• 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]

Parallels

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

ddickey

H-M Supporter - Gold Member
H-M Supporter - Gold Member ($25)
Joined
Apr 21, 2016
Messages
1,596
Likes
825
#1
I have a really nice set of Anton Machine Works .250" thick parallels. I'd like to get a set of .125". What is a good tolerance for 6" long parallels?
 

chips&more

Active User
Registered
Joined
Mar 19, 2014
Messages
2,426
Likes
1,741
#2
I have a couple of Import sets. And can’t complain about the price and or quality. I also have just simple flat stock for certain jobs/applications. And that works too. The question of a parallels tolerance in my shop far exceeds the scope of my hobby shop parameters. Meaning, everything else is trying hold a thou when the parallel is in the tenths. The parallels usefulness is big in my shop, but its manufactured tolerance is not really in the big picture of things. I did check them out when procured, but have not rechecked since. I do check for raised nicks and clean before using. Hope this helps…Dave
 
Last edited:

johneezreno

Swarf
Registered
Joined
May 30, 2018
Messages
10
Likes
4
#3
I agree. The MSC import sets work just fine. If they are within. 0005" across the 6"range you'd be hard pressed to know of it's your vise or parralels. Most those import sets hold better tolerances than .0005" any who.

Sent from my SM-G950U using Tapatalk
 

ddickey

H-M Supporter - Gold Member
H-M Supporter - Gold Member ($25)
Joined
Apr 21, 2016
Messages
1,596
Likes
825
#4
Thanks guys.
 

Ray C

H-M Supporter - Sustaining Member
Staff member
H-M Platinum Supporter ($50)
Joined
Nov 16, 2012
Messages
5,215
Likes
1,403
#5
It's not just the tolerance, it's how well you use them so they keep holding tolerance after seeing some use. This is especially true of thinner parallels. The .250 and larger hold up. The thin ones can get easily distorted if clamped in a vise against a soft piece of stock. The soft stock gives way and hard thick jaws can easily bend the thinner parallels. Moral of the story, is that thin parallels can be damaged easily with seemingly normal use.

Ray
 

P. Waller

H-M Supporter - Sustaining Member
H-M Platinum Supporter ($50)
Joined
Mar 10, 2018
Messages
328
Likes
195
#6
The only "good" tolerance is the one required for the job at hand, spending money on more accurate tooling then is needed costs either the customer or yourself more money.
 

Ray C

H-M Supporter - Sustaining Member
Staff member
H-M Platinum Supporter ($50)
Joined
Nov 16, 2012
Messages
5,215
Likes
1,403
#7
The only "good" tolerance is the one required for the job at hand, spending money on more accurate tooling then is needed costs either the customer or yourself more money.
That's good advice...

FWIW, I have "working" parallels and "measuring" parallels. What I mean by that, is the ones used to clamp things for milling purposes or to line-up pieces in the lathe chuck are kept separate from the 4-5 specific ones over by the granite table. The ones used for measuring purposes were cherry-picked.

Ray
 
[6]
[5] [7]
Top