Search found 249 matches

by kstrauss
Thu May 20, 2021 11:34 pm
Forum: Aspire - General
Topic: Thread Milling 1/4"bsp port for watercooling distro plate
Replies: 15
Views: 1741

Re: Thread Milling 1/4"bsp port for watercooling distro plate

I assumed that he would ignore VCarve's calculation of thread depth and choose the correct value. Note that VCarve is extremely limited in calculating the depth of even metric threads. The last I checked it doesn't provide for M12-1.50, M12-1.75 and M12-1.25, for example. Choices are even more limit...
by kstrauss
Wed May 19, 2021 4:31 pm
Forum: Aspire - General
Topic: Thread Milling 1/4"bsp port for watercooling distro plate
Replies: 15
Views: 1741

Re: Thread Milling 1/4"bsp port for watercooling distro plate

You wrote "Using a 55 degree tool with that will allow you to create a thread, and male/female parts that match but it would be neither ISO standard nor BSP/Whitworth." It sounds as though the original poster needs the female rather than male thread. Perhaps I'm confused but my understanding is that...
by kstrauss
Tue Mar 30, 2021 3:54 am
Forum: VCarve - General
Topic: Peck drilling aluminum?
Replies: 8
Views: 571

Re: Peck drilling aluminum?

Is the gullet for each tooth a portion of a 5mm circle? If so I would probably use a 4.5mm rather than 2.5mm drill. Use the drill rather than the endmill to remove as much material as possible.
by kstrauss
Thu Feb 18, 2021 2:42 pm
Forum: VCarve - General
Topic: Slow feed rates on curves, fast feed rates on straight routes
Replies: 12
Views: 631

Re: Slow feed rates on curves, fast feed rates on straight routes

I don't know anything about your control software but, assuming that you have the option, you may have "exact stop mode" (G64) enabled. See https://linuxcnc.org/docs/2.6/html/common/User_Concepts.html for more than you probably want to know. Another possibility is that you have many short segments a...
by kstrauss
Tue Feb 16, 2021 5:50 pm
Forum: VCarve - General
Topic: First Experience cutting 6061 Aluminum
Replies: 17
Views: 823

Re: First Experience cutting 6061 Aluminum

I don't want to start an argument about coolant. However, I would like to mention that alcohol is used by many high end industrial machines. For example, Datron (https://www.datron.de/en_gb/datron-cnc-machines/accessories-and-technologies/coolinglubrication-system.html and https://www.youtube.com/wa...
by kstrauss
Tue Feb 16, 2021 5:28 am
Forum: VCarve - General
Topic: First Experience cutting 6061 Aluminum
Replies: 17
Views: 823

Re: First Experience cutting 6061 Aluminum

I seldom cut anything other than aluminum and plastics such as Delrin. A few comments on my experience: My max spindle RPM is 10000 and that is what I mostly use Securing thin material is very difficult. Approaches that have worked for me include using double sided paper tape (Nitto P-02 works well)...
by kstrauss
Sun Feb 07, 2021 3:44 am
Forum: VCarve - General
Topic: working with metal
Replies: 29
Views: 1286

Re: working with metal

I mostly agree with Leo except for his comment that aluminum is gummy. Yes, pure aluminum is gummy but common alloys such as 6061 and 7075 cut beautifully. A rigid machine, sharp cutters, spindle speeds that wood workers consider slow (typically 10000 rpm) and mist coolant together with an air blast...
by kstrauss
Sat Jan 30, 2021 9:34 pm
Forum: VCarve - General
Topic: Diamond Drag
Replies: 3
Views: 299

Re: Diamond Drag

Thanks! I wonder when that tool type was added. Does it do anything special other than letting you set the spindle speed correctly?
by kstrauss
Sat Jan 30, 2021 7:18 pm
Forum: VCarve - General
Topic: Diamond Drag
Replies: 3
Views: 299

Diamond Drag

I often use a diamond drag engraving tool to add serial numbers and such to projects. A diamond drag tool doesn't rotate so the spindle speed for it is set to zero. It works great. Ages ago (perhaps VCarve v8?) I added my diamond tool to the tool database and have moved things forward unchanged wit...
by kstrauss
Mon Jan 11, 2021 2:48 am
Forum: Aspire - General
Topic: Local processing
Replies: 6
Views: 619

Re: Local processing

Like gio14, I also work mostly with metal with some projects in plastic. For both 2.5d and 3d work rest machining and HSM tool paths are two extremely valuable capabilities that are missing from Vectric products. If you need beta testers I will be happy to assist!
by kstrauss
Wed Nov 18, 2020 7:34 pm
Forum: VCarve - Tips and Tricks
Topic: Cam question, removing perimeter of circle, for example.
Replies: 23
Views: 2704

Re: Cam question, removing perimeter of circle, for example.

My usage of VCarve is mostly in cutting metal so results with wood may differ. A straight line leadin goes to full cutter engagement over a short distance which possibly results in significant tool deflection. With a reasonably large radius tangential arc the full engagement is over a much longer di...
by kstrauss
Wed Nov 18, 2020 4:31 pm
Forum: VCarve - General
Topic: STL Import Problem
Replies: 14
Views: 982

Re: STL Import Problem

Thanks, I'll give it a try. Perhaps as an enhancement the smoothing tolerance could be varied as a function of model size. As you noticed my STL is not large (less than an inch in diameter). My projects are mostly in metal or plastic and range between small and tiny.
by kstrauss
Wed Nov 18, 2020 4:21 pm
Forum: VCarve - General
Topic: Document Variables
Replies: 2
Views: 222

Document Variables

Document variables are great for defining designs parametrically. Is there any way to define a document variable that is itself a formula? Something like defining {CutDepth} as "z-0.1" or "{LidThick}/2"?
by kstrauss
Tue Nov 17, 2020 2:50 am
Forum: VCarve - General
Topic: STL Import Problem
Replies: 14
Views: 982

Re: STL Import Problem

GregK, I appreciate your comments. My testing was done with 10.509 and my results seem much worse than you showed with 9.519 and are similar to your pre-9.519 image. Is it possible that somehow the 9.519 update was not carried into 10.509?
by kstrauss
Sat Nov 14, 2020 2:52 am
Forum: VCarve - General
Topic: STL Import Problem
Replies: 14
Views: 982

Re: STL Import Problem

Thanks for the clue regarding a previous discussion. After considerable searching I found https://forum.vectric.com/viewtopic.php?f=2&t=32700&p=237448&hilit=stl+problem#p237448 which describes a problem very similar to mine. Greg K wrote that: "It seems that the current tolerance for this part of th...