• 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.

    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 will not be around. I am leaving this place in good operating condition, and financial condition.
    --Nelson
[4]

Rotary table question ???

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

umahunter

Active User
Registered
Joined
Jan 21, 2014
Messages
641
Likes
353
#1
Ok have a question I can't find an answer to. are the circles on the top of the rotary table representative of the size of arc that will be cut if stock is placed over the line the further you move from center the bigger the circle or arc if not what is there purpose just measurement or ????
 

benmychree

John York
H-M Supporter - Gold Member ($25)
Joined
Jun 7, 2013
Messages
2,128
Likes
1,572
#2
Yes, they are there to aid on setting work up to a specific radius, just as are the similar radial markings on a four jaw chuck. However, much more important is the center hole in the rotary table, one makes a shaft to fit in the hole, and hopefully the upper portion turned to fit in a hole in the workpiece to center it up to cut a diameter on it, in that case, the lines would suggest a starting point for the milling to be done.
 

Ray C

H-M Supporter - Sustaining Member
Staff member
H-M Platinum Supporter ($50)
Joined
Nov 16, 2012
Messages
5,215
Likes
1,403
#3
The circles do not represent arc motion. They are there mainly to line up the part visually. Arc is defined by where the piece is mounted on the rotary table in-relation to how far offset the cutter is from the axis of the tables center-hole.

Ray
 

derf

Registered
Registered
Joined
Oct 3, 2015
Messages
546
Likes
592
#4
Gees.... I thought they were scoring rings...:grin:
 

dlane

Active User
H-M Supporter - Gold Member ($25)
Joined
Sep 27, 2014
Messages
2,901
Likes
1,353
#5
I put them in the fixture plate I made just because I could also some taped mounting holes .
DAC01DAD-0A48-45AB-AA73-2E3916859576.jpeg
my cordless drill was the powerfeed for the rt.
The centering dowel pulls out.
 
[6]
[5] [7]
Top