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It has been a busy couple of week but I wanted to be able to drill small holes with very small drills in metal using the 3/32 shank and 1/8th shank drills.

After looking around at what is available I decided I would build my own.

 

It went through a number of iterations during the build

 

Capture2011.thumb.JPG.0aa6a8369c502be94f1b1a00a16a92ed.JPG

The first version had a round quill but i was not happy with it so went for a square one with a dovetail slide.

 

Capture2012.thumb.JPG.af9ebd9396425891c331efe3add4e0ff.JPG

The other thing i was not happy about was the mistake of putting the rack at the front, this created an issue of direction so added a second pinion, needless to say is was beginning to feel like a rabbit hole that was getting deeper.

 

This is the current state of the press the motor is a 9v dc one and seems to have enough Jam for the tiny drills.

 

Capture2042.thumb.JPG.ffec1423113d82f4993ddab7de9ee87b.JPG

 

Capture2043.thumb.JPG.863b2ad3ddbb20989fccc05d90abaa06.JPG

 

I have been drawing it up as a design build and making the changes as things change.

 

Michael

 

 

Current builds  Bristol Pilot Cutter 1:8;      Skipjack 19 foot Launch 1:8;       Herreshoff Buzzards Bay 14 1:8

Other projects  Pilot Cutter 1:500 ;   Maria, 1:2  Now just a memory    

Future model Gill Smith Catboat Pauline 1:8

Finished projects  A Bassett Lowke steamship Albertic 1:100  

 

Anything you can imagine is possible, when you put your mind to it.

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Very nice Michael, and it does EXACTLY what you want it to do with precision (and a lot cheaper than buying one also I bet :))

 

cheers

 

Pat

If at first you do not suceed, try, and then try again!
Current build: HMCSS Victoria (Scratch)

Next build: HMAS Vampire (3D printed resin, scratch 1:350)

Built:          Battle Station (Scratch) and HM Bark Endeavour 1768 (kit 1:64)

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Guest Riccardo1966

Very impressive, looks much better than anything I have seen commercially. I have been looking at the proxxon ones and they simply don't compare.

Regards Richard

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Hello Michael

 

I thought you might like more detail about my approach. Like you I didn't like the commercially available units.

 

The press was designed around my micro drill (now very old - at least 25 years).

 

DSC05016.thumb.JPG.2ee44b9d9cc37a9a754d9931797a2939.JPG

The base is the face plate off the lathe - rarely used with the lathe.

 

The main column is the central rising shaft from a broken camera tripod ( the legs are still waiting to be made into a 3rd hand ). If you look you will see the pinion gear which engages the rack. It was originally part of the hand lever which raised and lowered the rack.

 

The horizontal plates at the top and bottom of the rack are rigidly attached to the rack and they carry, and are rigidly attached to, the vertical bar which sits to the right of the rack. This forms a very rigid structure on to which the sliding frame which carries the drill sits.

 

DSC05017.thumb.JPG.bc58b6f4b11df56700ae26991cda2385.JPG

 

What is a bit odd about this arrangement is that the 3 armed handle for raising and lowering the drill actually goes up and down with the drill.

 

The photos are probably clearer than my explanation. 

 

DSC05018.thumb.JPG.8fe274bca35e1e3bbacaa5b1f0f34af5.JPGDSC05019.thumb.JPG.0a4799eaef7a8b012f88a65f111af737.JPGDSC05020.thumb.JPG.262cbc596bcfefd4bd9652e1de99b67c.JPGDSC05021.thumb.JPG.4ab75ae738a8034d221992c483bbf398.JPGDSC05022.thumb.JPG.dee853603cea3ab854d9d7a2e4f451c9.JPG

 

Interesting how the same problem can spin off many solutions. Not quite as elegant as yours but it works and appeals to my need for recycling.

 

Keith

 

Current Build:-

Cangarda (Steam Yacht) - Scale 1:24

 

Previous Builds:-

 

Schooner Germania (Nova) - Scale 1:36

https://modelshipworld.com/topic/19848-schooner-germania-nova-by-keithaug-scale-136-1908-2011/

Schooner Altair by KeithAug - Scale 1:32 - 1931

http://modelshipworld.com/index.php/topic/12515-schooner-altair-by-keithaug-scale-132-1931/?p=378702

J Class Endeavour by KeithAug - Amati - Scale 1:35 - 1989 after restoration.

http://modelshipworld.com/index.php/topic/10752-j-class-endeavour-by-keithaug-amati-scale-135-1989-after-restoration/?p=325029

 

Other Topics

Nautical Adventures

http://modelshipworld.com/index.php/topic/13727-nautical-adventures/?p=422846

 

 

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Guest Riccardo1966

Until I had seen this thread I hadn't considered making my own but how easy to make without a milling machine etc?.

That looks good Keith.

Regards Richard

 

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Oh, Michael. You've been tinkering again! I had to smile, though.

 

I used to own a vintage Dumore sensitive drill press which I reconditioned. However, I never really used it, so sold it some years ago. Now, if it had been more like your design....

Be sure to sign up for an epic Nelson/Trafalgar project if you would like to see it made into a TV series  http://trafalgar.tv

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I'm beginning to think you need to start a tool company, Michael... :rolleyes:

Mark
"The shipwright is slow, but the wood is patient." - me

Current Build:                                                                                             
Past Builds:
 La Belle Poule 1765 - French Frigate from ANCRE plans - ON HOLD           Triton Cross-Section   

 NRG Hallf Hull Planking Kit                                                                            HMS Sphinx 1775 - Vanguard Models - 1:64               

 

Non-Ship Model:                                                                                         On hold, maybe forever:           

CH-53 Sikorsky - 1:48 - Revell - Completed                                                   Licorne - 1755 from Hahn Plans (Scratch) Version 2.0 (Abandoned)         

         

                                                                                                                                                                                                                                                                                                

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Beautiful work as usual, Michael.  You never cease to amaze me.  I agree with Mark, you need to come out of Retirement and start a tool company.

 

 

Bill

 

Current Build:

Kate Cory Scratch Built

 

Previous Builds:

Benjamin W. Latham Scratch Built

H A Parks Skipjack Scratch Built

Charles W. Morgan Model Shipways Kit

Rattlesnake Model Shipways Kit

Diligence Model Shipways Kit

 

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On 17.3.2017 at 0:23 AM, michael mott said:

It has been a busy couple of week but I wanted to be able to drill small holes with very small drills in metal using the 3/32 shank and 1/8th shank drills.

After looking around at what is available I decided I would build my own.

 

It went through a number of iterations during the build

 

Capture2011.thumb.JPG.0aa6a8369c502be94f1b1a00a16a92ed.JPG

The first version had a round quill but i was not happy with it so went for a square one with a dovetail slide.

 

Capture2012.thumb.JPG.af9ebd9396425891c331efe3add4e0ff.JPG

The other thing i was not happy about was the mistake of putting the rack at the front, this created an issue of direction so added a second pinion, needless to say is was beginning to feel like a rabbit hole that was getting deeper.

 

This is the current state of the press the motor is a 9v dc one and seems to have enough Jam for the tiny drills.

 

Capture2042.thumb.JPG.ffec1423113d82f4993ddab7de9ee87b.JPG

 

Capture2043.thumb.JPG.863b2ad3ddbb20989fccc05d90abaa06.JPG

 

I have been drawing it up as a design build and making the changes as things change.

 

Michael

 

 

Wow!

Michael now thats a fine tool, amazing how you are able to transfer your thoughts into smart toolery .....;)

Well done.

 

Nils

Current builds

-Lightship Elbe 1

Completed

- Steamship Ergenstrasse ex Laker Corsicana 1918- scale 1:87 scratchbuild

"Zeesboot"  heritage wooden fishing small craft around 1870, POB  clinker scratch build scale 1:24

Pilot Schooner # 5 ELBE  ex Wanderbird, scale 1:50 scratchbuild

Mississippi Sterwheelsteamer built as christmapresent for grandson modified kit build

Chebec "Eagle of Algier" 1753--scale 1:48-POB-(scratchbuild) 

"SS Kaiser Wilhelm der Grosse" four stacker passenger liner of 1897, blue ribbond awarded, 1:144 (scratchbuild)
"HMS Pegasus" , 16 gun sloop, Swan-Class 1776-1777 scale 1:64 from Amati plan 

-"Pamir" 4-mast barque, P-liner, 1:96  (scratchbuild)

-"Gorch Fock 2" German Navy cadet training 3-mast barque, 1:95 (scratchbuild) 

"Heinrich Kayser" heritage Merchant Steamship, 1:96 (scratchbuild)  original was my grandfathers ship

-"Bohuslän" , heritage ,live Swedish museum passenger steamer (Billings kit), 1:50 

"Lorbas", river tug, steam driven for RC, fictive design (scratchbuild), scale appr. 1:32

under restoration / restoration finished 

"Hjejlen" steam paddlewheeler, 1861, Billings Boats rare old kit, scale 1:50

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Hello everyone, thanks for the warm and encouraging remarks. The funny thing is that when I left school I started a tool-making apprenticeship but did not finish it for a number of reasons, not least of which the apprentices in the place I worked used us to do repetitive production work which was outside of the purview of learning, but served the management.

 

So here I am 50+ years later making tools.

 

I am happy building a few tools at a time the problem solving aspect of it keeps my mind active, and because all my tools are manual (no CNC) I find the concentration on each task sort of meditative and peaceful.

I have been struggling with a rather nasty cold/flue bug this past two weeks so working has been hard to do, but I have to keep going.

 

I have finished that main aspects of the micro drill and here are a few quick pictures of it. All that is left to do is to ad a small cable to the power tabs on the motor.

I added a second leaf spring to the quill and it is much more responsive.

 

IMG_2083x1024.jpg.102f905eac4f47eb58708258bf0d707f.jpg

The bar laying in front is a simple screwdriver that was an afterthought while trying to tighten the thumbscrews next to the pillar, so I slotted all of screws as well.

The XY table was challenging to say the least. I had to make a T slot cutter in order to be able to clamp the vice or remove it and clamp work to the table.

The XY table is held in place with the front brass thumbscrews and the holes in the base of the drill are spaced at 1 inch intervals front to back.

 

IMG_2086x1024.jpg.32623a6f10b42a4ab7b771f074aec46c.jpg

There are things that will no doubt need some form of improvement, and I will find out about them as I use it. The trickiest part is being able to use the dial indicators instead of micrometer dials on the XY table.

 

IMG_2087x1024.jpg.307bd26d73b535043bdd035cc5dfd973.jpg

The front dial is attached to a 1/2 inch square bar that clamps to the base and is very adjustable, the rear dial less so.

 

IMG_2085x1024.jpg.2d449f0987760dd708f851eabc93ea0b.jpg

 

I will take some better pictures in the daylight tomorrow.

 

Michael

   

Current builds  Bristol Pilot Cutter 1:8;      Skipjack 19 foot Launch 1:8;       Herreshoff Buzzards Bay 14 1:8

Other projects  Pilot Cutter 1:500 ;   Maria, 1:2  Now just a memory    

Future model Gill Smith Catboat Pauline 1:8

Finished projects  A Bassett Lowke steamship Albertic 1:100  

 

Anything you can imagine is possible, when you put your mind to it.

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That's not a tool, Michael.  It's a work of art.

Mark
"The shipwright is slow, but the wood is patient." - me

Current Build:                                                                                             
Past Builds:
 La Belle Poule 1765 - French Frigate from ANCRE plans - ON HOLD           Triton Cross-Section   

 NRG Hallf Hull Planking Kit                                                                            HMS Sphinx 1775 - Vanguard Models - 1:64               

 

Non-Ship Model:                                                                                         On hold, maybe forever:           

CH-53 Sikorsky - 1:48 - Revell - Completed                                                   Licorne - 1755 from Hahn Plans (Scratch) Version 2.0 (Abandoned)         

         

                                                                                                                                                                                                                                                                                                

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Wonderful work Michael, I really like your machine tools and would like to steal a couple of ideas for my own machines too.

I have an Optimum BF20 Vario milling machine, which I am very satisfied, but one thing bothers me when using tiny milling cutters or drill bits: The chuck which should be the most accurate available for this machine, is not running completely true. I have used also small collets which run better, but are not always convenient when changing the drilling bit, because at the same time you have to change the collet too. So my question: Which chuck are you using with your micro drill press, and how accurately is it running?

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Thanks for the compliments Mark and  Aviaamator

Good morning Moxis.

I like the machine that you have.

Regarding the collets and chuck I generally find that collets are more accurate than 3 jaw chucks. The reason I built this small drill press was to overcome the issue that you describe.

I began with the premise that very small drills come with one of two basic Shank Diameters   this is using the imperial system which is common for me the 3mm and 2.35mm shanks are the metric equivalents.

 

IMG_8609x1024.jpg.6dc0cf0e6b98b5286e19bedeeb50894f.jpg

 

The quill shaft is turned from some 3/8 (10mm) drill rod or tool steel I used the 4 jaw chuck to ensure that the rod was concentric with the Lathe axis. the chuck end was threaded using the lathe cutting a 3/8 x 24 thread (common thread size for a lot of small drill chucks) then the end was drilled and reamed to 1/4 inch for about 1 inch to accept one of the two collets one being 3/32  and the other 1/8th

 

IMG_8604x1024.jpg.9846c24b843d1739b1323b287cd570d4.jpg

 

The collets are turned from some 1/4 inch drill rod and the cross slit with the slitting saw with a .010" blade width. I made the collet to function in the same way that a Dremel collet works by being trapped at a dead end with the closing collar pinching down the conical section. The angle of the cone is 15 degrees I relieved the bottom end of the collets in order to give a little more spring to them. The collets were hardened and tempered for springs.

 

IMG_8603x1024.jpg.186fa4a2f808abb685bfbab257ebb264.jpg

 

The closing collar is made from some brass hex stock and threaded with a bottoming tap then the hole through the nose end was drilled out to .154" (#25drill) and them reamed with a cone reamer that was made to the same angle as the collet.

 

 

 

IMG_8606x1024.jpg.848587397fac1e8363d07aae995965ef.jpg

IMG_8607x1024.jpg.601a4d02003560d082f0cf786eb3880b.jpg

 

I have the option of using the 3 jaw chuck but most likely will only be using the 2 collets.

 

I have been able to drill with the smallest drill in this set through brass without any difficulty and the drills run true.

as soon as I get the wiring harness finished i will be doing a lot more testing.

 

I hope this answers your question.

 

Michael

Current builds  Bristol Pilot Cutter 1:8;      Skipjack 19 foot Launch 1:8;       Herreshoff Buzzards Bay 14 1:8

Other projects  Pilot Cutter 1:500 ;   Maria, 1:2  Now just a memory    

Future model Gill Smith Catboat Pauline 1:8

Finished projects  A Bassett Lowke steamship Albertic 1:100  

 

Anything you can imagine is possible, when you put your mind to it.

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Thanks Druxey, I did  quick test with the .05mm drill (.019") which is still pretty large as micro holes go but am pleased with the results in some .062" thick brass.

 

IMG_8610x1024.jpg.c7961289f2ee61775a42806aa7b8e58b.jpg

 

Capture8615.JPG.c8ad60c260d8e2449b300e8922b07008.JPG

 

4 holes spaced .040" apart now to finish the 1/8th collet so i can test the #78 drill bits.

 

Michael

Current builds  Bristol Pilot Cutter 1:8;      Skipjack 19 foot Launch 1:8;       Herreshoff Buzzards Bay 14 1:8

Other projects  Pilot Cutter 1:500 ;   Maria, 1:2  Now just a memory    

Future model Gill Smith Catboat Pauline 1:8

Finished projects  A Bassett Lowke steamship Albertic 1:100  

 

Anything you can imagine is possible, when you put your mind to it.

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That's one beautiful machine, Michael.

 

Bob

Every build is a learning experience.

 

Current build:  SS_ Mariefred

 

Completed builds:  US Coast Guard Pequot   Friendship-sloop,  Schooner Lettie-G.-Howard,   Spray,   Grand-Banks-dory

                                                a gaff rigged yawl,  HOGA (YT-146),  Int'l Dragon Class II,   Two Edwardian Launches 

 

In the Gallery:   Catboat,   International-Dragon-Class,   Spray

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Is it really a drill press? :) Looks like a mill, if the bearings are good enough to handle some lateral forces?

And it is a damn nice mill! There is something charming in a hand-made tools (not DIY level, but this work-of-a-true-craftsman level). There is always some story behind it, one looks on that drill/mill and visualises a man with a glass of whiskey, sitting next to the fireplace and drafting the sketches of the machine :) Cheers!

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Bob thanks

6 minutes ago, Mike Y said:

Is it really a drill press? :) Looks like a mill, if the bearings are good enough to handle some lateral forces?

Mike yes it really is only a drill press, I would have done a few things differently if it were going to be a mill, now that you mention it maybe down the road I might make a small mill.

 

Jack thanks

 

I just finished the 1/8th collet and set to drilling with the #80 drill bit the smallest I have 2 holes .040" apart The first attempt i was a bit too aggressive with the feed down and broke the drill in the hole.... could have been a faulty bit........;);)

 

The second bit worked well and I was much more gentle with the feed.

 

IMG_8617x1024.jpg.7b2274a3f5fd5b6e300c440bde0fc4e5.jpg

 

The thing I like the most about this drill is that I can barely hear it. I probably wont be drilling too many #80 holes but it is good to know that the drill can handle it.

 

Michael

 

 

Current builds  Bristol Pilot Cutter 1:8;      Skipjack 19 foot Launch 1:8;       Herreshoff Buzzards Bay 14 1:8

Other projects  Pilot Cutter 1:500 ;   Maria, 1:2  Now just a memory    

Future model Gill Smith Catboat Pauline 1:8

Finished projects  A Bassett Lowke steamship Albertic 1:100  

 

Anything you can imagine is possible, when you put your mind to it.

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Very nice Michael

 

Have you considered butchering some cheap digital callipers rather than using the dial gauges. I used to use dial gauges on the lathe longitudinal travel until I took the step of of bolting on a digital calliper. I wouldn't go back to a dial gauge now.

 

Sorry you are under the weather and hope you get well soon.

Keith

 

Current Build:-

Cangarda (Steam Yacht) - Scale 1:24

 

Previous Builds:-

 

Schooner Germania (Nova) - Scale 1:36

https://modelshipworld.com/topic/19848-schooner-germania-nova-by-keithaug-scale-136-1908-2011/

Schooner Altair by KeithAug - Scale 1:32 - 1931

http://modelshipworld.com/index.php/topic/12515-schooner-altair-by-keithaug-scale-132-1931/?p=378702

J Class Endeavour by KeithAug - Amati - Scale 1:35 - 1989 after restoration.

http://modelshipworld.com/index.php/topic/10752-j-class-endeavour-by-keithaug-amati-scale-135-1989-after-restoration/?p=325029

 

Other Topics

Nautical Adventures

http://modelshipworld.com/index.php/topic/13727-nautical-adventures/?p=422846

 

 

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1 minute ago, KeithAug said:

Have you considered butchering some cheap digital calipers rather than using the dial gauges.

Hi Keith I have one digital caliper and do not like it, I guess I am just an old analog guy, that said I do have three dial calipers fitted to my mill in the shop a cheap man's DRO

 

Of course I had to try the milling thing on it and immediately discovered that I do not have any means of locking the quill down nor do I have it set up to measure the depth. (I see another dial in the works)

I did at first made a swipe on the brass it worked but I did not want to go any further because of the aforementioned issue.

So a 1/4 inch scrap of Castello Boxwood was substituted...... I can see that I am going to have to make a couple of modifications to the quill control.

 

IMG_8618x1024.jpg.c4664ba42cc4163a73828d08a3da7e07.jpg

 

IMG_8619x1024.jpg.c7ecf0d1265e2a08524abe4dd93e7677.jpg

 

This is encouraging because I had not thought about it as a mill drill, only a drill.

 

Michael

 

 

Current builds  Bristol Pilot Cutter 1:8;      Skipjack 19 foot Launch 1:8;       Herreshoff Buzzards Bay 14 1:8

Other projects  Pilot Cutter 1:500 ;   Maria, 1:2  Now just a memory    

Future model Gill Smith Catboat Pauline 1:8

Finished projects  A Bassett Lowke steamship Albertic 1:100  

 

Anything you can imagine is possible, when you put your mind to it.

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Michel, it must be your age. We youngsters find the digital age a delight (so long as the batteries last!

Keith

 

Current Build:-

Cangarda (Steam Yacht) - Scale 1:24

 

Previous Builds:-

 

Schooner Germania (Nova) - Scale 1:36

https://modelshipworld.com/topic/19848-schooner-germania-nova-by-keithaug-scale-136-1908-2011/

Schooner Altair by KeithAug - Scale 1:32 - 1931

http://modelshipworld.com/index.php/topic/12515-schooner-altair-by-keithaug-scale-132-1931/?p=378702

J Class Endeavour by KeithAug - Amati - Scale 1:35 - 1989 after restoration.

http://modelshipworld.com/index.php/topic/10752-j-class-endeavour-by-keithaug-amati-scale-135-1989-after-restoration/?p=325029

 

Other Topics

Nautical Adventures

http://modelshipworld.com/index.php/topic/13727-nautical-adventures/?p=422846

 

 

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Oh Keith, I love the digital age as well.... where would photography be if we were still using developer trays... and the camera technology is amazing. I just like seeing the whole day on the clock face, I can look at it and know that there is about enough of the day left to get this done . 6:35pm just doesn't convey the sense of the day to me, same with the dials.

 

Off to add a little tweak to the quill.

 

Michael 

Current builds  Bristol Pilot Cutter 1:8;      Skipjack 19 foot Launch 1:8;       Herreshoff Buzzards Bay 14 1:8

Other projects  Pilot Cutter 1:500 ;   Maria, 1:2  Now just a memory    

Future model Gill Smith Catboat Pauline 1:8

Finished projects  A Bassett Lowke steamship Albertic 1:100  

 

Anything you can imagine is possible, when you put your mind to it.

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Michael I was taken aback by this latest work of yours. Working in wood is one thing but to have a given talent and skill to work in metal is something many of us do not have. Your designs, as well, are truly an inspiration. Appreciate your sharing this with all. You set a very high bar!!!!!

Joe

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Thanks Michael for a very comprehensive explanation about making your collet system. Your skills for metalwork are beyond mine, so I have to rely on the purchased equipment. I have a set of ER16 collets which are not used very much so far, but inspired about your writing, have to be considered seriously again. I think the key to resolve my problem is to use those drill bits with 1/4 " shanks, so that when changing the drill diameter, the shank of it and the collet remains unchanged. The smallest milling/drilling cutter I have is a 0,3 mm one, with which I have managed to drill a hole or two with very careful feeding of the quill, but breaking of the cutter has been very near due to the poor quality of the chuck.

Another story is the rotation speed of the machine, which in my case is also very limited, but would be the reason to adopt that high quality small dc motor, which rotates easily 50.000 or more rpm.

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This may not apply to your drill press, but then again it may, and for

a mill design even more so:

a limitation is throat depth - having more than you need is better than

not having enough.  Material cost, racking forces, and machine foot print

are practical restrictions, but I like to over engineer things.

 

NRG member 50 years

 

Current:  

NMS

HMS Ajax 1767 - 74-gun 3rd rate - 1:192 POF exploration - works but too intense -no margin for error

HMS Centurion 1732 - 60-gun 4th rate - POF Navall Timber framing

HMS Beagle 1831 refiit  10-gun brig with a small mizzen - POF Navall (ish) Timber framing

The U.S. Ex. Ex. 1838-1842
Flying Fish 1838  pilot schooner - POF framed - ready for stern timbers
Porpose II  1836  brigantine/brig - POF framed - ready for hawse and stern timbers
Vincennes  1825  Sloop-of-War  - POF timbers assembled, need shaping
Peacock  1828  Sloop-of -War  - POF timbers ready for assembly
Sea Gull  1838  pilot schooner - POF timbers ready for assembly
Relief  1835 packet hull USN ship - POF timbers ready for assembly

Other

Portsmouth  1843  Sloop-of-War  - POF timbers ready for assembly
Le Commerce de Marseilles  1788   118 cannons - POF framed

La Renommee 1744 Frigate - POF framed - ready for hawse and stern timbers

 

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And poof!, it's a mill also.  My mind is truly boggled.

Mark
"The shipwright is slow, but the wood is patient." - me

Current Build:                                                                                             
Past Builds:
 La Belle Poule 1765 - French Frigate from ANCRE plans - ON HOLD           Triton Cross-Section   

 NRG Hallf Hull Planking Kit                                                                            HMS Sphinx 1775 - Vanguard Models - 1:64               

 

Non-Ship Model:                                                                                         On hold, maybe forever:           

CH-53 Sikorsky - 1:48 - Revell - Completed                                                   Licorne - 1755 from Hahn Plans (Scratch) Version 2.0 (Abandoned)         

         

                                                                                                                                                                                                                                                                                                

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6 hours ago, Jaager said:

This may not apply to your drill press, but then again it may, and for

a mill design even more so:

a limitation is throat depth - having more than you need is better than

not having enough.  Material cost, racking forces, and machine foot print

are practical restrictions, but I like to over engineer things.

Jaager very true, but because i have a large mill drill that can do all that I need regarding the big stuff after all I used it to build this micro drill/mill.

 

I should have the quill adjusting control finished by the end of the day.

IMG_8621x1024.jpg.4d0844dfea6a4d6a95862e9f6c18dcd8.jpg

 

I copied the same mechanism that is used on my large mill pretty simple the toughest part was rooting through the gear scrap box to find a matching worm and gear.

 

IMG_8622x1024.jpg.c954ab3feb64e59b94bd825a8d01f2c4.jpg

 

IMG_8623x1024.jpg.1e2cff7f6040a69bdacec0ee7fb3ca0c.jpg

 

One minor irritation is that I followed the drawings I have been doing and the pivoting holder at the pillar end is a little too high because I had lowered the quill gear by .055" for some reason while doing that work but did not update the drawing so the shaft is not parallel to the horizontal when engaged. An easy enough fix it means having to cut the shaft of the pivot and shifting it by .055 vertically an re attaching it. so that the shaft is then offset from the centre. I had thought about turning a new one with the shaft offset, but cutting it off and resetting it is easier and since there is not a lot of strain on the part it makes sense rather than making a whole new piece.

 

Michael

Current builds  Bristol Pilot Cutter 1:8;      Skipjack 19 foot Launch 1:8;       Herreshoff Buzzards Bay 14 1:8

Other projects  Pilot Cutter 1:500 ;   Maria, 1:2  Now just a memory    

Future model Gill Smith Catboat Pauline 1:8

Finished projects  A Bassett Lowke steamship Albertic 1:100  

 

Anything you can imagine is possible, when you put your mind to it.

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