Name this shop TOOL

[YYCHM]

Hey Craig, my down the road project is a back plate for my ER32 Collet Chuck assembly more-or-less scheduled for fall or winter. The back plate needs to be as accurate as I can make it as it has a inward recess on one side and a outwards recess on the other. Along with six threaded 8mm - 1.25 bolt holes where tolerances need be spot on the mark.

Me thinks the 8mm - 1.25 metric transfer screw should help accomplish that. Thought I had the problem solved although after logging in to Travers Tools but not so fast Billy applied the brakes on. Time is on my side so I can play around with DIY making same if need be.

Need pictures of the two parts. Which piece has the blind threaded holes. You shouldn't have to use all 6 holes, three should suffice. The thru holes and registration should have sufficient slop to allow the chuck to be bumped into alignment. I've had to do this very same thing twice now. Once for a 3J and once for my ER32 chuck.

 

[VicHobbyGuy]

Me thinks the 8mm - 1.25 metric transfer screw should help accomplish that. Thought I had the problem solved although after logging in to Travers Tools but not so fast Billy applied the brakes on. Time is on my side so I can play around with DIY making same if need be.

I've done a similar job (chuck adapter plate for 4" chuck on 3" lathe flange) and I made 'quick and dirty' transfer screws. Start with something threaded M8 (setscrew, threaded rod, cap screw with head cut off), grind a point on the end, and then grind or file a couple of flats -one on each side of the point. You don't need much point to do the transfer. Screw/unscrew by hand or with a small wrench or needle-nose pliers. Making those threaded points was a 10-15 minute job. They weren't real hard, but good enough to mark a couple of points each.

 

[phaxtris]

You could just use a normal transfer punch, the chuck should register on the shoulder to the backing plate, bolts are just to hold the chuck to the plate

 

[Dusty]

Need pictures of the two parts. Which piece has the blind threaded holes. You shouldn't have to use all 6 holes, three should suffice. The thru holes and registration should have sufficient slop to allow the chuck to be bumped into alignment. I've had to do this very same thing twice now. Once for a 3J and once for my ER32 chuck.

Hey Craig understand what you are saying, photos will come at a later date.

 

[Dusty]

You could just use a normal transfer punch, the chuck should register on the shoulder to the backing plate, bolts are just to hold the chuck to the plate

Hey Ryan yes I could do that however my transfer punch set is imperial so I would need to turn down one to fit the 8 mm threaded hole.

Working on the solution as to what is best for me.

 

[Dusty]

Hey Craig you have a PM.

 

[Dabbler]

@Dusty here is a set that would get you where you need to be. Sorry about the metric thing with Aircraft Spruce. I need lessons in reading comprehension!

here's a link that will get you there for around 60 bucks:

https://www.amazon.ca/HHIP-3601-0519-Piece-Transfer-Screw/dp/B07NQRCWPK/ref=sr_1_5?crid=3LFJYP9CEIMAM&keywords=transfer%2Bscrews%2Bmetric&qid=1656457347&sprefix=transfer%2Bscrews%2Caps%2C179&sr=8-5&th=1

 

[phaxtris]

Hey Ryan yes I could do that however my transfer punch set is imperial so I would need to turn down one to fit the 8 mm threaded hole.

Working on the solution as to what is best for me.

i hear you, i would think a 5/16 transfer punch would be close enough, this is a through hole is it not ? you will be drilling oversize anyhow

 

[Dusty]

@Dusty here is a set that would get you where you need to be. Sorry about the metric thing with Aircraft Spruce. I need lessons in reading comprehension!

here's a link that will get you there for around 60 bucks:

https://www.amazon.ca/HHIP-3601-0519-Piece-Transfer-Screw/dp/B07NQRCWPK/ref=sr_1_5?crid=3LFJYP9CEIMAM&keywords=transfer%2Bscrews%2Bmetric&qid=1656457347&sprefix=transfer%2Bscrews%2Caps%2C179&sr=8-5&th=1

Reading comprehension, laughing with you been there done that oh so many times. LOL

Thanks for the link, this set works as it has the correct 8mm-1.25 threads.

https://www.amazon.ca/HHIP-3601-0519-Piece-Transfer-Screw/dp/B07NQR5393/ref=sr_1_5?crid=3LFJYP9CEIMAM&keywords=transfer%2Bscrews%2Bmetric&qid=1656457347&sprefix=transfer%2Bscrews%2Caps%2C179&sr=8-5&th=1&tag=chmw099-20

 

[Susquatch]

Would you kindly expand on this for me!

I think others have already chimed in and answered your question. I was out spraying in my farm fields all day. Sorry about that.

The only thing I would add is that I only order from Travers.ca. The have sometimes shipped from the USA, but I've never had to pay more for that. What I pay when I order is what I pay.

Frankly, I didn't know about the $100 minimum order. I guess I never hit it. I usually try to "collect" a larger order over time to minimize shipping costs so I was prolly always over 100 and didn't realize I was boating in shallow water.

I am currently planning to get a few surface grinder wheel adapters.

Tell you what, if you want those punches, I'll order them with my stuff which will take it over the 100. I'll pay the shipping for everything to me and then you cover my shipping to you for your punch set. If that works for you, PM me.

Edit - didn't see that @Dabbler found some for you. No biggie either way. Just let me know if I can help.

 

[Dusty]

I think others have already chimed in and answered your question. I was out spraying in my farm fields all day. Sorry about that.

The only thing I would add is that I only order from Travers.ca. The have sometimes shipped from the USA, but I've never had to pay more for that. What I pay when I order is what I pay.

Frankly, I didn't know about the $100 minimum order. I guess I never hit it. I usually try to "collect" a larger order over time to minimize shipping costs so I was prolly always over 100 and didn't realize I was boating in shallow water.

I am currently planning to get a few surface grinder wheel adapters.

Tell you what, if you want those punches, I'll order them with my stuff which will take it over the 100. I'll pay the shipping for everything to me and then you cover my shipping to you for your punch set. If that works for you, PM me.

Edit - didn't see that @Dabbler found some for you. No biggie either way. Just let me know if I can help.

@Susquatch actually I beat you to the punch wanting to get my ducks in order so I ordered this set from amizon.ca, thanks for your kind offer much appreciated.

Ordered this set from amazon.ca as I'm not going to play around any longer, heading back to hospital (day surgery) for a few days in Regina.

https://www.amazon.ca/HHIP-3601-1008-Piece-Transfer-Screw/dp/B01IUBRYOK/ref=sr_1_1?crid=ZH9XW6K7XK2W&keywords=8mm+-1.25+transfer+set&qid=1656460080&sprefix=8mm+-1+25+transfer+set%2Caps%2C175&sr=8-1

The 8mm set Dabbler suggested wouldn't work because of thread size besides the reviews on quality scared me off from this seller.

 

[gmihovics]

Good luck @Dusty! Looking forward to hearing how the transfer screws work out.

 

[Tom O]

Could you machine a 8mm sleave for a transfer punch to go in like those centering units that use magnification to find scribed lines?

 

[Dabbler]

@Tom O That is a wonderful idea for larger sizes that won't completely obliterate the hex socket - I'll steal any great idea!

 

[Susquatch]

Could you machine a 8mm sleave for a transfer punch to go in like those centering units that use magnification to find scribed lines?

You lost me on that one Tom.

I think my disconnect starts with I have no idea what this magnification thing is......

 

[trlvn]

You lost me on that one Tom.

I think my disconnect starts with I have no idea what this magnification thing is......

Like this:

Optical Punch Set - Grizzly Industrial

This Optical Punch Set is indispensable when doing critical layout work. Just look down the magnifying lens and align the cross hairs with the mark on your work piece. Replace the magnifier with the supplied punch and give it a tap. Includes a bull's eye and cross hair lens, a 150 degree and...

www.grizzly.com

Craig

 

[Susquatch]

Like this:

Optical Punch Set - Grizzly Industrial

This Optical Punch Set is indispensable when doing critical layout work. Just look down the magnifying lens and align the cross hairs with the mark on your work piece. Replace the magnifier with the supplied punch and give it a tap. Includes a bull's eye and cross hair lens, a 150 degree and...

www.grizzly.com

Craig

Very Cool. Never knew this existed. Thank you Craig!

How the heck do you see down in there? Does shining a side light on it somehow get funnelled down the hole to the work?

 

[trlvn]

Very Cool. Never knew this existed. Thank you Craig!

How the heck do you see down in there? Does shining a side light on it somehow get funnelled down the hole to the work?

Keith Rucker on the Vintage Machinery Youtube channel goes over an optical center punch in the following video:

Craig

 

[VicHobbyGuy]

Optical Punch Set - Grizzly Industrial

This Optical Punch Set is indispensable when doing critical layout work. Just look down the magnifying lens and align the cross hairs with the mark on your work piece. Replace the magnifier with the supplied punch and give it a tap. Includes a bull's eye and cross hair lens, a 150 degree and...

www.grizzly.com

Thanks for that idea and the link. Did you buy one of these? I tried but I noticed that the only shipping option is UPS Standard which in my experience incurs a $50+ 'handling charge'. Buyer beware- the same Grizzly set ($47USD at Grizzly) is listed on amazon.ca for $141 CAD! Forgetaboutit! Unfortunately the Veritas (LeeValley) version is discontinued. LV is on a downhill slide. I tried looking on AliExpress - assuming the Grizzly tool must come from China, like all their stuff - but couldn't find one. Perhaps I didn't hit the right search terms.

 

[trlvn]

I don't own an optical punch; just remembered it from the Youtube video and found a random link via DuckDuckGo.

I wouldn't turn one down but with a DRO it probably has limited application, IMHO.

Craig