Search found 85 matches

by RMinMN
Thu Apr 02, 2020 4:48 am
Forum: General Discussion
Topic: Drilling #8 Rebar
Replies: 4
Views: 150

Re: Drilling #8 Rebar

Does the job you have actually require rebar? There may better solutions. Give us some hints on what it needs to do.
by RMinMN
Mon Mar 30, 2020 12:31 pm
Forum: General Discussion
Topic: Thinking about cnc
Replies: 7
Views: 287

Re: Thinking about cnc

"But I do like the idea that I could duplicate a part simply by running the program again . ( yea I get that it's not quite that simple ) " Yes it is that simple. You have the part designed, you put that design through the CAM process to generate the gcode and save the gcode with a name you can reme...
by RMinMN
Mon Mar 30, 2020 5:07 am
Forum: General Discussion
Topic: Thinking about cnc
Replies: 7
Views: 287

Re: Thinking about cnc

What is the purpose of going to CNC for you? Multiple runs of the same design? Ability to make complicated cuts that are difficult to impossible to achieve by hand? Just curiosity about CNC and how it works? For me it is more of a curiosity about how it works and lack of hand-eye coordination that l...
by RMinMN
Tue Mar 10, 2020 8:04 pm
Forum: General Discussion
Topic: solid rivets
Replies: 33
Views: 2043

Re: solid rivets

I was taught to use a heavy bucking bar behind the head of the rivet, then peen the other end to form a head to hold the rivet in place before hammering it home to swell the rivet into the holes so even if worn there would be no slack in the rivet.
by RMinMN
Sun Feb 16, 2020 6:13 am
Forum: General Discussion
Topic: CNC tolerances
Replies: 8
Views: 1160

Re: CNC tolerances

The bed on my 3D printer isn't flat. I could do a "mesh bed leveling" and map out that curvature so the printer would "know" what that curvature was to some degree but instead I threw a bunch of money ($20) at it by installing a glass bed. Note that the first thing to do after installing the glass b...
by RMinMN
Fri Feb 14, 2020 6:17 am
Forum: General Discussion
Topic: Parting tool holder
Replies: 39
Views: 4595

Re: Parting tool holder

How about something like this, a self-contained cutoff toolholder. The height will have to be changed if you need to extend or shorten the stickout to accomodate deeper cuts or for more rigidity.

https://www.shars.com/universal-parting ... pe-107-axa
by RMinMN
Sun Feb 02, 2020 6:43 am
Forum: Welding
Topic: AlphaTIG 200x
Replies: 9
Views: 2252

Re: AlphaTIG 200x

All those knobs give you way more control of how the welder works. If you need that control you will want all of them. If you don't need all of them, find out the few you do and leave the rest alone.
by RMinMN
Thu Nov 14, 2019 6:13 am
Forum: The Junk Drawer
Topic: touch screen ghost touch
Replies: 7
Views: 1695

Re: touch screen ghost touch

Set up voicemail and don't bother to answer the phone when you are working. If they want to talk to you, call them back when it is convenient for you, If they won't leave a voicemail maybe they really didn't have anything important like many of the robocalls don't, Your phone should have a record of...
by RMinMN
Mon Nov 04, 2019 1:08 pm
Forum: General Discussion
Topic: Parting made easy
Replies: 13
Views: 2926

Re: Parting made easy

In conventional parting if the parting tool digs in it tends to tip the toolpost toward the piece being cut, making the tool dig in more. By moving the parting tool to the rear and upside down, when the parting tool tries to dig into the workpiece the toolpost tends to tip away from the workpiece re...
by RMinMN
Sun Oct 27, 2019 5:23 am
Forum: General Discussion
Topic: VFD setup
Replies: 28
Views: 5448

Re: VFD setup

If you have a smartphone or tablet, take a picture of the motor plate. It's easy to flip the picture so you can then read it. You can even magnify the picture to make it easier to read.
by RMinMN
Fri Oct 25, 2019 5:28 am
Forum: Welding
Topic: Wood Shaper Cabinet = Welding Table?
Replies: 3
Views: 2132

Re: Wood Shaper Cabinet = Welding Table?

I think it would be nearly impossible to fit my tractor and plow up on that cabinet to do repairs. My cultivator might be hard to get through the door to get there and when the grain drill breaks at the far end of the field I don't think moving that cabinet to it will help. Otherwise I like the idea...
by RMinMN
Fri Oct 18, 2019 4:55 am
Forum: General Discussion
Topic: Anyone know where I can find this roller?
Replies: 11
Views: 2132

Re: Anyone know where I can find this roller?

Could you replace the roller with a skateboard bearing? It might need the mount redesigned but that doesn't seem that difficult. Skateboard bearings are really cheap and the outer race hard enough that it would take a long time to wear out one. I see packages of 10 for under $10 on Ebay.