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Gathering thoughts/tools/materials for first mod

comis · 37 · 2200
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spam Offline comis

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Re: Gathering thoughts/tools/materials for first mod
Reply #30 on: May 11, 2019, 06:54:35 PM
Quote from: Dutch_Tooler on May 11, 2019, 06:49:21 PM
My bad experience was in trying to enlarge a hole to 1.5 mm, it must have been around 1.1 or 1.2 to start with. Drill bit broke off. The rolling process they used for that type of brass tube (3 mm outer diameter) must have caused a harder inner surface in places. I had some rod stock and that worked better ;)


Just for reference, I remembered reading Syph too were saying the same thing regarding drilling threaded tubes, and mentioning it might be easier to do it from a solid rod.
Merit Badges Participants shall carry and use one Soldier knife, the model of their choosing, for the duration of the 90 days and post a picture each day. Start a new thread and post a photo of an Executive or Director for thirty (30) consecutive days. In this challenge,  carry one(1) Pliers-based or Non-pliers multitool that we always have prejudice against, hate or even fear and post a picture everyday for 30 days Start a new thread and post a photo daily of any SAK 74mm or smaller ( you can switch it up daily ) for thirty (30) consecutive days. Participate in a Challenge thread and post a photo of a 'folding hunter' knife that isn't a Buck 110 for thirty (30) consecutive days. Participate in a challenge thread and post a photo of a Victorinox 91mm XAVT/XL/XLT, 111mm Workchamp XL, Wenger/Delemont S54/Tool Chest Plus or Wenger Giant for thirty (30) consecutive days Using EDC items randomly selected with a poker hand, post a photo of your EDC or a component of the EDC that got used during the course of the day for 4 weeks (or 30 consecutive days) Start a new thread and post a photo of the 111mm sak for thirty (30) consecutive days. Start a new thread and post a photo of the minimal sak (2 layers or fewer) for thirty (30) consecutive days. Participate and contribute in Challenge thread and post a photo of either an Axe, MT/Folding knife or Fixed blade (picked at the beginning of challenge) for thirty (30) consecutive days. Participate in a Challenge thread and post a photo of a Spyderco knife for thirty (30) consecutive days. Participate and contribute in Challenge thread and post a photo of a different blade each day for thirty (30) consecutive days. Participate  in Challenge thread and post a photo of a SAK Soldier for thirty (30) consecutive days. Participate in a challenge thread and post a photo of a SAK Cybertool (any variant), Swisschamp, Champion or Toolchest for thirty (30) consecutive days. Participate  in Challenge thread and post a photo of a Fieldmaster SAK for thirty (30) consecutive days. Start a new thread and post a photo of the discontinued sak/mt for thirty (30) consecutive days. Start a new thread and post a photo of a fixed blade for thirty (30) consecutive days. Participate  in Challenge thread and post a photo of a Explorer SAK for thirty (30) consecutive days. Start a new thread and post a photo of any gear for thirty (30) consecutive days during the MTo anniversary month. Start a new thread and post a photo of the leatherman (supertool, core, hacks) for thirty (30) consecutive days. Participate in the Challenge thread and post a photo of a Flashlight for thirty (30) consecutive days.

no Offline Vidar

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Re: Gathering thoughts/tools/materials for first mod
Reply #31 on: May 11, 2019, 09:17:34 PM
Quote from: Dutch_Tooler on May 11, 2019, 06:49:21 PM
My bad experience was in trying to enlarge a hole to 1.5 mm, it must have been around 1.1 or 1.2 to start with. Drill bit broke off. The rolling process they used for that type of brass tube (3 mm outer diameter) must have caused a harder inner surface in places. I had some rod stock and that worked better ;)

The biggest electrode I have is 2.5mm. I think these are made by extruding brass so they should be fairly even. I might drill a slightly bigger hole just to get a feel.

Quote from: comis on May 11, 2019, 06:54:35 PM
Just for reference, I remembered reading Syph too were saying the same thing regarding drilling threaded tubes, and mentioning it might be easier to do it from a solid rod.

Electrodes are not threaded in any way. Just a small smooth hole in the center.

Quote from: comis on May 11, 2019, 06:44:28 PM
I did some sourcing for brass tube that is 3.0mm OD and with threaded hole of 2.0mm (for M2 screws) in Chinese websites, but almost 99% of the time, the tube I see are not smooth outside, but with grooves.  And the real 'diameter' with grooves are usually around 3.2mm.  I have seen MTO member trying to smooth out the outside by sanding it down.  However, I just have no data whether those pivots did hold up in a long run.  Follow this link here.

That lead me thinking...what if the 'sanding' down is done by a lathe?  That's should be far easier to trying to tapper thread into a long rod, is it?

Making threads isn't actually difficult. Just make a nice setup and do the steps. Easiest way with a drill press might be to fasten a piece of wood or something. Then just don't move the wood for the following: Drill a hole of 3mm, make the wood hole clampable, stick the rod end in and clamp it, change drillbit to 1.6mm, drill hole, change drilltip over to tap and tap hole. That way they should all line up perfectly. (In a lathe just clamp it directly instead of in the wood).

That said removing some outer grooves could work fine as well. I would have gone for threading a rod I think, but then I again I do have tools handy.



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(Partial disclosure: I design tools for a living).
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us Offline SteveC

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Re: Gathering thoughts/tools/materials for first mod
Reply #32 on: May 11, 2019, 11:50:26 PM
 :nothingtoadd:

Looks like you are in good hands comis   :tu:
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spam Offline comis

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Re: Gathering thoughts/tools/materials for first mod
Reply #33 on: May 12, 2019, 06:59:19 AM
Quote from: SteveC on May 11, 2019, 11:50:26 PM
:nothingtoadd:

Looks like you are in good hands comis   :tu:


No doubt about that!  :cheers:


Next is to find myself a drill press for the 93mm mods, it may take sometime.  Meanwhile, I would have the hand drill soon which should allow me to do the 91mm mods(project A, Mountain Explorer), and practice on dummies/donors on cheap bids.  I will probably make a new thread if I run into any trouble, or share the DIY experience. :D
Merit Badges Participants shall carry and use one Soldier knife, the model of their choosing, for the duration of the 90 days and post a picture each day. Start a new thread and post a photo of an Executive or Director for thirty (30) consecutive days. In this challenge,  carry one(1) Pliers-based or Non-pliers multitool that we always have prejudice against, hate or even fear and post a picture everyday for 30 days Start a new thread and post a photo daily of any SAK 74mm or smaller ( you can switch it up daily ) for thirty (30) consecutive days. Participate in a Challenge thread and post a photo of a 'folding hunter' knife that isn't a Buck 110 for thirty (30) consecutive days. Participate in a challenge thread and post a photo of a Victorinox 91mm XAVT/XL/XLT, 111mm Workchamp XL, Wenger/Delemont S54/Tool Chest Plus or Wenger Giant for thirty (30) consecutive days Using EDC items randomly selected with a poker hand, post a photo of your EDC or a component of the EDC that got used during the course of the day for 4 weeks (or 30 consecutive days) Start a new thread and post a photo of the 111mm sak for thirty (30) consecutive days. Start a new thread and post a photo of the minimal sak (2 layers or fewer) for thirty (30) consecutive days. Participate and contribute in Challenge thread and post a photo of either an Axe, MT/Folding knife or Fixed blade (picked at the beginning of challenge) for thirty (30) consecutive days. Participate in a Challenge thread and post a photo of a Spyderco knife for thirty (30) consecutive days. Participate and contribute in Challenge thread and post a photo of a different blade each day for thirty (30) consecutive days. Participate  in Challenge thread and post a photo of a SAK Soldier for thirty (30) consecutive days. Participate in a challenge thread and post a photo of a SAK Cybertool (any variant), Swisschamp, Champion or Toolchest for thirty (30) consecutive days. Participate  in Challenge thread and post a photo of a Fieldmaster SAK for thirty (30) consecutive days. Start a new thread and post a photo of the discontinued sak/mt for thirty (30) consecutive days. Start a new thread and post a photo of a fixed blade for thirty (30) consecutive days. Participate  in Challenge thread and post a photo of a Explorer SAK for thirty (30) consecutive days. Start a new thread and post a photo of any gear for thirty (30) consecutive days during the MTo anniversary month. Start a new thread and post a photo of the leatherman (supertool, core, hacks) for thirty (30) consecutive days. Participate in the Challenge thread and post a photo of a Flashlight for thirty (30) consecutive days.

spam Offline comis

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Re: Gathering thoughts/tools/materials for first mod
Reply #34 on: June 23, 2019, 05:42:17 PM
Hi, all!

Just wanna share a quick update after all these posts.  :D


Finally gotten a drill press and am quite happy with it, nothing state of the art, but from a traditional well-known brand which has been making drill press for last 50 years.  In case anyone is curious, it's called the "Wesk Lake", model ZQ4113.  It's a 370W B-taper drill press and weights around 70kg.


For the past week or so, I had taken my own sweet time disassembling two SAKs from beat up lot sale--a 91mm Climber and a 93mm Alox (it's a weird combination of openers and large blade+electrician blade), making drawings and scanning the liners etc.  Up until then, everything was like dream, easy pants.

Then yesterday came, I started trying peening the 93mm...and that's where my nightmare begins.  There were three pins, and I figured I will try different hammers/concave punch/technique on different ones.  First pin I used a 10+ oz hammer just bent rather quickly. :oops:   


Second and thrid pins, I was counting on those "concave punches", and did mod them a little bit to fit the top shape of alox rivet.  But despite my best effort with a 2 and 4oz hammers, it felt like it is not moving any metal, and they were merely pushing very modest material down the side of pin, form a thin layer of muchroom.  The shape of it looks good from the outside, but upon drilling them out for inspection, the brass didn't fully fill up the countersink hole, so those concave punches seem like are only good for the cosmetic? :think:



Today, I figured I will redeem myself with doing something simpler, the 91mm.  I left around 0.5mm material above each side of the bushing, and just peen away with a 4oz ball peen hammer, then 2 oz hammer...everything went kinda well up until the final stage of peening away a very small play.  Then I realized I somehow managed to put the tools in the wrong order in the mist of all things.  No smurf, there I thought I gonna pretend I was half good at peening, and something else got the better of me.  No smurf!  :rant:



Everything looks orderly, on a jig... :woohoo:



Then this smurfing dumb move happens, and I was busying taking photo documenting my dumbness... :facepalm: :facepalm:



The small blade supposed to be closest to the liner...then the large blade with space.  I should have checked and played with all tools earlier, that might have prevented that. :bnghd:



A comparison between original pins(bottom two) and my own peened pins(top three), I was still about 5-10% away from no play, but at least happy to see the ball peen did move some material down into the countersink alright.



Few questions and observations after these peening practices:

1) How much material should I leave on each side of my 93mm alox before I start to peen?  I tried 1mm each side, it's kinda ok, but 0.7mm each side don't seem to have enough material to fill the countersink and form a decent 'dome' shape

2) I found concave punches are not doing me any good for peening, anyone using them instead of ball peen hammer?  It's not really 'moving' the metal like the ball peen hammer, and I worry it doesn't move enough material down the countersink on the Alox rivet hole...
3) While leaving material on each side, I tried this one technique to push the entire knife flat against the anvil before peening(so any extra pin materials will be pushed up thru the holes), but I was wondering whether I should tried to keep the pin material equal on both sides of the knife while peening.  Is there any difference?


Thanks for reading!  :tu:
Merit Badges Participants shall carry and use one Soldier knife, the model of their choosing, for the duration of the 90 days and post a picture each day. Start a new thread and post a photo of an Executive or Director for thirty (30) consecutive days. In this challenge,  carry one(1) Pliers-based or Non-pliers multitool that we always have prejudice against, hate or even fear and post a picture everyday for 30 days Start a new thread and post a photo daily of any SAK 74mm or smaller ( you can switch it up daily ) for thirty (30) consecutive days. Participate in a Challenge thread and post a photo of a 'folding hunter' knife that isn't a Buck 110 for thirty (30) consecutive days. Participate in a challenge thread and post a photo of a Victorinox 91mm XAVT/XL/XLT, 111mm Workchamp XL, Wenger/Delemont S54/Tool Chest Plus or Wenger Giant for thirty (30) consecutive days Using EDC items randomly selected with a poker hand, post a photo of your EDC or a component of the EDC that got used during the course of the day for 4 weeks (or 30 consecutive days) Start a new thread and post a photo of the 111mm sak for thirty (30) consecutive days. Start a new thread and post a photo of the minimal sak (2 layers or fewer) for thirty (30) consecutive days. Participate and contribute in Challenge thread and post a photo of either an Axe, MT/Folding knife or Fixed blade (picked at the beginning of challenge) for thirty (30) consecutive days. Participate in a Challenge thread and post a photo of a Spyderco knife for thirty (30) consecutive days. Participate and contribute in Challenge thread and post a photo of a different blade each day for thirty (30) consecutive days. Participate  in Challenge thread and post a photo of a SAK Soldier for thirty (30) consecutive days. Participate in a challenge thread and post a photo of a SAK Cybertool (any variant), Swisschamp, Champion or Toolchest for thirty (30) consecutive days. Participate  in Challenge thread and post a photo of a Fieldmaster SAK for thirty (30) consecutive days. Start a new thread and post a photo of the discontinued sak/mt for thirty (30) consecutive days. Start a new thread and post a photo of a fixed blade for thirty (30) consecutive days. Participate  in Challenge thread and post a photo of a Explorer SAK for thirty (30) consecutive days. Start a new thread and post a photo of any gear for thirty (30) consecutive days during the MTo anniversary month. Start a new thread and post a photo of the leatherman (supertool, core, hacks) for thirty (30) consecutive days. Participate in the Challenge thread and post a photo of a Flashlight for thirty (30) consecutive days.

no Offline Vidar

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Re: Gathering thoughts/tools/materials for first mod
Reply #35 on: June 23, 2019, 08:32:32 PM
Yay! A drill press - congrats! :tu:  :cheers:

As for the riveting I'm sure others here have more experience with SAK rivets than me.
"Simple is hard"
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(Partial disclosure: I design tools for a living).
Merit Badges Start a new thread and post a photo of any gear for thirty (30) consecutive days during the MTo anniversary month.

00 Offline Mechanickal

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Re: Gathering thoughts/tools/materials for first mod
Reply #36 on: June 23, 2019, 11:12:27 PM


Quote from: comis on June 23, 2019, 05:42:17 PM

While leaving material on each side, I tried this one technique to push the entire knife flat against the anvil before peening(so any extra pin materials will be pushed up thru the holes), but I was wondering whether I should tried to keep the pin material equal on both sides of the knife while peening.  Is there any difference?]

I did that myself, which led to my backside peening to be larger than the front ones.

I'm sure you can get it exactly the same if you switch the side you're peening, alot.
Merit Badges Take part in the christmas pool or a rak type giveaway. Those wanting to say thank you for a rak may also nominate for the santa. Start a new thread and post a photo of any gear for thirty (30) consecutive days during the MTo anniversary month. Must post a step by step pictorial of a knife or multitool modification (scale swap not included) Start a thread with photos of at least twelve different colored ALOX models in your collection Start a new thread and post a photo of the 110 knife for thirty (30) consecutive days. Start a new thread and post a photo of the multitool for thirty (30) consecutive days. Must start a thread with a photo of your stayglow SAK Start a new thread with a photo showing the Hook in use Post your pocket dump photos then challenge two more members who must post their pocket dump photos within 24hrs for you to get the badge. Start a new thread with photos of your Buck knives in use Must put something in order and provide link to the post. Start a new thread with a photo of your custom ALOX with scissors Start a thread with photos of at least 1 MTO branded tool in your collection Must buy an item through the MTo Store Start a new thread with photos of your chainsaws Start a new thread with photos of your titanium gear with a multitool or sak Test,please ignore Must start a thread with a photo of your birth year SAK Start a thread with a photo of a repair you made with duct tape Start a new thread with a photo of custom or non standard SAK scales in your collection Must start a thread with a photo of at least five (5) of your watches

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