Search found 391 matches

by tomgardiner
Sun May 24, 2020 1:31 am
Forum: VCarve - General
Topic: Y-axis Soft Limit Error
Replies: 4
Views: 255

Re: Y-axis Soft Limit Error

Have a look for any stray vectors on your drawing. Go to the 2D view and press F for fill screen view. You could have a vector somewhere in space that may be messing with your toolpath.
by tomgardiner
Sun May 24, 2020 1:14 am
Forum: VCarve - General
Topic: array copy toolpath tool change question
Replies: 4
Views: 217

Re: array copy toolpath tool change question

Have a look at the video on toolpath templates from Vectric. This is the approach for what you want to achieve. It requires you or your cabinet software to keep your unique processes on defined layers. Apply tool paths templates and calculate. Voom there are your three toolpaths per sheet. Alternati...
by tomgardiner
Fri Apr 10, 2020 12:22 am
Forum: VCarve - General
Topic: No Accel/Decel during ramping
Replies: 2
Views: 204

Re: No Accel/Decel during ramping

Thanks Gerry. In this case the lack of deceleration sped up the production. I guess Fagor never anticipated ramping around corners at speed.
by tomgardiner
Thu Apr 09, 2020 7:28 pm
Forum: VCarve - General
Topic: No Accel/Decel during ramping
Replies: 2
Views: 204

No Accel/Decel during ramping

Has anyone noticed that V-Carve ignores deceleration during ramps. I am using 8.517
I'm profile cutting with a spiral ramp four passes. All sharp changes in direction happen without the usual slowing until the final non ramping pass which behaves normally.
Could this be a post processor issue?
by tomgardiner
Wed Mar 11, 2020 1:24 pm
Forum: VCarve - General
Topic: Vac Table Top Surface
Replies: 29
Views: 1026

Re: Vac Table Top Surface

Re: vacuum pump manufacturers. There are a handful of brands that you see again and again in industrial settings. I don't know all of their countries of origin. Perske, Becker, Travani, Buusch, Decker, are all good brands. There are others I am sure. They are made to run all day everyday. Dry vane p...
by tomgardiner
Tue Mar 10, 2020 12:16 pm
Forum: VCarve - General
Topic: Vac Table Top Surface
Replies: 29
Views: 1026

Re: Vac Table Top Surface

With a 5 x 12 you will need something like 20 hp of vacuum. Typically two 10 hp pumps. If they are regenerative pumps double the hp required. I recommend separating the table into zone with there own valves.
by tomgardiner
Tue Mar 10, 2020 1:09 am
Forum: VCarve - General
Topic: Work holding
Replies: 14
Views: 729

Re: Work holding

You might want to consider five minute epoxy. After machining you can release the glue with a hot air gun or torch. Acetone will remove the rest.
The problem with tape is the adhesive isn't very heat resistant. Unless you are misting the brass temperature may rise to the point of tape failure.
by tomgardiner
Fri Mar 06, 2020 1:38 pm
Forum: VCarve - General
Topic: Selecting vectors not to cut?
Replies: 2
Views: 193

Re: Selecting vectors not to cut?

Can you cut the sheets upside down? Then you could mark each piece with a number and orientation before nesting then engrave and cut out the triangles
by tomgardiner
Sat Feb 29, 2020 12:25 am
Forum: VCarve - General
Topic: having trouble with table beveled edge
Replies: 7
Views: 373

Re: having trouble with table beveled edge

Your steps leave quite a bit of sanding. That's not a problem but in future you can make the calculation of more passes for the moulding and less time sanding versus less cnc time and more sanding. There is a sweet spot in there. The moulding function is very useful and will become your friend.
by tomgardiner
Mon Feb 17, 2020 1:25 pm
Forum: VCarve - General
Topic: How to mill from the side
Replies: 4
Views: 446

Re: How to mill from the side

You can also do a series of toolpaths, profile out, while varying the machining offset. I would include a lead in at a shallow angle. You can save programming time by making multiple copies of the toolpath then edit each to decrease the machining offset. Just make sure that you check that the offset...
by tomgardiner
Sun Feb 16, 2020 5:06 pm
Forum: VCarve - General
Topic: Pieces cut cut too small
Replies: 13
Views: 650

Re: Pieces cut cut too small

It would be unlikely that both axes would have the same wear but if this machine hasn't had routine maintenance then it would be wise to look into replacing the drive components susceptible to wear. I am not the right person to advise on this, others on the forum or on a machine specific forum such ...
by tomgardiner
Sun Feb 16, 2020 3:30 pm
Forum: VCarve - General
Topic: Pieces cut cut too small
Replies: 13
Views: 650

Re: Pieces cut cut too small

I figured that if it had a Perske spindle it is a big machine. Have a look at the wear to belts (if there are any) and pinions
Is this an ATC machine?
by tomgardiner
Sat Feb 15, 2020 11:11 pm
Forum: VCarve - General
Topic: Pieces cut cut too small
Replies: 13
Views: 650

Re: Pieces cut cut too small

That deflection is huge. Is the error consistent in both the x and y axis? I would be looking for machine play when the runout is that large. Collet wear would lead to chatter, vibration and loose bits.
by tomgardiner
Sat Feb 08, 2020 1:09 am
Forum: VCarve - General
Topic: Cutter Compensation
Replies: 10
Views: 708

Re: Cutter Compensation

I suppose duplicate V carve files with multiple cutter diameters would be a potential disaster.
by tomgardiner
Sun Feb 02, 2020 3:18 pm
Forum: VCarve - General
Topic: Curves vs. Bezier Curves
Replies: 14
Views: 1202

Re: Curves vs. Bezier Curves

In my experience, Bezier curves produce fewer nodes than arcs which is way better than what's often imported. I also found that it is important to convert to curves once you have done any transformations. You can preview any conversions and see which will give the least number of nodes.