• Scam Alert. Members are reminded to NOT send money to buy anything. Don't buy things remote and have it shipped - go get it yourself, pay in person, and take your equipment with you. Scammers have burned people on this forum. Urgency, secrecy, excuses, selling for friend, newish members, FUD, are RED FLAGS. A video conference call is not adequate assurance. Face to face interactions are required. Please report suspicions to the forum admins. Stay Safe - anyone can get scammed.

OMT centering microscope (on kijij)

M

mjautek

Well-Known Member
$250, Hanover ON

1731037996496.png


1731097264033.png
 
Last edited:
I've been in the market for something like this for a while, something I can use for W12 and w20. The 30 taper piece should removable and the price is low. It does look physically larger than what I want, but maybe. hmmmm
 
@CWret's optical center (with light) is a bit further down that same thread linked above. I've seen his center. It's really nice!

He gave me a piece of acrylic rod to make my own, but I have not done it yet. Too many projects. My bad.

CWret

Tool Post in thread 'Optical Centre punch.'

Step 1- a sharpe automatic punch on the layout intersection;
Step 2- then a small punch on an angle if some lateral adjustment is needed (like others described above); and
Step 3- then a healthy wack with a large punch to give the drill bit somewhere to bite in.
Step 2 is optional.

Today i ordered some acrylic dowel from Amazon. An optical centre punch is going to be a project when the dowel arrives. Hopefully this new tool can take me right to Step 3.

I think getting the crosshairs accurately onto the flat bottom of the dowel will be the biggest challenge. (Oh yea, I only have a mill...
  • Like
 
@Susquatch - the post you were looking for (about my optical centre punch) is post #27 and #32 in the thread below:

CWret

Tool Post in thread 'Optical Centre punch.'

About a year ago I bought some acrylic 1” dowels to make an optical center punch. They just gathered dust until a few weeks ago. I finally got a roundtoit.
47B02BDF-553F-4949-A553-16863CEFDE36.jpeg

356F8F00-26AD-4EFB-9DDD-994B6098DA54.jpeg

The little lights are designed for putting into party balloons before they are inflated.

Typical comments about these punches include:
1- by using proper techniques for center punching you don’t need one of these;
2- they don’t transmit enough light to see the cross hairs;
3- they are expensive;
4- they are even way more expensive if you can find one that has a light; and
5- not needed if you have a DRO.

The...
  • Like
 
Last edited:
I was up in that area on a getaway with the bride. We spent most of Thursday "thrift shopping" for girl toys which is sorta like dumpster diving for tools but useless junk instead. Her feet had gotten sore so she readily agreed to let me stop in to take a boo at the optical center. I don't really know much about them and apparently neither did he. In fact, he said he had never used it.

The optics have only one pair of parallel lines, and there are no provisions for a light of any kind. It is missing some kind of nose piece that uses spring loaded balls to retain it. The rest of the optics and focus seem to work.

As I looked at it, I thought it could probably be used by rotating the main body in the spindle to align it on X and then rotate it 90 degrees again to align it on Y.

So I offered him a hundred, he countered at 170, and I gave him 140. It quite happily jumped into the backseat of the car with us for the rest of our getaway and long drive home.

As the photos show, it came with a 40 taper. But that is removable and I think I can make an adapter to take an R8 arbour to make it usable. I'd a left it there if I figured that couldn't be done. I guess we will see if rotating it back and forth is really as useful as I hope.
 
Now that recent photos are working, here are some photos.

20241124_120958.jpg20241124_142113.jpg

As you can see, I have taken the 40 Taper off of it and ascertained that I can easily make an R8 arbour for it. I'll either make an adapter or cut a larger 2.5" R8 Facemill Arbour to fit.

I was also pleased to find a registration for the current arbour as that will make a good concentric adaptor possible without a lot of finiggling. No idea how well that will all work till I get there.
 
You must log in or register to reply here.
Back
Top