Modified TopsCNC from Germany 🇬🇧
Hallo
Ich habe eine Version TopsCNC Heavy 23 mit einem linearen Glet-Lager hergestellt. Bessere Steifigkeit, höhere Genauigkeit. Ich benutze eine 1,5 kW Vierkantspindel mit Luftkühlung. Daher ist die Frontplatte etwas anders. Außerdem habe ich eine SFU 1204 Kugelumlaufspindeleinstellung vorgenommen und Nema 23 für die Z-Achse installiert.
Alles auf Thingivese zu finden.
https://www.thingiverse.com/thing:4583991
https://www.thingiverse.com/thing:4588910
https://www.thingiverse.com/thing:4595595
https://www.thingiverse.com/thing:4628434
https://ibb.co/z4Xf580
Can you tell me what you bought for the Z ? Is the carriage Model MGN7C/H ? or MGN9C/H ? or MGN12C/H?
https://createforcuriosity.com/en/forum/topic/1xqK9YMD?page=4
MGN12C The short ones.
Hi Kamil,
Could you add me ?
Thank you so much !
3dvdev(a)gmail.com
You are welcome.
Thank you !
I was about to build a modified Heavy with SFU1204s when I read your post and discovered your upgrades...
Wonderful !
I have a question that you may have already answered, but I couldn't find the answer.
Why didn't you use an SFU1204 for the Z axis as well ?
Is it a matter of weight ?
Very simple. It does not make sense. When the cnc is working, it is important to have as few tolerances as possible on the x and y axes. On the z axis, it's all about how much material you take away.
So the benefit would be zero.
Hey Kamil,
Könntest du mir evtl weiter helfen in meinem Thread
EstlCAM with the TopsCNC Heavy
https://createforcuriosity.com/en/forum/topic/36Pm9oPW
Gerne auch auf deutsch 😊
Feel free to suggest improvements. If the Z axis with ball screw is better than with trapezoidal thread, I am interested.
I'm still thinking, but I think I'll go with 1605 for X and Y and 1204 for Z. I plan to adapt your modifications for that...
And, of course, I'll give my feedback !
Hi Kamil,
Thanks you so much or sharing your ideas and mods, they are very impressive! Please send me a link to your archive of your Fusion 360 files.
I am looking to upgrade form MPCNC to maybe a remix of TopsCNC. My usecase is mainly wood, acrylic and maybe bakelite or aluminium for milling plates for future CNC upgrades.
With everything having become very expensive and hard to source, I would like to keep the costs low as possible but add your ballscrew and linear bearings remixes. The size I had in mind was about 500x1000 (desktop size) with probably a Makita RT70xx spindle.
I was thinking of modifying the x-axis to use a 40x80 C-Beam to reduce the build cost but not
sure if it would have a negative impact on the overall performance/sturdyness and accuracy of the TopsCNC
design. Could do with your thoughts.
In one of your video's I noticed that you are using stainless steel wheels. What difference have you seen in the operation compared to the Delrin/Extream type wheels?
Thanking you in advance.