• We want to encourage those of you who ENJOY our site and find it USEFUL to DONATE and UPGRADE your membership from active member to donating or premium membership. If you want to know the differences in membership benefits, please visit THIS PAGE:

    https://www.hobby-machinist.com/premium/

    Donating memberships start at just $10 per year. These memberships are in fact donations that help pay our costs, and keep our site running!
    Thank you for your donation, God Bless You

  • As some of you know, I have wanted to stop managing H-M for some time. It's a tremendous strain on my personal life. I want to set up my own shop. In September, September 15, to be exact, it will be 8 years that Hobby-Machinist has been in existence.

    We've seen a lot of changes. In March, 4 moderators left to start their own site. They took some of you with them. So now you have split loyalties. You know who you are. They didn't like my way of managing this place, and thought they could do better without me. They didn't. The only thing holding them together is that they hate me. Their site was down until mid July. That is why I wanted to stay involved on here until they could learn to run this place. But they wanted me to leave right away, without the training part.

    Anyway, I have been training VTCNC to run things here. Dabbler is going to learn too. I feel that they are ready to start taking over the operation. I will be here to help in case they need, but I don't think they will. Tony Wells is and will be here also to consult with. I will be doing backups, upgrades, and installing addons. Other than that, I don't want to know about this place.

    What about the 4 moderators who were disloyal? I don't care. It isn't my call anymore. I would think that, rather than fumble, they ought to come back and do good work. That's up to them. If they want to return to try to lead more members to their site, I am done caring. I suffered too much aggravation worrying about it. I don't plan to spend any more. What they do impacts on them. I have my own opinions including those of you who followed them there. No longer my problem.

    I am leaving this place in good operating condition, and financial condition.
    --Nelson
[4]

Square 5c collet orientation

[3]
[10] Like what you see?
Click here to donate to this forum and upgrade your account!

cg285

Registered
Registered
Joined
Jan 10, 2018
Messages
248
Likes
93
#1
before i buy a couple square 5c collets does anyone know how the square would orient in a collet block? in other words i need the square hole to be square with the collet block
 

dlane

Active User
H-M Supporter - Gold Member ($25)
Joined
Sep 27, 2014
Messages
2,901
Likes
1,353
#2
Depends how accurate it needs to be , fast way put stock in it use a parallel on flat surface to square it up,
Accurate slow way indicate it with a dti.
 

cg285

Registered
Registered
Joined
Jan 10, 2018
Messages
248
Likes
93
#3
Depends how accurate it needs to be , fast way put stock in it use a parallel on flat surface to square it up,
Accurate slow way indicate it with a dti.
the collet has an alignment groove so it can only go in one way
 

dlane

Active User
H-M Supporter - Gold Member ($25)
Joined
Sep 27, 2014
Messages
2,901
Likes
1,353
#4
Well I guess it depends where the groove is and how accurately the pin fits and placed , I think that is to keep the collet from spinning , should be removable.
 

cg285

Registered
Registered
Joined
Jan 10, 2018
Messages
248
Likes
93
#5
Well I guess it depends where the groove is and how accurately the pin fits and placed , I think that is to keep the collet from spinning , should be removable.
yep, hence the question :)
i don't want to remove it. i am hoping it will orientate square to the block
 

kd4gij

Active User
Registered
Joined
Feb 7, 2011
Messages
4,587
Likes
1,758
#6
Not sure why putting square stock in a square collet block. But if the key doesn't line it up right just remove the setscrew and line it up.
 

cg285

Registered
Registered
Joined
Jan 10, 2018
Messages
248
Likes
93
#7
Not sure why putting square stock in a square collet block. But if the key doesn't line it up right just remove the setscrew and line it up.
i know but then it gets in to a government job. i want to do repeat work. looking for someone who has possession of both a square 5c collet and block
 

Jimsehr

Active User
H-M Supporter - Silver Member ($10)
Joined
Apr 23, 2013
Messages
381
Likes
296
#8
Where are you going to get a 1 inch 5c sq collet ? When I needed one I made it on the mill . And it only held the 1 inch sq stock in the milled part that sticks out of the spindle as 1 inch sq is to big to go thru a 5c collet.
 

cg285

Registered
Registered
Joined
Jan 10, 2018
Messages
248
Likes
93
#9
Where are you going to get a 1 inch 5c sq collet ? When I needed one I made it on the mill . And it only held the 1 inch sq stock in the milled part that sticks out of the spindle as 1 inch sq is to big to go thru a 5c collet.
where did a 1 inch square collet come from? i'm confused
did i miss type something?
 
Joined
May 4, 2015
Messages
3,389
Likes
1,626
#11
You can get collets at least 5C in all kinds of shapes , rectangular, square , hex , and oval . With emergency collets you can mill any shape on your own. Even oversized diameter. Thank the Hardinage companies for many great products.
 

extropic

Active User
Former Member
Joined
Nov 24, 2014
Messages
533
Likes
353
#12
I have about a dozen 5C square collets, various brands, US and German made.
I never thought about the orientation of the square relative to the pin groove before. however, I just looked at them and all the pin grooves appear to be nominally perpendicular to a flat of the square. I didn't indicate any.
So, the issue goes back to accuracy required.

Please show/explain what your're trying to do so we can learn something too.
 

magicniner

Registered
Registered
Joined
Oct 21, 2017
Messages
398
Likes
358
#15
Good collet blocks can be bolted down to a plate so you could also bolt an alignment reference of your own making to a decent collet block, combine this with a round collet block and the world is your oyster.
 

cg285

Registered
Registered
Joined
Jan 10, 2018
Messages
248
Likes
93
#16
Good collet blocks can be bolted down to a plate so you could also bolt an alignment reference of your own making to a decent collet block, combine this with a round collet block and the world is your oyster.
for this particular porpoise my collet block goes into another fixture with an alignment reference built in. it just needed the work square with the collet block and with easy repeatability as i am impatient
 

magicniner

Registered
Registered
Joined
Oct 21, 2017
Messages
398
Likes
358
#17
for this particular porpoise my collet block goes into another fixture with an alignment reference built in. it just needed the work square with the collet block and with easy repeatability as i am impatient
I'm not a fan of LOL but it does seem appropriate here, you're just asking for the answer you want :D
 

cg285

Registered
Registered
Joined
Jan 10, 2018
Messages
248
Likes
93
#18
I'm not a fan of LOL but it does seem appropriate here, you're just asking for the answer you want :D
nope, i only wanted to verify that it would work in my situation without having to make/modify one
 

hman

Active User
H-M Platinum Supporter ($50)
Joined
Feb 17, 2013
Messages
1,699
Likes
1,325
#19
Just 2 cents's worth more here ... the alignment pin in a collet block will have a certain amount of clearance with respect to the groove in the collet. So it may not be suitable for precision angular alignment. In other words, even though aligned to a certain feature of the collet, it may have a degree or so of slop.
 
[6]
[5] [7]
Top