Hi, use 8mm plated hardened rods and Igus Polymer bearings. I bought mine on Aliexpress and they are great. No noise, no failing bearing balls. The price is low, on Aliexpress you pay something like $3 to $8 for a hardened chrome plated steel rod and about $2 to $3 for a Solid Polymer LM8UU Bearing. You can use the Polymer bearing as you would use ball bearings. The dimensions are the same. Onlby dutchengineer - Reprappers
Hi, today I enabled the nozzle clean routine in Marlin. I mounted a small brass brush on the side of my printer table and enabled and configured the printer clean routine in Marlin. The printhead is moving to the brush and then makes a number of moves over the brush, cleaning the nozzle. This works...well, rather good, but........ The routine in Marlin lets the printhead make a zig-zag move a nuby dutchengineer - Reprappers
Hi DLC, Thanks for your help. I agree with you that it is a ground issue. I've decided to leave the matter as it is and use a Bluetooth connection between the Arduino and my PC. I know I have to make some changes in order to have the Arduino upload sketches via Bluetooth also but there is lots of help on Youtube for that. As soon as my new (again ) Arduino Mega arrives I'll make the changes. Beby dutchengineer - Reprappers
Thanks DC42, I red the article. It makes sense. It doesn't solve my problem however, but the recommendation using an USB isolator might be the solution. Thanks for your help.by dutchengineer - Reprappers
Hi o_lampe, thanks for your fast respons. The input of DC-DC converter is hooked up to the 12 V output of the 3D printer. In order to move on with this problem I already ordered and installed the Ramps 1.6 board. I must say, nice board, a real improvement, but it didn't solve my problem. I thought I maybe could remove the DC-DC converter and use the enhanced 5 Volt supply of the Ramps 1.6 sinceby dutchengineer - Reprappers
Hi, I've ordered at Aliexpress many many times. If we leave the quality of the Chinese products in general for what it is, I think that Aliexpress is one of the best Internet suppliers. Of all the orders I placed with them (must be far over 100) I never had a disappointment. It might take a long time before you get the stuff. Sometimes I had to wait for 6 or 8 weeks, but the stuff always arrived.by dutchengineer - Reprappers
Hi, I hope somebody is able and willing to help me. I've got problems with the 12V power supply, USB cable and 5 V supply of my (DIY) 3D printer. I am ruining one Mega board after the other trying to figure out what is wrong. I've got a suspicion that there is something wrong with the grounding of my 3D printer, only I can't solve it. The printer as such works like a charm, no problems whatsoeveby dutchengineer - Reprappers
Hallo, mijn printer is uitgerust met een HC05 bluetooth module op de AUX-1 aansluiting (pin D0, D1) van een Ramps 1.4 board. Dit werkt prima, echter alleen om de printer aan te sturen. Printen met behulp van Repetier-Host en Pronterface gaat fluitend. Ik kan de printer ook probleemloos aansturen met behulp van de Seriƫle Monitor van het Arduino programma. Dat werkt allemaal flitsend. Alleen, de Mby dutchengineer - Electronica