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HP Jet Fusion 300 User Guide - Page 44

Glue lines., Ducts., minimum spacing between parts printed as assemblies see above.

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- Minimum recommended diameter of drain holes: 5 mm. - Minimum recommended wall thickness: 2 mm. - This method offers maximum part weight reduction. - Unfused material will remain inside the part. - Minimum recommended wall thickness is 2 mm. - There is still a noticeable weight reduction compared to a solid part. ● Glue lines. Parts larger than the maximum build size can be printed with Multi Jet Fusion by splitting them into different parts. They can then be joined together by glueing, welding, or by pin inserts. If you plan to glue parts together, HP recommends including interlocking features such as those shown in the pictures below: as a guide to position the parts, to help them to bond together, and to facilitate the glueing process. Remember to leave an additional space of 0.2 mm between parts for the glue, in addition to the minimum spacing between parts printed as assemblies (see above). ● Ducts. To remove material from narrow ducts, consider designing and printing a strip or a chain through the duct. When the parts have been printed, you can pull out the chain to dislodge most of the material. Any remaining material can be removed by the normal cleaning process. 38 Chapter 6 Design and printing guidelines

Section	Page
Welcome to your MJF system	7
Documentation	7
Product usage requirements	7
MJF technology	8
Usage recommendations	8
Safety precautions	11
Introduction	11
General safety guidelines	11
Final parts/builds	12
Explosion hazard	12
Electrical shock hazard	13
Heat hazard	13
Fire hazard	14
Mechanical hazard	15
Light radiation hazard	15
Chemical hazard	15
Ventilation	15
Air conditioning	16
Sound pressure level	16
Printer transport hazard	16
3D part retrieval	16
Personal protective equipment	16
Use of tools	17
Warnings and cautions	17
Warning labels	17
Emergency stop button	20
Main components	21
Printer	21
Front panel	22
Set the administrator password	25
Log out and log in	26
Software	26
Power on and off	29
Turn the printer on and off	29
Main power switch	30
Away mode	31
Recommendations upon returning from an idle period	31
Printer networking	35
Introduction	35
Connectivity requirement and remote monitoring	35
Configuration	36
Design and printing guidelines	37
Introduction	37
File preparation	37
Prepare a job	51
Introduction	51
Build packing basic guidelines	51
Job settings selection	51
Send a job	55
Select a job	57
Job list app	57
Select a job to be printed	57
Printer preparation	59
Job preparation list	59
Agents	59
Material	62
Distilled or deionized water	66
How to recycle consumables and printed parts	68
Print	69
Indemnity to HP for 3D parts printed by the printer	69
Cancel a job	69
Check status on the front panel	69
Check status remotely	71
Possible errors while printing	71
Printing and Cooling Profiles	72
Cooling and part retrieval	73
Part retrieval	73
Keeping the printer clean	74
Post-processing	75
Troubleshooting	77
Network troubleshooting	77
Start-up issues	78
Power-on issues	78
Agent troubleshooting	78
Material cartridge troubleshooting	81
Printhead health troubleshooting	81
How to get the diagnostic package	96
Water tank refill too slow troubleshooting	97
Maintenance	99
Safety precautions	99
General cleaning instructions	99
Maintenance resources	100
Maintenance tools recommended but not provided	100
Printer maintenance schedule	104
Clean the print area	105
Wipe the recoating roller	109
Scrape and wipe the fusing lamp	110
Vacuum the air exhaust filter compartment	114
Vacuum the material reclamation sieve drawer	117
Clean the inside of the viewing window (500 series only)	119
Clean the build-chamber front rail	120
Clean the scanner	120
Replace a fusing lamp	123
Replace the cleaning roll	127
Replace the material reclamation filter	132
Replace the air exhaust filter	135
Replace a printhead	138
Replace the print-area filter	146
Replace the air intake filter	149
Replace the printhead cap	152
Align the printheads	153
Move or store the printer	161
Print-quality optimization	163
General advice	163
Ordering information and end-of-life recommendations	165
System errors	167
When you need help	169
Request support	169
Customer Self-Repair	169
Service information	170
Accessibility	171
Front panel	171

Match case Limit results 1 per page

–

Minimum recommended diameter of drain holes: 5 mm.

–

Minimum recommended wall thickness: 2 mm.

–

This method oﬀers maximum part weight reduction.

–

Unfused material will remain inside the part.

–

Minimum recommended wall thickness is 2 mm.

–

There is still a noticeable weight reduction compared to a solid part.

●

Glue lines.

Parts larger than the maximum build size can be printed with Multi Jet Fusion by splitting them

into diﬀerent parts. They can then be joined together by glueing, welding, or by pin inserts.

If you plan to glue parts together, HP recommends including interlocking features such as those shown in the

pictures below: as a guide to position the parts, to help them to bond together, and to facilitate the glueing

process. Remember to leave an additional space of 0.2 mm between parts for the glue, in addition to the

minimum spacing between parts printed as assemblies (see above).

●

Ducts.

To remove material from narrow ducts, consider designing and printing a strip or a chain through the

duct. When the parts have been printed, you can pull out the chain to dislodge most of the material. Any

remaining material can be removed by the normal cleaning process.

Chapter 6

Design and printing guidelines