Optical Centre Punch - One Day Build Project
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- Опубликовано: 14 дек 2024
- G'day everyone,
In this video I am making an optical centre punch as a gift for a friend of mine. I have always liked these quirky tools and I have always wanted to make one.
They may be a bit old fashioned, but I think these are cool tools to have in a small maker space, either as a tool or for decoration. I had a spare afternoon free and I decided to make one. Thankfully they aren't difficult to make and they don't use up a whole lot of material. All I needed was a piece of solid bar steel, some W1 tool steel, clear acyrlic and some aluminium for the stand.
Now this is not the definitive version of the optical centre punch, there are better design, but I like this design and the aluminium holder for the pinch and optical pin.
A quicker video this week but I hope you enjoy it none the less.
optical centre punch
optical center punch
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A nice little project, might have to make one myself. Regarding the aluminium not machining right, I've seen that with some 6082-T6 where it was soft and gummy, not normal. I called the supplier and spoke to the head guy and he said he knew exactly what I was experiencing as he had run a commercial machine shop producing large volumes of aluminium parts and things would be fine for months until a new batch of material would come in from the mill and things would go wrong as it didn't machine as it should. He said they got the heat treatment wrong, he was large enough they would replace the material. In my case he said to ask for him next time i was in and he would replace it which he did FOC and I could keep the bad stuff which is slowly being used up where it can be.
I have one, made in Germany, got it from my uncle. It's in daily - or at least weekly - use in my shop. Well made gift!
You can insert the metal punch on one end and the plexiglass rod on the other. You can then lightly press or tap the punch to leave a concentric point on the end of the plexiglass.
Came here to say the same thing!
Man, I think he would totally appreciate it, considering they are not cheap for what they are. I wanted one to have for the occasional precision punch, but couldn't justify paying 100 USD for one, so this looks like a project I'll have to take up.
I had to look that up coz I thought "100 usd?! No way"........😱 HOLY CRAP!!
For a Uri Tuchman rendition - sure, no worries. For what Google showed me -🖕
@@vaulthecreator Yeah, there are some cheaper ones but from my experience, every time I buy cheap center punches, the heads are so soft they fold over after a few strikes. A good set seems to be around 100 USD. I also believe that optical punches are such a niche item that even the Chinese don't bother making them, as there's probably not a huge market for it, so the pricing seems to be steady.
very nice little project
Engraved on the holder: "Hey bud, you've been a little off the mark recently, so I made you this"
😆😆😆
I have an optical center, and I’m surprised how much I use it. Grate work.
The intro is so golden! 🤣
Nicely done and they are a useful addition to any workshop. Especially one occupied by a bloke with tired eyes, like mine.
I have that exact unit you showed. I used mine yesterday.
Nice gift. I wouldn’t mind having one of these myself
Just came in from the shop myself. It’s 2 degrees C here and my shop is unheated so I was glad to get some milling done before it gets back under freezing. Making some jaws for the air vise at work, nothing fancy but I enjoy working with my hands since I sit in front of solidworks all day during the week.
My favorite finish on Aluminum is brushing it with a scotch brite pad to remove the tool marks and then I put it in some concentrated sodium hydroxide solution. This not only cleans the part, but you get a really nice uniform finish with a bright and almost blueish silver color. Depending on the concentration it only takes a few minutes, but you can also do it with washing soda and let it sit for longer, if you don't feel like dealing with corrosive chemicals. Just keep in mind, that you are chemically removing material, so be careful on parts with very critical tolerances.
I suppose most people think a center punch is a blow to the nose but this is a really nifty gadget and of course a very nice gift.
😂🤣😂🤣
I've been wanting one of these. I'll have to add this to my list of projects! 👍
A very nice gift. Cheers 👍💪✌
That turned out great!!! Personally, I would love to get a handmade gift like that. Your friend is lucky indeed.
I hope that you and your family have a very Merry Christmas.
nice work, it looks amazing.
Thanks for sharing 👍 and Merry Christmas to you and your family 😊
Beautiful work, dude! It turned out great! 😃
Merry Christmas!
Stay safe there with your family! 🖖😊
Very nice project! Thanks for sharing. I never knew about those micromesh sanding pads. Just added a bunch to the arsenal! cheers!
You can wash/ rinse the pads numerous times also. 😁😁They are commonly found in Pen Turners go to abrasives' box. As demonstrated so ably here, perfect for hard plastics, also for standard wood turning 'hard' finishes, even CA/BLO. Oh, not forgetting the resin/ epoxy casters. I have a few packs, some for wood, some for plastics and even some for metals. Just don't mix them up. 😒 (Don't ask).
very nice wqork!
Thats so awesome, happy holidays man! Awesome video!
I would use one.
very cool little present that. I occasionally struggle to get centre dots and if you don't get them exactly right drill bits wander ...especially small ones so I know I would be stoked to get something like this.....considering making one now too lol
happy holidays
I need to make one of these someday
👍👍👍
its like 5$ on aliexpress in anodized cnc machined aluminium. Plus if your have two metal rods connected by a spring you dont even need the hammmer. You pull them apart and let go. Its much nicer. Or the spring punch where you just push on it. Give it a 10mm OD and it will fit in the same hole
If you use that center punch on steel, I think you'll find it is actually very soft. You need to heat the punch up to a dull cherry red before quenching.
In the "test" footage it is clear that there is a huge backlash between the movement of the body and the optical rod.
Yeah, it's atrocious.
Wouldn't you be able to use the punch to make the center dot in the acrylic sight by using the holder? Putting the acrylic in the holder half way, then inserting the punch into the other side of the holder and giving it a gentle tap.
Wouldn't this way ensure both the punch center and the sight center are both in the same place as long as they both have the same diameter.
I could be wrong if so I'd love to know how so I can learn where I'm messing up.
I was making something last week where one of these would have been nice.
Where do you buy your steel bar and other plates from?
@PaskMakes made this kind 3 month ago
I don’t know why, but deep down I hope that’s been the same hacksaw blade after all these years.
Punch a center or center a punch?
... yes, no. maybe. Its one of them
Center a center, punch a punch
What is the point of this endeavour? 😆Enjoyed it very much, cheers! and nice gift for your lucky chum!
The lathe has really become alot stiffer, so much less chattering noise in this video!
Using sandpaper without protecting the bed of the lathe hurts while watching.
Pask makes colab??
Tools like these aren't ornamental IMO, they're just not suited for industrial production. Tools like this are more for the artistic side of metalworking, where doing more of the work by hand has a value all of its own, even if a machine might be able to do it faster.
As a tool and die maker, they are great to have :)
Why you a day late
I was waiting for this yesterday
Had some friends over last night for some drinks. End of year stuff.
The sun still rose this morning, didn't it? Let the man live.
@@classicbandgeek I'm joking m8
@@artisanmakes didn't expect you to reply m8
But yeah that makes sense.
Have a good one
Clickspring for mortal men.
Is a bandsaw a tool you ever wished out had?
First!
😂
Dont cut stock by hand!
channeling a little bit of ThisOldTony here. in a good way
awesome