Project of the Month built by apointofview
Home Model Engine Machinist > The Tools and Tips > Tools > Bazmak-Making the acute tool sharpening system

Reply
 
Thread Tools Display Modes
Old 12-02-2016, 04:58 AM   #1
bazmak
BAZMAK
 
Join Date: Dec 2012
Location: adelaide south australia
Posts: 1,337
Liked 597 Times on 361 Posts
Likes Given: 532

Default Bazmak-Making the acute tool sharpening system

Just started my next project.I like the look of the acute system and with
information gleaned from Utube etc have sufficient info to make my version
However to play fair with Eccentric Engineering I have bought a set of drgs
for $35.Have made a start with the table as drgs have not yet arrived
Table calls for 150mm sq x 4mm m/s so I used 165mm sq x 5 thk S/S
4 brkts were fabbed from 25x3 angle and 3mm plt,Spacers 25dia alum
M6 allthread S/S screws and although I have ordered a few knobs and clamps
from China I also made 2 ms lever arm screws.Table works well.Now waiting for the drgs before deciding how far to go with the pantograph arm etc and what
changes if any to make.As usual flying by the seat of my pants


bazmak is offline  
7
People Like This 
Reply With Quote
Old 12-02-2016, 02:37 PM   #2
BaronJ
Grumpy Old Git.
 
BaronJ's Avatar
 
Join Date: Dec 2013
Location: Yorkshire, UK
Posts: 575
Liked 212 Times on 178 Posts
Likes Given: 62

Default

Hi Bazmak,

I wonder if you have seen this

Link <synthetica.eng.uci.edu/mechanicaldesign101/Kempe-Straight-Line.pdf>

I found it very informative !


__________________
Regards:
Baron.
BaronJ is offline  
3
People Like This 
Reply With Quote
Old 12-02-2016, 11:41 PM   #3
bazmak
BAZMAK
 
Join Date: Dec 2012
Location: adelaide south australia
Posts: 1,337
Liked 597 Times on 361 Posts
Likes Given: 532

Default Question on grinding wheels

I am a total novice but I need to look at buying a suitable grinding wheel
On ebay I have seen a 150dia x 25mm wide diamond lapidary wheel
Would this be suitable for light dressing of hss and carbide end mills etc
What grit would be suitable ?.I need to to remove a wheel and guard from my bench grinder and check what size I can physically fit.Any advise would be appreciated Regards barry
bazmak is offline  
 
Reply With Quote
Old 12-04-2016, 07:53 AM   #4
joco-nz
 
joco-nz's Avatar
 
Join Date: Feb 2016
Location: Wellington, New Zealand
Posts: 285
Liked 67 Times on 50 Posts
Likes Given: 53

Default

Very interested in this bazmak. I have a similar ryobi grinder but with the belt sander on the right hand side.

I have been toying with how to do do a better rest for the wheel side, even looking seriously at the setup described by Harold Hall in "Milling - A complete course" from the Workshop Practice Series #35.

What you are creating looks rather interesting and perhaps a little less involved than Harold's design.
__________________
James,
Wellington,
New Zealand
joco-nz is offline  
 
Reply With Quote
Old 12-04-2016, 09:53 AM   #5
BaronJ
Grumpy Old Git.
 
BaronJ's Avatar
 
Join Date: Dec 2013
Location: Yorkshire, UK
Posts: 575
Liked 212 Times on 178 Posts
Likes Given: 62

Default

Hi Baz,

I did a full build thread on another forum, unfortunately some of the pictures have gone AWAL. The cup wheel is a CBN, 100 mm one with a 20 mm bore and a 5 mm wide face 3 mm thick. It cost me about 10 from China. See <www.banggood.com> I'll see if I can find the PN later. Here it is.

*1 x 100mm Diamond Grinding Wheel Cup 180 Grit Cutter Grinder for Carbide Metal (966954) 9.06

Notice that it describes it as "Diamond" But it isn't. A Diamond one would be much more.

I used a motor from an old tumble dryer salvaged from the local scrapyard. From memory the dryer wasn't very old. I found out much later why I think that it had been scrapped. The drive shaft end had been sheared off.
__________________
Regards:
Baron.
BaronJ is offline  
2
People Like This 
Reply With Quote
Old 12-05-2016, 02:59 AM   #6
bazmak
BAZMAK
 
Join Date: Dec 2012
Location: adelaide south australia
Posts: 1,337
Liked 597 Times on 361 Posts
Likes Given: 532

Default

Drawings not yet arrived .Dont know exactly where I'm going yet its all
in my head.I plan to make the pantograph arm and guide rail so will look at
a tool holder to fit the rail.Will try and fit my er32 collet block even though I feel it may be too large.The block is 40mm sq and the nut 50mm dia so I machined a piece of angle to a nice sliding fit for the block and raised 5mm to clear the nut.I then made a shaped end plate drilled and tapped ME
5.5mm x 40 tpi.Made and fitted a brass adjusting screw but this was too slack so added a m3 grub screw with a nylon plug to tension the screw Looks and works well.Next step is to make a swivel plate to fit the intended guide rail
and mount the holder.Will have to wait and see its all in my head
bazmak is offline  
larry1 Likes This 
Reply With Quote
Old 12-05-2016, 05:51 AM   #7
goldstar31
 
Join Date: Feb 2010
Posts: 1,202
Liked 252 Times on 209 Posts
Likes Given: 405

Default

My copy of the drawings makes no provision for a collet chuck. The shown holder is from a block of 25mm MS Square.

So my thoughts( it's -1C here and freezing fog!), that I use either a Myford collet set or something with a 'Myford' set up.

Looking at 'Baron's' so called diamond disk, I have something similar but finer to hone tools after grinding. It came from Chronos and lives on the fabricated Stent.

I've been Grandchildren-y German Markets and Chinese lantern displays in Leeds but the holders for tools is either 25mm square or 25mm round.

So Barry might I mention this to remind myself as well to think about necessary alterations. I have a LOT of half inch lathe tooling and cutters of 1/2" mainly.

Hope that your drawings and my post to you finally arrive

Norman
goldstar31 is offline  
bazmak Likes This 
Reply With Quote
Old 12-05-2016, 08:21 AM   #8
bazmak
BAZMAK
 
Join Date: Dec 2012
Location: adelaide south australia
Posts: 1,337
Liked 597 Times on 361 Posts
Likes Given: 532

Default

Hi Norman,have you watched the various videos on the acute system on Utube
It shows an er16 collet holder for small dias,im hoping the er32 works for
some items if not I might buy a smaller collet set.The er16 is only $30
and its simple to make a dedicated square block.Nut is only $4.Next job is to make the guide rail
bazmak is offline  
goldstar31 Likes This 
Reply With Quote
Old 12-05-2016, 08:40 AM   #9
goldstar31
 
Join Date: Feb 2010
Posts: 1,202
Liked 252 Times on 209 Posts
Likes Given: 405

Default

Hi Barry

When and if Santa Claus finally calls at your door, you should have the drawings for the Brooks tool and cutter grinder which John Moran has mentioned. Whilst the rest of the drawings are of interest etc, the tool holder is a direct crib of the Quorn holder .

Believe me, I have one on my Quorn but obviously the Quorn runs on round bar whereas you will see the Brooks has a flat base. The rest is direct Chaddock.--as you will see- fingers crossed!

Sadly, I am still 'tied up' with a house sale and really little time to enjoy the simple pleasures of U tubes and whatever.

Meantime, it's bl**** cold at -1C and the dogs are frozen to the lamp posts. Never eat yellow snow

Norm
goldstar31 is offline  
 
Reply With Quote
Old 02-16-2017, 08:11 PM   #10
Stieglitz
 
Join Date: Aug 2012
Posts: 37
Liked 8 Times on 8 Posts
Likes Given: 8

Default

Hi Bazmak,
Was thinking about buying the kit,but instead I'll follow your build.
Allen.
Stieglitz is offline  
bazmak Likes This 
Reply With Quote
Reply


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Bazmak-Making simple cheap milling cutters bazmak Tools 6 04-17-2016 04:09 PM
making extra QCTP holders for a2z cnc system. MCRIPPPer A Work In Progress 8 09-18-2013 12:12 AM
Tool sharpening in the UK Blogwitch Links 0 03-15-2012 09:19 AM
Belt sharpening system Omnimill Tools 2 03-02-2012 03:31 PM
Thinking about making an oxy-hydrogen system for use in the shop. Kaleb Tools 24 05-31-2010 02:46 AM





Newest Threads






- Top - Member List