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+--- Thread: How to install missing parts in LEOcad? (/thread-22983.html)
How to install missing parts in LEOcad? - momo - 2018-10-23
Hi everyone,
I am a newbie of LDraw,I have a project now need to import ldd file into 3dsmax,I have already known there is a way to convert it from ldd to leoCAD,and then export 3ds or obj format,what I confusing is how to using missing parts of leoCAD,
below is the file I will export,all units in lego:
![[Image: 1.png]](https://1.bp.blogspot.com/-uAb5E35VfuM/W88OlTu_WLI/AAAAAAAAAHQ/D1NwG-AEmccdCMJVHOZaY3hEGtvxLjMewCLcBGAs/s1600/1.png)
Missing units in leoCAD:
![[Image: 2.png]](https://2.bp.blogspot.com/-ZBSXOcnrdAI/W88Omm9AbCI/AAAAAAAAAHY/UC_rGRSVUdMohmSSQhQFE2ptB5rZtBUVwCLcBGAs/s1600/2.png)
I used 1 brick for test,in lego
![[Image: 3.png]](https://2.bp.blogspot.com/-JFiyQDpviws/W88OlmyCpfI/AAAAAAAAAHU/pvnLMEWvpmECutfRXEgF3_FyJlBo2ouAgCLcBGAs/s1600/3.png)
missing in leoCAD
![[Image: 4.png]](https://4.bp.blogspot.com/-0Y_XvGk7I_Y/W88OnBhkVaI/AAAAAAAAAHc/N_dP4EkvVzISkZywFcqIeQhGZdfosYyTACLcBGAs/s1600/4.png)
then ,following the http://www.ldraw.org/cgi-bin/ptscan.cgi?q=4869
I downloaded 4869.dat
parts/4869.dat
Plane Jet Engine Centre
I searched the library path,like below:
![[Image: 5.png]](https://2.bp.blogspot.com/-SumfhZhbxjY/W88TRB-pRhI/AAAAAAAAAHw/VZrqCJIwpRkCyUahjpsKUN0h62uoRJEDACLcBGAs/s1600/5.png)
The 4869.dat has already there
![[Image: 8.png]](https://1.bp.blogspot.com/-zZyHDCSb7Mg/W88Xg3CadYI/AAAAAAAAAIQ/hs-f26mXryoiGdWv0-UtdR0rNKE_wEf7wCLcBGAs/s1600/8.png)
But why it can not display in leoCAD?Do I missing some steps?Please help,I spent 2 days and did not find a solution,thanks in advance(I also uploaded the ldd and ldr files)