Thanks: 0
Likes: 0
Needs Pictures: 0
Picture(s) thanks: 0
Results 1 to 15 of 19
Thread: Helix Clamps - A modification
-
27th January 2012, 09:27 PM #1.
- Join Date
- Nov 2008
- Location
- Perth WA
- Age
- 71
- Posts
- 5,650
Helix Clamps - A modification
I bought a pair of these clamps on German Ebay and after a 6 week wait they finally arrived. They suit 14mm wide tee slots. My mill has 12mm slots. The original M12 bolt is radiused on the underside of the head to match an internally radiused washer to facilitate pivoting. Not having a ball turner, I resorted to using a lathe file. The tee nut and washers are 4140. The M10 cap screws do not have long enough threads, something I will deal with tomorrow. Should be fun, it was forecast to be 42.
BT
-
27th January 2012 09:27 PM # ADSGoogle Adsense Advertisement
- Join Date
- Always
- Location
- Advertising world
- Age
- 2010
- Posts
- Many
-
27th January 2012, 10:03 PM #2GOLD MEMBER
- Join Date
- Jul 2010
- Location
- Melbourne
- Posts
- 7,775
Hi BT,
Looks good.
I made a couple of form tools to make pretty much the same thing for fixing the misalignment of the change gears on my lathe. I have them sitting in a draw, looks like I might get to use them again!.
Stuart
-
27th January 2012, 10:04 PM #3Distracted Member
- Join Date
- May 2010
- Location
- Lower Lakes SA
- Age
- 58
- Posts
- 2,557
Nice work Bob. Did you harden them? They look cooked.
Those staircase clamps are so cool. I don't really need them but I want to make some anyway.
-
27th January 2012, 10:18 PM #4.
- Join Date
- Nov 2008
- Location
- Perth WA
- Age
- 71
- Posts
- 5,650
Stu and Bryan,
Thank you.
They are not hardened. I chose to colour them up with my Mapp Gas torch and sump oil rather than fool around with the Blackfast kit.
BT
-
27th January 2012, 10:46 PM #5GOLD MEMBER
- Join Date
- Jul 2010
- Location
- Melbourne
- Posts
- 7,775
Hi BT,
Did you try a file on it?
After all you did heat it up red hot and drop it in oil. sure to wont be as good as it could be as you likely missed a few steps, but it might still be harder that it was.
Stuart
-
27th January 2012, 10:47 PM #6Distracted Member
- Join Date
- May 2010
- Location
- Lower Lakes SA
- Age
- 58
- Posts
- 2,557
Bob could I trouble you for a couple more pics please? I'd like the see the rear view of the whole assembly, and also the other components separately - the ones not already shown on their own. I've got to thinking about how I could machine them from solid but I don't have the full mental picture. Thanks. No rush.
-
27th January 2012, 11:25 PM #7.
- Join Date
- Nov 2008
- Location
- Perth WA
- Age
- 71
- Posts
- 5,650
-
27th January 2012, 11:42 PM #8GOLD MEMBER
- Join Date
- Jul 2010
- Location
- Melbourne
- Posts
- 7,775
-
28th January 2012, 10:56 AM #9GOLD MEMBER
- Join Date
- Mar 2011
- Location
- Dural NSW
- Age
- 82
- Posts
- 1,120
Colouring by heating
-
28th January 2012, 11:09 AM #10
Have you had a chance to use the clamps in anger, Bob? I bought a box of them for cheap a year ago and had them carried back by a friend. They make me want to buy more AMF things.
GregIt's all part of the service here at The House of Pain™
-
28th January 2012, 06:28 PM #11.
- Join Date
- Nov 2008
- Location
- Perth WA
- Age
- 71
- Posts
- 5,650
Intimate pictures for Bryan
I hope this is sufficient.
-
28th January 2012, 06:36 PM #12Dave J Guest
Really nice looking clamps Bob, And thanks for the additional pictures.
I was looking at the 2 last pictures in the first post and it seems the way they are set up breaks the main clamping rule of having the stud closer to the work than step block. It looks like it can go even further forward making it like 2/3rds away from the work and 1/3 away from the clamp which wouldn't give a lot of pressure on the job.
I hope thats understandable as it would be easier to draw, LOL.
Dave
-
28th January 2012, 07:11 PM #13.
- Join Date
- Nov 2008
- Location
- Perth WA
- Age
- 71
- Posts
- 5,650
( I had to have a lay down after eating your lunch as well as mine. )
I haven't used them yet in earnest. This morning, I modified both the screws and the nuts to enable them to clamp at their lowest position which is 30mm above the table. They have an (expected) substantiality about them and the clamping feels more secure than anything I've used before. I will look for more.
I remember when you mentioned scoring the box full. At the time, I had only recently seen a Deckel brochure and my appetite was definitely whet. It was your encouragement to scour Ebay Deutschland that resulted in my purchase of these bargain clamps.
BT
-
28th January 2012, 07:20 PM #14Distracted Member
- Join Date
- May 2010
- Location
- Lower Lakes SA
- Age
- 58
- Posts
- 2,557
Thanks for the pics Bob. I feel I'm on first name terms with your clamps now.
Dave I think there is room to move the workpiece a bit closer to the stud. And closer still with a flat strap.
-
28th January 2012, 07:24 PM #15.
- Join Date
- Nov 2008
- Location
- Perth WA
- Age
- 71
- Posts
- 5,650
Similar Threads
-
Pulley Modification
By Anorak Bob in forum METALWORK FORUMReplies: 14Last Post: 29th January 2011, 07:29 PM -
Aldi modification?
By Ross in forum DUST EXTRACTIONReplies: 14Last Post: 5th June 2009, 02:14 PM -
Bed modification Q
By petersemple in forum WOODWORK - GENERALReplies: 9Last Post: 8th February 2008, 01:15 PM -
Sash clamps versus Bessey K series clamps
By zelk in forum HINTS & TIPSReplies: 8Last Post: 6th September 2007, 10:24 PM -
which brand g-clamps and sash clamps??
By TimberNut in forum HAND TOOLS - UNPOWEREDReplies: 2Last Post: 20th September 2005, 05:44 PM