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									Plunge and feed rates - Operation				            </title>
            <link>https://www.stepcraft-systems.com/forum/operation/909-plunge-and-feed-rates</link>
            <description>CNC-Fräsen für Gewerbe, Bildung und Hobby - 3 Jahre Garantie Discussion Board</description>
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                        <title>Plunge and feed rates</title>
                        <link>https://www.stepcraft-systems.com/forum/operation/909-plunge-and-feed-rates#post-24230</link>
                        <pubDate>Wed, 08 Apr 2015 17:51:07 +0000</pubDate>
                        <description><![CDATA[I cut (profile) Birch plywood with a 3mm bit at 900mm/min, 300mm/min plunge rate, 2mm pass depth - no problems, hundreds of items cut.  This is with Stepcraft HF350 at 20000rpm, cutting plyw...]]></description>
                        <content:encoded><![CDATA[I cut (profile) Birch plywood with a 3mm bit at 900mm/min, 300mm/min plunge rate, 2mm pass depth - no problems, hundreds of items cut.  This is with Stepcraft HF350 at 20000rpm, cutting plywood up to 9mm thick.

I v-carve text with a 6mm v-bit using the same feed/plunge rates (60degree and 90degree v-bits).  Same rates are good with 2mm 60degree v-bit.

When I was using plywood from China, these feed rates broke several bits.

If I know a toolpath is not going deep (less than 1mm) I will happily run up to 1200mm/min in plywood.]]></content:encoded>
						                            <category domain="https://www.stepcraft-systems.com/forum/operation">Operation</category>                        <dc:creator>Donald McIntosh</dc:creator>
                        <guid isPermaLink="true">https://www.stepcraft-systems.com/forum/operation/909-plunge-and-feed-rates#post-24230</guid>
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				                    <item>
                        <title>Plunge and feed rates</title>
                        <link>https://www.stepcraft-systems.com/forum/operation/909-plunge-and-feed-rates#post-24038</link>
                        <pubDate>Sat, 04 Apr 2015 21:31:55 +0000</pubDate>
                        <description><![CDATA[Just some of my parameters to compare:

For plywood I use usually 420-480 mm/s (7-8mm/s), for harder wood 360 (6mm/s) feed rate.
I use usually 120mm/s (2mm/s) plunge rate.

With 1mm I g...]]></description>
                        <content:encoded><![CDATA[Just some of my parameters to compare:

For plywood I use usually 420-480 mm/s (7-8mm/s), for harder wood 360 (6mm/s) feed rate.
I use usually 120mm/s (2mm/s) plunge rate.

With 1mm I go @20kRPM and I cust up to 4mm with no problem, also with 0,8mm.

With 3+mm I go only 2mm max.

My Z-clearance is mostly 2-3 mm, had never anything breaking because of that unless I left something on the table and the tool crasked into it.

The main reason why I break tools is that I made a mistake, and there were many of them so far. But since 2 month tools get older and replaced mainly when they are not sharp anymore  :cheer:]]></content:encoded>
						                            <category domain="https://www.stepcraft-systems.com/forum/operation">Operation</category>                        <dc:creator>Franz</dc:creator>
                        <guid isPermaLink="true">https://www.stepcraft-systems.com/forum/operation/909-plunge-and-feed-rates#post-24038</guid>
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				                    <item>
                        <title>Plunge and feed rates</title>
                        <link>https://www.stepcraft-systems.com/forum/operation/909-plunge-and-feed-rates#post-24034</link>
                        <pubDate>Sat, 04 Apr 2015 20:15:51 +0000</pubDate>
                        <description><![CDATA[G01 is machining instruction

G00 is movement between cutting. 

looks good - well done!!


One general comment on your video - your cutter is really long with large stick out.  This ...]]></description>
                        <content:encoded><![CDATA[G01 is machining instruction

G00 is movement between cutting. 

looks good - well done!!


One general comment on your video - your cutter is really long with large stick out.  This will result in amplification of vibrations. What you want is to have cutter stickout just larger than your cutting depth. This gives the best results. 

The closer you can get the bottom of the cutter to the collet the less vibration will come from the cutter - but this brings the machine down closer to clamps etc.]]></content:encoded>
						                            <category domain="https://www.stepcraft-systems.com/forum/operation">Operation</category>                        <dc:creator>Rory Stoney</dc:creator>
                        <guid isPermaLink="true">https://www.stepcraft-systems.com/forum/operation/909-plunge-and-feed-rates#post-24034</guid>
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				                    <item>
                        <title>Plunge and feed rates</title>
                        <link>https://www.stepcraft-systems.com/forum/operation/909-plunge-and-feed-rates#post-24030</link>
                        <pubDate>Sat, 04 Apr 2015 18:25:34 +0000</pubDate>
                        <description><![CDATA[I am new at CNC, only experience I have is with vinyl cutter and vectors. I did not buy Vcut or MACH3, I want to see if software I have can do what I need. I am finding out there is issues t...]]></description>
                        <content:encoded><![CDATA[I am new at CNC, only experience I have is with vinyl cutter and vectors. I did not buy Vcut or MACH3, I want to see if software I have can do what I need. I am finding out there is issues trying to export vector to a DXF (or it was CorelDraw's export), and some g-code generators works with DXF only and others with SVG. So I wanted to start with the most basic engraving as a first test and found EASEL.com, its web base and can download the g-code (click Machine&gt;advanced) it gave me option for Safety Height and Step Over, I do not know what <b>step over</b>% is.  I have much to learn and have other software to try. 

here is video of our first run, 
https://www.youtube.com/watch?v=ZgSs4ZRuc0o

do you think X/Y was too fast?   

Z Homing height is fully up, I configured the safety height in the program that creates the g-code, but have not seen anything called rapid clearance.
Looking at the codes, 
<ul>
  <li>G1 Z5.080 F228.6</li>
  <li>G0 X37.325 Y33.926</li>
  <li>G1 Z-1.270 F228.6</li>
 
</ul>
  it looks like it is using G1 for raising the Z and G0 to move to next job.
cool!, as I'm writing this post its making sense to me, I need to read up on Gcodes and Mcodes. And better software to create the G-codes for more control.

one thing the vinyl cutter has I wished this has is 'show me' , what it does is with cutter up, it does a boundary run showing you how far the cutting will go so you can make sure it does not go off your material.  is there such thing in UCCNC?

Thank you]]></content:encoded>
						                            <category domain="https://www.stepcraft-systems.com/forum/operation">Operation</category>                        <dc:creator>Cindy</dc:creator>
                        <guid isPermaLink="true">https://www.stepcraft-systems.com/forum/operation/909-plunge-and-feed-rates#post-24030</guid>
                    </item>
				                    <item>
                        <title>Plunge and feed rates</title>
                        <link>https://www.stepcraft-systems.com/forum/operation/909-plunge-and-feed-rates#post-24018</link>
                        <pubDate>Sat, 04 Apr 2015 16:30:55 +0000</pubDate>
                        <description><![CDATA[if your Z axis movements are slowing you down - then drop the rapid clearance height. the machine will move back to the rapid clearance gap each time it finished an operation.

are you usi...]]></description>
                        <content:encoded><![CDATA[if your Z axis movements are slowing you down - then drop the rapid clearance height. the machine will move back to the rapid clearance gap each time it finished an operation.

are you using Cut2D? 

If this rapid clearance height is high it can waste time..

However - careful careful careful as this setting will save itself... we did this for a PCB operation and had the Z clearance at 0.5mm... then changed to aluminium job next day and the 0.5 remained... the larger router crashed a 6mm carbide tool straight into the clamps and the tool was f***ed... 30£'s worth of tool gone... so be careful. 

its always safer to keep the Z clearance high as it reduces crash risk 

NOTE: there is a machine home position also - this is 20mm by default (I think) so the machine will always go up to +20mm. if you ave a high workpiece this can stop the machine retracting to the Z limit switch.



when the machine is moving between jobs it will use the g00 command - this is the rapid movement command - this will be the max movement speed of the machine.  in the case of STEPCRAFT 1 will be 1800mm/min. STEPCRAFT 2 3,000mm/min<div class="wpforo-attached-file"><a class="wpforo-default-attachment go2wpf-inline-attach" href="//stepcraft-systems.com/wp-content/uploads/wpforo/attachments/26453/18266=4397-rapidmoveparams.png"><i class="fas fa-paperclip"></i> <div class="wpforo-attached-file-img"><img class="go2wpf-inline-attach-img" style="max-width: 320px;max-height: 240px" src="//stepcraft-systems.com/wp-content/uploads/wpforo/attachments/26453/18266=4397-rapidmoveparams.png" alt=""></div></a></div><div class="wpforo-attached-file"><a class="wpforo-default-attachment go2wpf-inline-attach" href="//stepcraft-systems.com/wp-content/uploads/wpforo/attachments/26453/18266=4398-workpiecesetup.png"><i class="fas fa-paperclip"></i> <div class="wpforo-attached-file-img"><img class="go2wpf-inline-attach-img" style="max-width: 320px;max-height: 240px" src="//stepcraft-systems.com/wp-content/uploads/wpforo/attachments/26453/18266=4398-workpiecesetup.png" alt=""></div></a></div>]]></content:encoded>
						                            <category domain="https://www.stepcraft-systems.com/forum/operation">Operation</category>                        <dc:creator>Rory Stoney</dc:creator>
                        <guid isPermaLink="true">https://www.stepcraft-systems.com/forum/operation/909-plunge-and-feed-rates#post-24018</guid>
                    </item>
				                    <item>
                        <title>Plunge and feed rates</title>
                        <link>https://www.stepcraft-systems.com/forum/operation/909-plunge-and-feed-rates#post-24016</link>
                        <pubDate>Sat, 04 Apr 2015 16:16:50 +0000</pubDate>
                        <description><![CDATA[Hi, 
I just did my first test carving letters into plywood,  the Plunge rate Z down is nice and slow but also for Z up.
is wouldn&#039;t happen to be a way to tell it to go up at a different sp...]]></description>
                        <content:encoded><![CDATA[Hi, 
I just did my first test carving letters into plywood,  the Plunge rate Z down is nice and slow but also for Z up.
is wouldn't happen to be a way to tell it to go up at a different speed?  since going up its not doing any cutting.  I had my safe height set higher then I needed and it took a lot of time between letters.]]></content:encoded>
						                            <category domain="https://www.stepcraft-systems.com/forum/operation">Operation</category>                        <dc:creator>Cindy</dc:creator>
                        <guid isPermaLink="true">https://www.stepcraft-systems.com/forum/operation/909-plunge-and-feed-rates#post-24016</guid>
                    </item>
				                    <item>
                        <title>Plunge and feed rates</title>
                        <link>https://www.stepcraft-systems.com/forum/operation/909-plunge-and-feed-rates#post-16021</link>
                        <pubDate>Fri, 24 Oct 2014 19:28:31 +0000</pubDate>
                        <description><![CDATA[When milling - its best to ramp plunge. So you don&#039;t go straight down in Z. For example when milling Aluminium on larger machines its best to ramp / helical plunge. This puts less pressure o...]]></description>
                        <content:encoded><![CDATA[When milling - its best to ramp plunge. So you don't go straight down in Z. For example when milling Aluminium on larger machines its best to ramp / helical plunge. This puts less pressure on cutter. Milling cutters cannot remove material in the drilling direction as well as drill bits. 

There is a ramp plung option in the toolpath section of Vcarve.]]></content:encoded>
						                            <category domain="https://www.stepcraft-systems.com/forum/operation">Operation</category>                        <dc:creator>Rory Stoney</dc:creator>
                        <guid isPermaLink="true">https://www.stepcraft-systems.com/forum/operation/909-plunge-and-feed-rates#post-16021</guid>
                    </item>
				                    <item>
                        <title>Plunge and feed rates</title>
                        <link>https://www.stepcraft-systems.com/forum/operation/909-plunge-and-feed-rates#post-15924</link>
                        <pubDate>Wed, 22 Oct 2014 11:18:23 +0000</pubDate>
                        <description><![CDATA[Havent come so far so i made 3d !
Only RC details 
if i understand you correctly]]></description>
                        <content:encoded><![CDATA[Havent come so far so i made 3d !
Only RC details 
if i understand you correctly]]></content:encoded>
						                            <category domain="https://www.stepcraft-systems.com/forum/operation">Operation</category>                        <dc:creator>Jörgen Jönsson</dc:creator>
                        <guid isPermaLink="true">https://www.stepcraft-systems.com/forum/operation/909-plunge-and-feed-rates#post-15924</guid>
                    </item>
				                    <item>
                        <title>Plunge and feed rates</title>
                        <link>https://www.stepcraft-systems.com/forum/operation/909-plunge-and-feed-rates#post-15921</link>
                        <pubDate>Wed, 22 Oct 2014 09:27:42 +0000</pubDate>
                        <description><![CDATA[Ah what was I think of then, when you plunge in at an angle?]]></description>
                        <content:encoded><![CDATA[Ah what was I think of then, when you plunge in at an angle?]]></content:encoded>
						                            <category domain="https://www.stepcraft-systems.com/forum/operation">Operation</category>                        <dc:creator>Alex Robertson</dc:creator>
                        <guid isPermaLink="true">https://www.stepcraft-systems.com/forum/operation/909-plunge-and-feed-rates#post-15921</guid>
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				                    <item>
                        <title>Plunge and feed rates</title>
                        <link>https://www.stepcraft-systems.com/forum/operation/909-plunge-and-feed-rates#post-15919</link>
                        <pubDate>Wed, 22 Oct 2014 07:48:56 +0000</pubDate>
                        <description><![CDATA[Tryed Balsa and plywood and worked perfect !!!

Maybe we can make some table for diffrent materials and mills

would be easy for us and also for more beginners like me

Thanx]]></description>
                        <content:encoded><![CDATA[Tryed Balsa and plywood and worked perfect !!!

Maybe we can make some table for diffrent materials and mills

would be easy for us and also for more beginners like me

Thanx]]></content:encoded>
						                            <category domain="https://www.stepcraft-systems.com/forum/operation">Operation</category>                        <dc:creator>Jörgen Jönsson</dc:creator>
                        <guid isPermaLink="true">https://www.stepcraft-systems.com/forum/operation/909-plunge-and-feed-rates#post-15919</guid>
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