All MetalShaping

Go Back   All MetalShaping > Search Forums
  Today's Posts Posts for Last 7 Days Posts for Last 14 Days  

Showing results 1 to 25 of 157
Search took 0.03 seconds.
Search: Posts Made By: mark g
Forum: Introductions 06-29-2020, 10:45 PM
Replies: 4
Views: 193
Posted By mark g
Welcome, Tom!

Welcome, Tom!
Forum: General Discussion 04-10-2020, 07:29 AM
Replies: 10
Views: 886
Posted By mark g
Hi Kent, Whatcha doin' with those perforated...

Hi Kent,

Whatcha doin' with those perforated pieces?
Forum: Introductions 04-04-2020, 02:19 PM
Replies: 3
Views: 317
Posted By mark g
Welcome Rick, I've admired many of those...

Welcome Rick,

I've admired many of those boats!

Mark
Forum: Heads Up Announcements 11-19-2019, 10:23 PM
Replies: 1
Views: 1,745
Posted By mark g
proshaper english wheel

I just noticed this posted in Craigslist

https://albany.craigslist.org/tls/d/mechanicville-proshaper-english-wheel/7020258784.html
Forum: Tutorials 08-18-2019, 12:29 PM
Replies: 7
Views: 5,114
Posted By mark g
Corn starch works too, and there's no fragrance.

Corn starch works too, and there's no fragrance.
Forum: Announcements 06-23-2019, 08:11 AM
Replies: 33
Views: 8,541
Posted By mark g
Thanks to Kerry and the other admins for creating...

Thanks to Kerry and the other admins for creating and sustaining this forum. It's been a model of mutually supportive, encouraging, and immanently creative and talented people offering the fruits of...
Forum: Introductions 05-27-2019, 06:50 AM
Replies: 9
Views: 1,223
Posted By mark g
They seemed fine by the time he arrived up here....

They seemed fine by the time he arrived up here. I tested them thoroughly.

It was fun hearing bits of news from the other shops along his way, as it would have travelled in the old days.
Forum: General Discussion 04-08-2019, 07:12 AM
Replies: 11
Views: 2,813
Posted By mark g
Hi Clint, I repurposed parts of a Libert...

Hi Clint,

I repurposed parts of a Libert Shear a few years ago to make a reciprocating machine. I was looking for a way to replace the air power hammer due to noise considerations, and for many...
Forum: Basic questions and answers 04-03-2019, 06:56 PM
Replies: 9
Views: 1,165
Posted By mark g
Hi Chris, I'm in Rockingham VT! If...

Hi Chris,

I'm in Rockingham VT!

If the long edges are down and the short edge is lifted, the edges need more stretching. You have to look at the pattern very closely and take every slight...
Forum: Basic questions and answers 03-30-2019, 09:06 AM
Replies: 40
Views: 5,355
Posted By mark g
I'm estimating that much as 2/3 of each side of...

I'm estimating that much as 2/3 of each side of the part can be gotten with no blocking. Choosing the hammer to round up the edges where blocking is not needed is the main problem I see. That's where...
Forum: Basic questions and answers 03-29-2019, 07:34 AM
Replies: 40
Views: 5,355
Posted By mark g
Hi Rob, That's an interesting shape with an...

Hi Rob,

That's an interesting shape with an interesting problem. It's almost two simple rolls that meet at the rounded corner, so much of what shaping that is required would happen near the...
Forum: Basic questions and answers 03-11-2019, 07:02 AM
Replies: 16
Views: 2,814
Posted By mark g
Ken, Can you show a sketch of the cross...

Ken,

Can you show a sketch of the cross slide set up you're describing for making the large diameter dies? I think I understand you description but not sure.
Thanks.
Forum: Basic questions and answers 03-08-2019, 10:26 PM
Replies: 46
Views: 12,904
Posted By mark g
[QUOTE=crystallographic;117636] Later, I...

[QUOTE=crystallographic;117636]

Later, I worked on a Wheel that was purchased from the Frank Kurtis remnants, vintage pre-1952 or so. Had a sprocket on the upper so it could be driven for making...
Forum: Basic questions and answers 02-03-2019, 09:31 PM
Replies: 18
Views: 1,800
Posted By mark g
Thanks Marc and Kent for the feedback. I'll...

Thanks Marc and Kent for the feedback. I'll order a copy of the suggested booklet. Much appreciated!
Forum: Basic questions and answers 02-03-2019, 10:11 AM
Replies: 18
Views: 1,800
Posted By mark g
Can anyone outline a reliable low tech...

Can anyone outline a reliable low tech methodology that they've used to successfully passivate? Some reading I've done suggests that when improperly attempted, it can lead to worse corrosion...
Forum: Welding Sheet Metal 01-18-2019, 08:20 AM
Replies: 2
Views: 1,412
Posted By mark g
spot welding information manual

https://www.docdroid.net/G2Jc7se/o740a-mil-9-67.pdf

I found this document while searching for spot welding information. It answered many of my questions with one resource.
Forum: General Discussion 11-13-2018, 09:55 AM
Replies: 11
Views: 2,422
Posted By mark g
Seeing the vice held tools brings up a thought. ...

Seeing the vice held tools brings up a thought. I use an arbor press for point- bending this way. By marking out regular spacings and pressing a repeatable amount a pretty fair curve can be...
Forum: Buck Building 06-12-2018, 06:43 AM
Replies: 17
Views: 8,119
Posted By mark g
I've used gorilla glue which is expanding...

I've used gorilla glue which is expanding polyurethane. I cut grooves in the foam for the glue to flow through as it expands. Adding some moisture to the joint helps encourage the expansion and...
Forum: Basic questions and answers 03-28-2018, 07:29 AM
Replies: 7
Views: 1,724
Posted By mark g
Hi Steve, I've made smaller versions of...

Hi Steve,

I've made smaller versions of these shapes by starting with a cone made to the average shape of the trumpet, then "raising" the cone into the trumpet shape with stakes and hammers...
Forum: Automotive Projects 12-16-2017, 10:24 PM
Replies: 10
Views: 2,549
Posted By mark g
Hi Kevin, It looks like that may be a...

Hi Kevin,

It looks like that may be a grooved flat lock seam, aka pipe lock seam. I think the Pittsburg lock Kerry mentioned is the other common ductwork lock but is usually used at a corner...
Forum: Miscellanous products related to metalshaping 06-24-2017, 09:25 PM
Replies: 22
Views: 10,547
Posted By mark g
I have two arbor presses that I acquired for...

I have two arbor presses that I acquired for exactly this kind of work. One is a large 12ton Greenerd No. 5 with a 13" throat, and the other is a 5 ton Weaver "Motor Service Press" that has a nice...
Forum: Basic questions and answers 09-29-2016, 03:25 PM
Replies: 54
Views: 19,900
Posted By mark g
Hi Martin, Sorry for not being clearer. ...

Hi Martin,

Sorry for not being clearer.

I'm just suggesting to start with an oversized piece of metal, so that the metal has more resistance to being pulled into the die. The metal will tend...
Forum: Basic questions and answers 09-29-2016, 08:22 AM
Replies: 54
Views: 19,900
Posted By mark g
Starting with an oversized blank will add radial...

Starting with an oversized blank will add radial resistance to the punching force, and will tend to draw the wrinkles radially from the center more.

It will then also require more force.
Forum: Basic questions and answers 06-11-2016, 08:40 PM
Replies: 5
Views: 2,930
Posted By mark g
I'll elaborate on the layout part. Draw your...

I'll elaborate on the layout part.

Draw your conic cylinder from the side view.

Extent your side slanted lines upward until the meet.

From that point back to the base (in the side view)...
Forum: Basic questions and answers 06-11-2016, 08:10 PM
Replies: 5
Views: 2,930
Posted By mark g
The subject of conical layouts has been covered a...

The subject of conical layouts has been covered a few times here previously. You can do a search. I use a method similar to this one:

http://allmetalshaping.com/showpost.php?p=34276&postcount=2...
Showing results 1 to 25 of 157

 
Forum Jump
All times are GMT -5. The time now is 03:36 AM.

Powered by vBulletin® Version 3.8.6
Copyright ©2000 - 2020, Jelsoft Enterprises Ltd.