual tension, inconvenient, it must be dedicated for a blade dimension.

In the dec 2014 issue of EIM a "magic stick" is described for bansaw aligment.

A plain extensometer can be seen in my video about "tension test": http://youtu.be/JU0LbZbTMd

JM

Happy new year and best machining wishes with bearing balls in 2022 for quick moving!
JM

Have a look at this article: Model Engineer- N° 4480 (apr 2014) : Threaded collets

regards

J M

Hello

I've sent a detailed article to Neil (MEW editor) on how to machine these tip holders and others, just wait for the publication.

JM

Have a look at my article: "Achieving accurate coaxial chucking", model engineer workshop issues 292 & 293 april and may 2020.

JM

Thank you

Video about tool making in the past:

https://www.youtube.com/c/KenHawleyCollectionTrust/videos

JM

Happy new year and best machining wishes with center drills this year!

JM

Theses threads are from the SI standard used before the ISO one.
J M

Hello

Have a look at my article in MEW:N°268 & 269 (june and july 2018) "A switch off attachment for parting off safely"

J Maurel

Videos for the quarantine:

**LINK**

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Hello

Read my article in MEW issue 292 about adjustable chucks, more will be said in the following issue about the tightening screws.

J Maurel

Have a look at the video: **LINK**

J Maurel

Bouncing forward in 2020 with compression springs!

Happy new year.

J Maurel

Be careful as the number of divisions must be a submultiple of the number of teeth!

JM

Note: the number of divisions on the disc must be a submultiple of the number of teeth.

20 teeth is possible with 4 divisions (5 teeth between divisions so 30mm) for the pitches submultiple of 30mm. 6 divisions for 30 teeth. The number of teeth (20 or 30) is determined by the TDI braket position.

20 teeth with 5 divisions for pitches sub of 24 (12, 8 and 4mm)

21 teeth is possible with 3 divisions (7 teeth between divisions so 42mm) for the pitches submultiple of 42. 6 divisions for 42 teeth.

22 teeth with 2 divisions for pitches sub of 66.

26 teeth with 2 divisions for pitches sub of 78.

I've written an article on the subject for ME but it's not yet published.

you can use a module 2 mm. 30 teeth for pitches submultiple of 10mm (5, 2.5, 1.25, 0.5mm); 42 teeth for pitches submultiple of 7 (3.5, 1.75).

JM